Lex Kaper, Ph.D. - Publications

Affiliations: 
Astronomical Institute University of Amsterdam, Amsterdam, Netherlands 

194 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2021 Guo D, de Koter A, Kaper L, Brown AGA, de Bruijne JHJ. Fine structure in the luminosity function in young stellar populations with Gaia DR2 Astronomy & Astrophysics. 655: A45. DOI: 10.1051/0004-6361/202141205  0.421
2021 van der Meij V, Guo D, Kaper L, Renzo M. Confirming NGC 6231 as the parent cluster of the runaway high-mass X-ray binary HD 153919/4U 1700-37 with Gaia DR2 Astronomy & Astrophysics. 655: A31. DOI: 10.1051/0004-6361/202040114  0.412
2021 Ramírez-Tannus MC, Backs F, de Koter A, Sana H, Beuther H, Bik A, Brandner W, Kaper L, Linz H, Henning T, Poorta J. A relation between the radial velocity dispersion of young clusters and their age Astronomy & Astrophysics. 645: L10. DOI: 10.1051/0004-6361/202039673  0.419
2020 Shepard K, Gies DR, Lester KV, Wang L, Guo Z, Kaper L, Koter AD, Sana H. HST/COS Spectra of the Wind Lines of VFTS 102 and 285 The Astrophysical Journal. 888: 82. DOI: 10.3847/1538-4357/Ab5A82  0.446
2020 Gelder MLv, Kaper L, Japelj J, Ramírez-Tannus MC, Ellerbroek LE, Barbá RH, Bestenlehner JM, Bik A, Gräfener G, Koter Ad, Mink SEd, Sabbi E, Sana H, Sewiło M, Vink JS, et al. VLT/X-shooter spectroscopy of massive young stellar objects in the 30 Doradus region of the Large Magellanic Cloud Astronomy and Astrophysics. 636. DOI: 10.1051/0004-6361/201936361  0.539
2020 Ramírez-Tannus MC, Poorta J, Bik A, Kaper L, Koter Ad, Ridder JD, Beuther H, Brandner W, Davies B, Gennaro M, Guo D, Henning T, Linz H, Naylor T, Pasquali A, et al. The young stellar content of the giant HII regions M8, G333.6-0.2, and NGC6357 with VLT/KMOS Astronomy and Astrophysics. 633. DOI: 10.1051/0004-6361/201935941  0.811
2019 Izzo L, de Ugarte Postigo A, Maeda K, Thöne CC, Kann DA, Della Valle M, Sagues Carracedo A, Michałowski MJ, Schady P, Schmidl S, Selsing J, Starling RLC, Suzuki A, Bensch K, Bolmer J, ... ... Kaper L, et al. Signatures of a jet cocoon in early spectra of a supernova associated with a γ-ray burst. Nature. 565: 324-327. PMID 30651614 DOI: 10.1038/S41586-018-0826-3  0.539
2019 Gorgone NM, Kouveliotou C, Negoro H, Wijers RAMJ, Bozzo E, Guiriec S, Bult P, Huppenkothen D, Göğüş E, Bahramian A, Kennea J, Linford JD, Miller-Jones J, Baring MG, Beniamini P, ... ... Kaper L, et al. Discovery and Identification of MAXI J1621–501 as a Type I X-Ray Burster with a Super-orbital Period The Astrophysical Journal. 884: 168. DOI: 10.3847/1538-4357/Ab3E43  0.482
2019 Heintz KE, Zafar T, Cia AD, Vergani SD, Jakobsson P, Fynbo JPU, Watson D, Japelj J, Møller P, Covino S, Kaper L, Andersen AC. On the dust properties of high-redshift molecular clouds and the connection to the 2175 Å extinction bump Monthly Notices of the Royal Astronomical Society. 486: 2063-2074. DOI: 10.1093/Mnras/Stz1012  0.471
2019 Heintz KE, Bolmer J, Ledoux C, Noterdaeme P, Krogager JK, Fynbo JPU, Jakobsson P, Covino S, D'Elia V, Pasquale MD, Hartmann DH, Izzo L, Japelj J, Kann DA, Kaper L, et al. New constraints on the physical conditions in H2-bearing GRB-host damped Lyman-α absorbers Astronomy and Astrophysics. 629. DOI: 10.1051/0004-6361/201936250  0.357
2019 Japelj J, Laigle C, Puech M, Pichon C, Rahmani H, Dubois Y, Devriendt JEG, Petitjean P, Hammer F, Gendron E, Kaper L, Morris S, Pirzkal N, Sánchez-Janssen R, Slyz A, et al. Simulating MOS science on the ELT : Lyα forest tomography Astronomy and Astrophysics. 632. DOI: 10.1051/0004-6361/201936048  0.535
2019 Bolmer J, Ledoux C, Wiseman P, Cia AD, Selsing J, Schady P, Greiner J, Savaglio S, Burgess JM, D’Elia V, Fynbo JPU, Goldoni P, Hartmann DH, Heintz KE, Jakobsson P, ... ... Kaper L, et al. Evidence for diffuse molecular gas and dust in the hearts of gamma-ray burst host galaxies. Unveiling the nature of high-redshift damped Lyman-α systems Astronomy and Astrophysics. 623: 1-45. DOI: 10.1051/0004-6361/201834422  0.525
2019 Escorial AR, Wijnands R, Ootes LS, Degenaar N, Snelders M, Kaper L, Cackett EM, Homan J. Quiescent X-ray variability in the neutron star Be/X-ray transient GRO J1750-27 Astronomy and Astrophysics. 630. DOI: 10.1051/0004-6361/201834327  0.515
2019 Heintz KE, Ledoux C, Fynbo JPU, Jakobsson P, Noterdaeme P, Krogager J-, Bolmer J, Møller P, Vergani SD, Watson D, Zafar T, Cia AD, Tanvir NR, Malesani DB, Japelj J, ... ... Kaper L, et al. Cold gas in the early Universe Survey for neutral atomic-carbon in GRB host galaxies at 1 < z < 6 from optical afterglow spectroscopy Astronomy and Astrophysics. 621. DOI: 10.1051/0004-6361/201834246  0.485
2019 Selsing J, Malesani D, Goldoni P, Fynbo JPU, Krühler T, Antonelli LA, Arabsalmani M, Bolmer J, Cano Z, Christensen L, Covino S, D’Avanzo P, D’Elia V, De Cia A, de Ugarte Postigo A, ... ... Kaper L, et al. The X-shooter GRB afterglow legacy sample (XS-GRB) Astronomy & Astrophysics. 623: A92. DOI: 10.1051/0004-6361/201832835  0.765
2018 Zafar T, Heintz KE, Fynbo JPU, Malesani D, Bolmer J, Ledoux C, Arabsalmani M, Kaper L, Campana S, Starling RLC, Selsing J, Kann DA, Postigo AdU, Schweyer T, Christensen L, et al. The 2175 Å Extinction Feature in the Optical Afterglow Spectrum of GRB 180325A at z = 2.25 The Astrophysical Journal. 860. DOI: 10.3847/2041-8213/Aaca3F  0.304
2018 Tanvir NR, Laskar T, Levan AJ, Perley DA, Zabl J, Fynbo JPU, Rhoads J, Cenko SB, Greiner J, Wiersema K, Hjorth J, Cucchiara A, Berger E, Bremer MN, Cano Z, ... ... Kaper L, et al. The Properties of GRB 120923A at a Spectroscopic Redshift of z ≈ 7.8 The Astrophysical Journal. 865: 107. DOI: 10.3847/1538-4357/Aadba9  0.564
2018 Cami J, Cox NL, Farhang A, Smoker J, Elyajouri M, Lallement R, Bacalla X, Bhatt NH, Bron E, Cordiner MA, Koter Ad, Ehrenfreund P, Evans C, Foing BH, Javadi A, ... ... Kaper L, et al. The ESO Diffuse Interstellar Band Large Exploration Survey (EDIBLES) The Messenger. 171: 31-36. DOI: 10.18727/0722-6691/5066  0.466
2018 Tanvir NR, Fynbo JPU, de Ugarte Postigo A, Japelj J, Wiersema K, Malesani D, Perley DA, Levan AJ, Selsing J, Cenko SB, Kann DA, Milvang-Jensen B, Berger E, Cano Z, Chornock R, ... ... Kaper L, et al. The fraction of ionizing radiation from massive stars that escapes to the intergalactic medium Monthly Notices of the Royal Astronomical Society. 483: 5380-5408. DOI: 10.1093/Mnras/Sty3460  0.566
2018 Heintz KE, Watson D, Jakobsson P, Fynbo JPU, Bolmer J, Arabsalmani M, Cano Z, Covino S, D'Elia V, Gomboc A, Japelj J, Kaper L, Krogager JK, Pugliese G, Sánchez-Ramírez R, et al. Highly ionized metals as probes of the circumburst gas in the natal regions of gamma-ray bursts Monthly Notices of the Royal Astronomical Society. 479: 3456-3476. DOI: 10.1093/Mnras/Sty1447  0.423
2018 Heintz KE, Malesani D, Wiersema K, Jakobsson P, Fynbo JPU, Savaglio S, Cano Z, Covino S, D'Elia V, Gomboc A, Hammer F, Kaper L, Milvang-Jensen B, Møller P, Piranomonte S, et al. The luminous, massive and solar metallicity galaxy hosting the Swift γ-ray burst GRB 160804A at z = 0.737 Monthly Notices of the Royal Astronomical Society. 474: 2738-2749. DOI: 10.1093/Mnras/Stx2895  0.342
2018 Hernandez S, Larsen S, Trager S, Kaper L, Groot P. Metallicities of Young Massive Clusters in NGC 5236 (M83) Monthly Notices of the Royal Astronomical Society. 473: 826-837. DOI: 10.1093/Mnras/Stx2397  0.439
2018 Ramírez-Tannus MC, Cox NLJ, Kaper L, Koter Ad. Diffuse interstellar bands in the H II region M17 : Insights into their relation with the total-to-selective visual extinction Rv Astronomy and Astrophysics. 620. DOI: 10.1051/0004-6361/201833340  0.449
2018 Japelj J, Vergani SD, Salvaterra R, Renzo M, Zapartas E, Mink SEd, Kaper L, Zibetti S. Host galaxies of SNe Ic-BL with and without long gamma-ray bursts Astronomy and Astrophysics. 617. DOI: 10.1051/0004-6361/201833209  0.466
2018 Oostrum LC, Ochsendorf BB, Kaper L, Tielens AGGM. Unidentified emission features in the R Coronae Borealis star V854 Centauri Astronomy & Astrophysics. 610: L6. DOI: 10.1051/0004-6361/201731549  0.476
2018 Selsing J, Krühler T, Malesani D, D'Avanzo P, Schulze S, Vergani SD, Palmerio J, Japelj J, Milvang-Jensen B, Watson D, Jakobsson P, Bolmer J, Cano Z, Covino S, D'Elia V, ... ... Kaper L, et al. The host galaxy of the short GRB 111117A at z=2.211 Impact on the short GRB redshift distribution and progenitor channels Astronomy and Astrophysics. 616. DOI: 10.1051/0004-6361/201731475  0.301
2017 Cox NLJ, Cami J, Farhang A, Smoker J, Monreal-Ibero A, Lallement R, Sarre PJ, Marshall CCM, Smith KT, Evans CJ, Royer P, Linnartz H, Cordiner MA, Joblin C, van Loon JT, ... ... Kaper L, et al. The ESO Diffuse Interstellar Bands Large Exploration Survey: EDIBLES I. Project description, survey sample and quality assessment. Astronomy and Astrophysics. 606. PMID 29151608 DOI: 10.1051/0004-6361/201730912  0.436
2017 Hyde E, Russell DM, Ritter A, Filipovic M, Kaper L, Grieve K, O'Brien AN. LMC X-1 : A New Spectral Analysis of the O-star in the Binary and Surrounding Nebula Publications of the Astronomical Society of the Pacific. 129: 94201. DOI: 10.1088/1538-3873/Aa7407  0.496
2017 Bagnulo S, Cox NLJ, Cikota A, Siebenmorgen R, Voshchinnikov NV, Patat F, Smith KT, Smoker JV, Taubenberger S, Kaper L, Cami J. Large Interstellar Polarisation Survey (LIPS) - I. FORS2 spectropolarimetry in the Southern Hemisphere Astronomy and Astrophysics. 608. DOI: 10.1051/0004-6361/201731459  0.455
2017 Hernandez S, Larsen S, Trager S, Groot P, Kaper L. Chemical abundances of two extragalactic young massive clusters Astronomy and Astrophysics. 603: 1-24. DOI: 10.1051/0004-6361/201730550  0.454
2017 Sana H, Ramirez-Tannus MC, Koter Ad, Kaper L, Tramper F, Bik A. A dearth of short-period massive binaries in the young massive star forming region M 17 - Evidence for a large orbital separation at birth? Astronomy and Astrophysics. 599. DOI: 10.1051/0004-6361/201630087  0.823
2017 Ramirez-Tannus MC, Kaper L, Koter Ad, Tramper F, Bik A, Ellerbroek LE, Ochsendorf BB, Ramirez-Agudelo OH, Sana H. Massive pre-main-sequence stars in M17 Astronomy and Astrophysics. 604. DOI: 10.1051/0004-6361/201629503  0.838
2017 Wehres N, Ochsendorf BB, Tielens AGGM, Cox NLJ, Kaper L, Bally J, Snow TP. Medium-resolution échelle spectroscopy of the Red Square Nebula, MWC 922 Astronomy & Astrophysics. 601: A69. DOI: 10.1051/0004-6361/201628723  0.531
2017 Covino S, Wiersema K, Fan YZ, Toma K, Higgins AB, Melandri A, D’Avanzo P, Mundell CG, Palazzi E, Tanvir NR, Bernardini MG, Branchesi M, Brocato E, Campana S, Alighieri SDS, ... ... Kaper L, et al. Author correction : The unpolarized macronova associated with the gravitational wave event GW 170817 Nature Astronomy. 1: 805-805. DOI: 10.1038/S41550-017-0319-6  0.313
2017 Covino S, Wiersema K, Fan YZ, Toma K, Higgins AB, Melandri A, D’avanzo P, Mundell CG, Palazzi E, Tanvir NR, Bernardini MG, Branchesi M, Brocato E, Campana S, Alighieri SDS, ... ... Kaper L, et al. The unpolarized macronova associated with the gravitational wave event GW 170817 Nature Astronomy. 1: 791-794. DOI: 10.1038/S41550-017-0285-Z  0.467
2016 Hammer F, Morris S, Kaper L, Barbuy B, Cuby J, Roth M, Jagourel P, Evans C, Puech M, Fitzsimons E, Dalton G, Rodrigues M. The E-ELT Multi-Object Spectrograph: latest news from MOSAIC Proceedings of Spie. 9908: 990824. DOI: 10.1117/12.2232427  0.494
2016 Ubachs W, Bagdonaite J, Salumbides EJ, Murphy MT, Kaper L. Colloquium: Search for a drifting proton-electron mass ratio from H 2 Reviews of Modern Physics. 88. DOI: 10.1103/Revmodphys.88.021003  0.476
2016 Wade GA, Neiner C, Alecian E, Grunhut JH, Petit V, de Batz B, Bohlender DA, Cohen DH, Henrichs HF, Kochukhov O, Landstreet JD, Manset N, Martins F, Mathis S, Oksala ME, ... ... Kaper L9, et al. The MiMeS survey of magnetism in massive stars: Introduction and overview Monthly Notices of the Royal Astronomical Society. 456: 2-22. DOI: 10.1093/Mnras/Stv2568  0.487
2016 Tramper F, Sana H, Fitzsimons NE, Koter Ad, Kaper L, Mahy L, Moffat A. The mass of the very massive binary WR21a Monthly Notices of the Royal Astronomical Society. 455: 1275-1281. DOI: 10.1093/Mnras/Stv2373  0.441
2016 Kaper L, Fynbo JP, Pugliese V, van Rest D. The VLT/X-shooter GRB afterglow legacy survey Proceedings of the International Astronomical Union. 12: 410-410. DOI: 10.1017/S1743921317003428  0.403
2015 Friis M, De Cia A, Krühler T, Fynbo JPU, Ledoux C, Vreeswijk PM, Watson DJ, Malesani D, Gorosabel J, Starling RLC, Jakobsson P, Varela K, Wiersema K, Drachmann AP, Trotter A, ... ... Kaper L, et al. The warm, the excited, and the molecular gas: GRB 121024A shining through its star-forming galaxy Monthly Notices of the Royal Astronomical Society. 451: 167-183. DOI: 10.1093/Mnras/Stv960  0.534
2015 Hartoog OE, Fynbo JPU, Kaper L, Cia AD, Bagdonaite J. Galaxy counterparts of metal-rich damped Lyα absorbers: the case of J205922.4-052842 Monthly Notices of the Royal Astronomical Society. 447: 2738-2752. DOI: 10.1093/Mnras/Stu2578  0.478
2015 Japelj J, Covino S, Gomboc A, Vergani SD, Goldoni P, Selsing J, Cano Z, D'Elia V, Flores H, Fynbo JPU, Hammer F, Hjorth J, Jakobsson P, Kaper L, Kopač D, et al. Spectrophotometric analysis of gamma-ray burst afterglow extinction curves with X-Shooter Astronomy and Astrophysics. 579. DOI: 10.1051/0004-6361/201525665  0.354
2015 Krühler T, Malesani D, Fynbo JPU, Hartoog OE, Hjorth J, Jakobsson P, Perley DA, Rossi A, Schady P, Schulze S, Tanvir NR, Vergani SD, Wiersema K, Afonso PMJ, Bolmer J, ... ... Kaper L, et al. GRB hosts through cosmic time: VLT/X-Shooter emission-line spectroscopy of 96 γ -ray-burst-selected galaxies at 0.1 < z < 3.6 Astronomy and Astrophysics. 581. DOI: 10.1051/0004-6361/201425561  0.573
2015 Tramper F, Straal SM, Sanyal D, Sana H, Koter Ad, Gräfener G, Langer N, Vink JS, Mink SEd, Kaper L. Massive stars on the verge of exploding: the properties of oxygen sequence Wolf-Rayet stars Astronomy and Astrophysics. 581. DOI: 10.1051/0004-6361/201425390  0.577
2015 Hartoog OE, Malesani D, Fynbo JPU, Goto T, Krühler T, Vreeswijk PM, De Cia A, Xu D, Møller P, Covino S, D'Elia V, Flores H, Goldoni P, Hjorth J, Jakobsson P, ... ... Kaper L, et al. VLT/X-Shooter spectroscopy of the afterglow of the Swift GRB 130606A: Chemical abundances and reionisation at z ~ 6 Astronomy and Astrophysics. 580. DOI: 10.1051/0004-6361/201425001  0.563
2015 Ellerbroek LE, Benisty M, Kraus S, Perraut K, Kluska J, Le Bouquin JB, Borges Fernandes M, Domiciano De Souza A, Maaskant KM, Kaper L, Tramper F, Mourard D, Tallon-Bosc I, Ten Brummelaar T, Sitko ML, et al. A resolved, au-scale gas disk around the B[e] star HD 50138 Astronomy and Astrophysics. 573. DOI: 10.1051/0004-6361/201424143  0.499
2014 Cirasuolo M, Afonso J, Carollo M, Flores H, Maiolino R, Oliva E, Paltani S, Vanzi L, Evans C, Abreu M, Atkinson D, Babusiaux C, Beard S, Bauer F, Bellazzini M, ... ... Kaper L, et al. MOONS: The multi-object optical and near-infrared spectrograph for the vlt Proceedings of Spie - the International Society For Optical Engineering. 9147. DOI: 10.1117/12.2056012  0.556
2014 Evans CJ, Puech M, Barbuy B, Bonifacio P, Cuby JG, Guenther E, Hammer F, Jagourel P, Kaper L, Morris SL, Afonso J, Amram P, Aussel H, Basden A, Bastian N, et al. Science case and requirements for the MOSAIC concept for a multi-object spectrograph for the European Extremely Large Telescope Proceedings of Spie - the International Society For Optical Engineering. 9147. DOI: 10.1117/12.2055857  0.643
2014 Hammer F, Barbuy B, Cuby JG, Kaper L, Morris S, Evans CJ, Jagourel P, Dalton G, Rees P, Puech M, Rodrigues M, Pearson D, Disseau K. MOSAIC at the E-ELT: A multi-object spectrograph for astrophysics, IGM and cosmology Proceedings of Spie. 9147: 914727. DOI: 10.1117/12.2055148  0.575
2014 Meyer DMA, Mackey J, Langer N, Gvaramadze VV, Mignone A, Izzard RG, Kaper L. Models of the circumstellar medium of evolving, massive runaway stars moving through the Galactic plane Monthly Notices of the Royal Astronomical Society. 444: 2754-2775. DOI: 10.1093/Mnras/Stu1629  0.549
2014 Sparre M, Hartoog OE, Krühler T, Fynbo JPU, Watson DJ, Wiersema K, D'Elia V, Zafar T, Afonso PMJ, Covino S, De Ugarte Postigo A, Flores H, Goldoni P, Greiner J, Hjorth J, ... ... Kaper L, et al. The metallicity and dust content of a redshift 5 gamma-ray burst host galaxy Astrophysical Journal. 785. DOI: 10.1088/0004-637X/785/2/150  0.545
2014 Levan AJ, Tanvir NR, Starling RLC, Wiersema K, Page KL, Perley DA, Schulze S, Wynn GA, Chornock R, Hjorth J, Cenko SB, Fruchter AS, O'Brien PT, Brown GC, Tunnicliffe RL, ... ... Kaper L, et al. A new population of ultra-long duration gamma-ray bursts Astrophysical Journal. 781. DOI: 10.1088/0004-637X/781/1/13  0.594
2014 Fynbo JPU, Krühler T, Leighly K, Ledoux C, Vreeswijk PM, Schulze S, Noterdaeme P, Watson D, Wijers RAMJ, Bolmer J, Cano Z, Christensen L, Covino S, D'elia V, Flores H, ... ... Kaper L, et al. The mysterious optical afterglow spectrum of GRB 140506A at z = 0.889 Astronomy and Astrophysics. 572. DOI: 10.1051/0004-6361/201424726  0.564
2014 Tramper F, Sana H, Koter Ad, Kaper L, Ramírez-Agudelo OH. The properties of ten O-type stars in the low-metallicity galaxies IC 1613, WLM, and NGC 3109 Astronomy and Astrophysics. 572. DOI: 10.1051/0004-6361/201424312  0.545
2014 Ochsendorf BB, Verdolini S, Cox NLJ, Berné O, Kaper L, Tielens AGGM. Radiation-pressure-driven dust waves inside bursting interstellar bubbles Astronomy and Astrophysics. 566. DOI: 10.1051/0004-6361/201423545  0.481
2014 Schulze S, Malesani D, Cucchiara A, Tanvir NR, Krühler T, De Ugarte Postigo A, Leloudas G, Lyman J, Bersier D, Wiersema K, Perley DA, Schady P, Gorosabel J, Anderson JP, Castro-Tirado AJ, ... ... Kaper L, et al. GRB 120422A/SN 2012bz: Bridging the gap between low- and high-luminosity gamma-ray bursts Astronomy and Astrophysics. 566. DOI: 10.1051/0004-6361/201423387  0.527
2014 Ellerbroek LE, Podio L, Dougados C, Cabrit S, Sitko ML, Sana H, Kaper L, De Koter A, Klaassen PD, Mulders GD, Mendigutía I, Grady CA, Grankin K, Van Winckel H, Bacciotti F, et al. Relating jet structure to photometric variability: The Herbig Ae star HD 163296 Astronomy and Astrophysics. 563. DOI: 10.1051/0004-6361/201323092  0.525
2014 Pita S, Goldoni P, Boisson C, Lenain JP, Punch M, Gerard L, Hammer F, Kaper L, Sol H. Spectroscopy of high-energy BL Lacertae objects with X-shooter on the VLT Astronomy and Astrophysics. 565: 1-20. DOI: 10.1051/0004-6361/201323071  0.553
2014 Cox NLJ, Cami J, Kaper L, Ehrenfreund P, Foing BH, Ochsendorf BB, Van Hooff SHM, Salama F. VLT/X-Shooter survey of near-infrared diffuse interstellar bands Astronomy and Astrophysics. 569. DOI: 10.1051/0004-6361/201323061  0.487
2014 D'Elia V, Fynbo JPU, Goldoni P, Covino S, De Ugarte Postigo A, Ledoux C, Calura F, Gorosabel J, Malesani D, Matteucci F, Sánchez-Ramírez R, Savaglio S, Castro-Tirado AJ, Hartoog OE, Kaper L, et al. VLT/X-shooter spectroscopy of the GRB 120327A afterglow Astronomy and Astrophysics. 564. DOI: 10.1051/0004-6361/201323057  0.577
2014 De Ugarte Postigo A, Thöne CC, Rowlinson A, García-Benito R, Levan AJ, Gorosabel J, Goldoni P, Schulze S, Zafar T, Wiersema K, Sánchez-Ramírez R, Melandri A, D'Avanzo P, Oates S, D'Elia V, ... ... Kaper L, et al. Spectroscopy of the short-hard GRB 130603B: The host galaxy and environment of a compact object merger â Astronomy and Astrophysics. 563. DOI: 10.1051/0004-6361/201322985  0.604
2014 Ochsendorf BB, Cox NLJ, Krijt S, Salgado F, Berné O, Bernard JP, Kaper L, Tielens AGGM. Blowing in the wind: The dust wave around σ Orionis AB Astronomy and Astrophysics. 563. DOI: 10.1051/0004-6361/201322873  0.449
2014 Tramper F, Straal SM, Gräfener G, Kaper L, Koter Ad, Langer N, Sana HAA, Vink JS. The properties of single WO stars Proceedings of the National Academy of Sciences of the United States of America. 307: 144-145. DOI: 10.1017/S1743921314006590  0.53
2013 Sana H, van Boeckel T, Tramper F, Ellerbroek LE, de Koter A, Kaper L, Moffat AFJ, Schnurr O, Schneider FRN, Gies DR. R144 revealed as a double-lined spectroscopic binary Monthly Notices of the Royal Astronomical Society: Letters. 432. DOI: 10.1093/Mnrasl/Slt029  0.498
2013 Hartoog OE, Wiersema K, Vreeswijk PM, Kaper L, Tanvir NR, Savaglio S, Berger E, Chornock R, Covino S, D'Elia V, Flores H, Fynbo JPU, Goldoni P, Gomboc A, Melandri A, et al. The host-galaxy response to the afterglow of GRB 100901A Monthly Notices of the Royal Astronomical Society. 430: 2739-2754. DOI: 10.1093/Mnras/Stt078  0.458
2013 Thöne CC, Fynbo JPU, Goldoni P, Postigo AdU, Campana S, Vergani SD, Covino S, Krühler T, Kaper L, Tanvir N, Zafar T, D’Elia V, Gorosabel J, Greiner J, Groot P, et al. GRB 100219A with X-shooter – abundances in a galaxy at z =4.7 Monthly Notices of the Royal Astronomical Society. 428: 3590-3606. DOI: 10.1093/Mnras/Sts303  0.599
2013 Klaassen PD, Mottram JC, Longmore SN, Fuller GA, Tak FFSvd, Kaper L. High-mass star formation Astronomy & Geophysics. 54: 33-33. DOI: 10.1093/Astrogeo/Att083  0.475
2013 Xu D, De Ugarte Postigo A, Leloudas G, Krühler T, Cano Z, Hjorth J, Malesani D, Fynbo JPU, Thöne CC, Sánchez-Ramírez R, Schulze S, Jakobsson P, Kaper L, Sollerman J, Watson DJ, et al. DIscovery of the broad-lined type IC SN 2013CQ associated with the very energetic GRB 130427A Astrophysical Journal. 776. DOI: 10.1088/0004-637X/776/2/98  0.437
2013 Tramper F, Gräfener G, Hartoog OE, Sana H, Koter Ad, Vink JS, Ellerbroek LE, Langer N, Garcia M, Kaper L, Mink SEd. On the nature of WO stars: a quantitative analysis of the WO3 star DR1 in IC 1613 ? Astronomy and Astrophysics. 559. DOI: 10.1051/0004-6361/201322155  0.558
2013 Lemasle B, François P, Genovali K, Kovtyukh VV, Bono G, Inno L, Laney CD, Kaper L, Bergemann M, Fabrizio M, Matsunaga N, Pedicelli S, Primas F, Romaniello M. Galactic abundance gradients from Cepheids: α and heavy elements in the outer disk Astronomy and Astrophysics. 558. DOI: 10.1051/0004-6361/201322115  0.41
2013 Krühler T, Ledoux C, Fynbo JPU, Vreeswijk PM, Schmidl S, Malesani D, Christensen L, De Cia A, Hjorth J, Jakobsson P, Kann DA, Kaper L, Vergani SD, Afonso PMJ, Covino S, et al. Molecular hydrogen in the damped Lyman α system towards GRB 120815A at z = 2.36 Astronomy and Astrophysics. 557. DOI: 10.1051/0004-6361/201321772  0.407
2013 Ellerbroek LE, Bik A, Kaper L, Maaskant KM, Paalvast M, Tramper F, Sana H, Waters LBFM, Balog Z. RCW36 : characterizing the outcome of massive star formation Astronomy and Astrophysics. 558. DOI: 10.1051/0004-6361/201321752  0.56
2013 Henrichs HF, De Jong JA, Verdugo E, Schnerr RS, Neiner C, Donati JF, Catala C, Shorlin SLS, Wade GA, Veen PM, Nichols JS, Damen EMF, Talavera A, Hill GM, Kaper L, et al. Discovery of the magnetic field in the pulsating B star Astronomy and Astrophysics. 555. DOI: 10.1051/0004-6361/201321584  0.415
2013 Boley PA, Linz H, Van Boekel R, Henning T, Feldt M, Kaper L, Leinert C, Müller A, Pascucci I, Robberto M, Stecklum B, Waters LBFM, Zinnecker H. The VLTI/MIDI survey of massive young stellar objects: Sounding the inner regions around intermediate-and high-mass young stars using mid-infrared interferometry Astronomy and Astrophysics. 558. DOI: 10.1051/0004-6361/201321539  0.534
2013 Starkenburg E, Hill V, Tolstoy E, François P, Irwin MJ, Boschman L, Venn KA, De Boer TJL, Lemasle B, Jablonka P, Battaglia G, Groot P, Kaper L. The extremely low-metallicity tail of the Sculptor dwarf spheroidal galaxy Astronomy and Astrophysics. 549. DOI: 10.1051/0004-6361/201220349  0.497
2013 Kaper L. The Promise of Recent and Future Observatories and Instruments Arxiv: Instrumentation and Methods For Astrophysics. 9: 389-398. DOI: 10.1017/S1743921313016190  0.496
2012 Snik F, Harten Gv, Navarro R, Groot P, Kaper L, Wijn Ad. Design of a Full-Stokes Polarimeter for VLT/X-shooter Proceedings of Spie. 8446: 844625. DOI: 10.1117/12.926163  0.407
2012 Oliva E, Diolaiti E, Garilli B, Gratton R, Lorenzetti D, Schipani P, Scuderi S, Vanzella E, Cirasuolo M, Afonso J, Bender R, Bonifacio P, Kaper L, Vanzi L, Baffa C, et al. The design of the MOONS-VLT spectrometer Proceedings of Spie - the International Society For Optical Engineering. 8446. DOI: 10.1117/12.925309  0.343
2012 Evans CJ, Barbuy B, Bonifacio P, Chemla F, Cuby JG, Dalton GB, Davies B, Disseau K, Dohlen K, Flores H, Gendron E, Guinouard I, Hammer F, Hastings P, Horville D, ... ... Kaper L, et al. Multi-object spectroscopy with the European ELT: Scientific synergies between EAGLE & EVE Proceedings of Spie - the International Society For Optical Engineering. 8446. DOI: 10.1117/12.924819  0.348
2012 Grunhut JH, Wade GA, Sundqvist JO, ud-Doula A, Neiner C, Ignace R, Marcolino WLF, Rivinius TH, Fullerton A, Kaper L, Mauclaire B, Buil C, Garrel T, Ribeiro J, Ubaud S. Investigating the spectroscopic, magnetic and circumstellar variability of the O9 subgiant star HD57682 Monthly Notices of the Royal Astronomical Society. 426: 2208-2227. DOI: 10.1111/J.1365-2966.2012.21799.X  0.391
2012 Wiersema K, Curran PA, Krühler T, Melandri A, Rol E, Starling RLC, Tanvir NR, van der Horst AJ, Covino S, Fynbo JPU, Goldoni P, Gorosabel J, Hjorth J, Klose S, Mundell CG, ... ... Kaper L, et al. Detailed optical and near-infrared polarimetry, spectroscopy and broad-band photometry of the afterglow of GRB 091018: Polarization evolution Monthly Notices of the Royal Astronomical Society. 426: 2-22. DOI: 10.1111/J.1365-2966.2012.20943.X  0.368
2012 Hartoog OE, Sana H, Koter Ad, Kaper L. First Very Large Telescope/X-shooter spectroscopy of early-type stars outside the Local Group Monthly Notices of the Royal Astronomical Society. 422: 367-378. DOI: 10.1111/J.1365-2966.2012.20615.X  0.539
2012 Bagdonaite J, Murphy MT, Kaper L, Ubachs W. Constraint on a variation of the proton‐to‐electron mass ratio from H2 absorption towards quasar Q2348−011 Monthly Notices of the Royal Astronomical Society. 421: 419-425. DOI: 10.1111/J.1365-2966.2011.20319.X  0.388
2012 Kaur R, Kaper L, Ellerbroek LE, Russell DM, Altamirano D, Wijnands R, Yang YJ, D'Avanzo P, De Ugarte Postigo A, Flores H, Fynbo JPU, Goldoni P, Thöne CC, Van Der Horst A, Van Der Klis M, et al. Very large telescope/X-shooter spectroscopy of the candidate black hole X-ray binary maxi J1659-152 in outburst Astrophysical Journal Letters. 746. DOI: 10.1088/2041-8205/746/2/L23  0.535
2012 Bufano F, Pian E, Sollerman J, Benetti S, Pignata G, Valenti S, Covino S, D'Avanzo P, Malesani D, Cappellaro E, Della Valle M, Fynbo J, Hjorth J, Mazzali PA, Reichart DE, ... ... Kaper L, et al. The highly energetic expansion of SN 2010bh associated with GRB 100316D Astrophysical Journal. 753. DOI: 10.1088/0004-637X/753/1/67  0.532
2012 Van Der Horst AJ, Kouveliotou C, Gorgone NM, Kaneko Y, Baring MG, Guiriec S, Göǧü E, Granot J, Watts AL, Lin L, Bhat PN, Bissaldi E, Chaplin VL, Finger MH, Gehrels N, ... ... Kaper L, et al. SGRJ1550-5418 bursts detected with the Fermi Gamma-ray Burst Monitor during its most prolific activity Astrophysical Journal. 749. DOI: 10.1088/0004-637X/749/2/122  0.445
2012 Martins F, Bergemann M, Bestenlehner JM, Crowther PA, Hamann WR, Najarro F, Nieva MF, Przybilla N, Freimanis J, Hou W, Kaper L. SpS5 - II. Stellar and wind parameters Iau Symposia. 10: 420-428. DOI: 10.1017/S1743921314011788  0.485
2012 Vink JS, Heger A, Krumholz MR, Puls J, Banerjee S, Castro N, Chen KJ, Chene AN, Crowther PA, Daminelli A, Grafener G, Groh JH, Hamann WR, Heap S, Herrero A, ... Kaper L, et al. Very Massive Stars in the local Universe Arxiv: Solar and Stellar Astrophysics. 10: 51-79. DOI: 10.1017/S1743921314004657  0.514
2011 Weerdenburg Fv, Murphy MT, Malec AL, Kaper L, Ubachs WMG. First constraint on cosmological variation of the proton-to-electron mass ratio from two independent telescopes Physical Review Letters. 106: 180802. PMID 21635080 DOI: 10.1103/Physrevlett.106.180802  0.474
2011 Fynbo JPU, Ledoux C, Noterdaeme P, Christensen L, Møller P, Durgapal AK, Goldoni P, Kaper L, Krogager JK, Laursen P, Maund JR, Milvang-Jensen B, Okoshi K, Rasmussen PK, Thorsen TJ, et al. Galaxy counterparts of metal-rich damped Lyα absorbers - II. A solar-metallicity and dusty DLA at zabs= 2.58 Monthly Notices of the Royal Astronomical Society. 413: 2481-2488. DOI: 10.1111/J.1365-2966.2011.18318.X  0.372
2011 Tramper F, Sana H, Koter Ad, Kaper L. On the Mass-loss Rate of Massive Stars in the Low-metallicity Galaxies IC 1613, WLM, and NGC 3109 The Astrophysical Journal. 741. DOI: 10.1088/2041-8205/741/1/L8  0.5
2011 Van De Sande J, Kriek M, Franx M, Van Dokkum PG, Bezanson R, Whitaker KE, Brammer G, Labbé I, Groot PJ, Kaper L. The stellar velocity dispersion of a compact massive galaxy at z = 1.80 using X-shooter: Confirmation of the evolution in the mass-size and mass-dispersion relations Astrophysical Journal Letters. 736. DOI: 10.1088/2041-8205/736/1/L9  0.549
2011 Sparre M, Sollerman J, Fynbo JPU, Malesani D, Goldoni P, De Ugarte Postigo A, Covino S, D'Elia V, Flores H, Hammer F, Hjorth J, Jakobsson P, Kaper L, Leloudas G, Levan AJ, et al. Spectroscopic evidence for SN 2010ma associated with GRB 101219B Astrophysical Journal Letters. 735. DOI: 10.1088/2041-8205/735/1/L24  0.528
2011 Ellerbroek LE, Kaper L, Bik A, Koter Ad, Horrobin M, Puga E, Sana H, Waters LBFM. The Intermediate-mass Young Stellar Object 08576nr292: discovery of a disk-jet system The Astrophysical Journal. 732. DOI: 10.1088/2041-8205/732/1/L9  0.535
2011 Lin L, Kouveliotou C, Baring MG, Van Der Horst AJ, Guiriec S, Woods PM, Göüş E, Kaneko Y, Scargle J, Granot J, Preece R, Von Kienlin A, Chaplin V, Watts AL, Wijers RAMJ, ... ... Kaper L, et al. Fermi/gamma-ray burst monitor observations of SGRJ0501+4516 bursts Astrophysical Journal. 739. DOI: 10.1088/0004-637X/739/2/87  0.417
2011 Ochsendorf BB, Ellerbroek LE, Chini R, Hartoog OE, Hoffmeister V, Waters LBFM, Kaper L. First firm spectral classification of an early-B pre-main-sequence star: B275 in M 17 Astronomy and Astrophysics. 536. DOI: 10.1051/0004-6361/201118089  0.556
2011 Vernet J, Dekker H, D'Odorico S, Kaper L, Kjaergaard P, Hammer F, Randich S, Zerbi F, Groot PJ, Hjorth J, Guinouard I, Navarro R, Adolfse T, Albers PW, Amans JP, et al. X-shooter, the new wide band intermediate resolution spectrograph at the ESO Very Large Telescope Astronomy and Astrophysics. 536. DOI: 10.1051/0004-6361/201117752  0.4
2011 Vergani SD, Flores H, Covino S, Fugazza D, Gorosabel J, Levan AJ, Puech M, Salvaterra R, Tello JC, De Ugarte Postigo A, D'Avanzo P, D'Elia V, Fernández M, Fynbo JPU, Ghirlanda G, ... ... Kaper L, et al. GRB 091127/SN 2009nz and the VLT/X-shooter spectroscopy of its host galaxy: Probing the faint end of the mass-metallicity relation Astronomy and Astrophysics. 535. DOI: 10.1051/0004-6361/201117726  0.478
2011 Taylor WD, Evans CJ, Sana HAA, Walborn NR, Mink SEd, Stroud VE, Alvarez-Candal A, Barbá RH, Bestenlehner JM, Bonanos AZ, Brott I, Crowther PA, Koter Ad, Friedrich K, Gräfener G, ... ... Kaper L, et al. The VLT-FLAMES Tarantula Survey. II. R139 revealed as a massive binary system Astronomy and Astrophysics. 530. DOI: 10.1051/0004-6361/201116785  0.437
2011 Maaskant KM, Bik A, Waters LBFM, Kaper L, Henning T, Puga E, Horrobin M, Kainulainen J. Sequential star formation in IRAS 06084-0611 (GGD 12-15) - From intermediate-mass to high-mass stars Astronomy and Astrophysics. 531. DOI: 10.1051/0004-6361/201116743  0.581
2011 Vos D, Cox N, Kaper L, Spaans M, Ehrenfreund P. Diffuse interstellar bands in Upper Scorpius: probing variations in the DIB spectrum due to changing environmental conditions Astronomy and Astrophysics. 533: 129. DOI: 10.1051/0004-6361/200809746  0.364
2011 Kaper L, Ellerbroek LE, Ochsendorf BB, Pouroutidou RNC. Studying the formation of massive stars with VLT/X-shooter Astronomische Nachrichten. 332: 232-237. DOI: 10.1002/Asna.201111524  0.609
2010 Navarro R, Chemla F, Bonifacio P, Flores H, Guinouard I, Huet JM, Puech M, Royer F, Pragt JH, Wulterkens G, Sawyer EC, Caldwell ME, Tosh IAJ, Whalley MS, Woodhouse GFW, ... ... Kaper L, et al. Project overview of OPTIMOS-EVE: The fibre-fed multi-object spectrograph for the E-ELT Proceedings of Spie - the International Society For Optical Engineering. 7735. DOI: 10.1117/12.857638  0.437
2010 Chemla F, Dalton G, Guinouard I, Pragt J, Sawyer E, Spanò P, Tosh IA, Andersen MI, Navarro R, Hammer F, Kaper L. OPTIMOS-EVE design trade-off analysis Proceedings of Spie. 7735. DOI: 10.1117/12.857519  0.306
2010 Vernet J, Dekker H, D'Odorico S, Mason E, Marcantonio PD, Downing M, Elswijk E, Finger G, Fischer G, Kerber F, Kern L, Lizon J-, Lucuix C, Mainieri V, Modigliani A, ... ... Kaper L, et al. Performances of X-shooter, the new wide-band intermediate resolution spectrograph at the VLT Proceedings of Spie. 7735. DOI: 10.1117/12.857124  0.333
2010 Fynbo JPU, Laursen P, Ledoux C, Moller P, Durgapal AK, Goldoni P, Gullberg B, Kaper L, Maund J, Noterdaeme P, Östlin G, Strandet ML, Toft S, Vreeswijk PM, Zafar T. Galaxy counterparts of metal-rich damped Lyα absorbers – I. The case of the z= 2.35 DLA towards Q 2222−0946 Monthly Notices of the Royal Astronomical Society. 408: 2128-2136. DOI: 10.1111/J.1365-2966.2010.17294.X  0.5
2010 Malec AL, Buning R, Murphy MT, Milutinovic N, Ellison SL, Prochaska JX, Kaper L, Tumlinson J, Carswell RF, Ubachs W. Keck telescope constraint on cosmological variation of the proton-to-electron mass ratio Monthly Notices of the Royal Astronomical Society. 403: 1541-1555. DOI: 10.1111/J.1365-2966.2009.16227.X  0.443
2010 Bik A, Puga E, Waters LBFM, Horrobin M, Henning T, Vasyunina T, Beuther H, Linz H, Kaper L, Van Den Ancker M, Lenorzer A, Churchwell E, Kurtz S, Kouwenhoven MBN, Stolte A, et al. Sequential star formation in RCW 34: A spectroscopic census of the stellar content of high-mass star-forming regions Astrophysical Journal. 713: 883-899. DOI: 10.1088/0004-637X/713/2/883  0.576
2010 De Ugarte Postigo A, Goldoni P, Thöne CC, Vergani SD, D'Elia V, Piranomonte S, Malesani D, Covino S, Flores H, Fynbo JPU, Hjorth J, Wijers RAMJ, D'Odorico S, Hammer F, Kaper L, et al. GRB 090313: X-shooter's first shot at a gamma-ray burst Astronomy and Astrophysics. 513. DOI: 10.1051/0004-6361/200913113  0.522
2009 Caballero-Nieves SM, Gies DR, Bolton CT, Hadrava P, Herrero A, Hillwig TC, Howell SB, Huang W, Kaper L, Koubský P, McSwain MV. The ultraviolet spectrum and physical properties of the mass donor star in hd 226868 = cygnus X-1 Astrophysical Journal. 701: 1895-1905. DOI: 10.1088/0004-637X/701/2/1895  0.54
2009 Kouwenhoven MBN, Brown AGA, Goodwin SP, Zwart SFP, Kaper L. Exploring the consequences of pairing algorithms for binary stars Astronomy and Astrophysics. 493: 979-1016. DOI: 10.1051/0004-6361:200810234  0.529
2009 Malec AL, Buning R, Murphy MT, Milutinovic N, Ellison SL, Prochaska JX, Kaper L, Tumlinson J, Carswell RF, Ubachs W. New limit on a varying proton-to-electron mass ratio from high-resolution optical quasar spectra Proceedings of the International Astronomical Union. 5: 321-321. DOI: 10.1017/S1743921310009580  0.459
2008 Vernet J, Kerber F, Saitta F, Mainieri V, D'Odorico S, Lidman C, Mason E, Bohlin RC, Rauch T, Ivanov VD, Smette A, Walsh JR, Fosbury RAE, Goldoni P, Groot P, ... ... Kaper L, et al. Building up a database of spectro-photometric standard stars from the UV to the near-IR: A status report Proceedings of Spie - the International Society For Optical Engineering. 7016. DOI: 10.1117/12.788676  0.459
2008 Williams SJ, Gies DR, Henry TJ, Orosz JA, McSwain MV, Hillwig TC, Penny LR, Sonneborn G, Iping R, Van Der Hucht KA, Kaper L. Dynamical masses for the large magellanic cloud massive binary system [L72] LH 54-425 Astrophysical Journal. 682: 492-498. DOI: 10.1086/589687  0.442
2008 Gies DR, Bolton CT, Blake RM, Caballero-Nieves SM, Crenshaw DM, Hadrava P, Herrero A, Hillwig TC, Howell SB, Huang W, Kaper L, Koubský P, Mcswain MV. Stellar wind variations during the X-ray high and low states of Cygnus X-1 Astrophysical Journal. 678: 1237-1247. DOI: 10.1086/586690  0.429
2008 Henrichs HF, Schnerr RS, Jong JAd, Kaper L, Donati J-, Catala C. Search for the magnetic field of the O7.5 III star ξ Persei Arxiv: Astrophysics. 4: 383-384. DOI: 10.1017/S1743921309030774  0.435
2008 Kouwenhoven MBN, Brown AGA, Goodwin SP, Zwart SFP, Kaper L. Pairing mechanisms for binary stars Astronomische Nachrichten. 329: 984-987. DOI: 10.1002/Asna.200811061  0.509
2007 Apai D, Bik A, Kaper L, Henning T, Zinnecker H. Massive binaries in high-mass star-forming regions: A multiepoch radial velocity survey of embedded O stars Astrophysical Journal. 655: 484-491. DOI: 10.1086/509705  0.559
2007 Kouwenhoven MBN, Brown AGA, Zwart SFP, Kaper L. The primordial binary population. II. Recovering the binary population for intermediate mass stars in Scorpius OB2 Astronomy and Astrophysics. 474: 77-104. DOI: 10.1051/0004-6361:20077719  0.508
2007 Meer Avd, Kaper L, Kerkwijk MHv, Heemskerk MHM, Heuvel EPJvd. Determination of the mass of the neutron star in SMC X-1, LMC X-4, and Cen X-3 with VLT/UVES Astronomy and Astrophysics. 473: 523-538. DOI: 10.1051/0004-6361:20066025  0.548
2007 Cox NLJ, Boudin N, Foing BH, Schnerr RS, Kaper L, Neiner C, Henrichs HF, Donati JF, Ehrenfreund P. Linear and circular polarisation of diffuse interstellar bands Astronomy and Astrophysics. 465: 899-906. DOI: 10.1051/0004-6361:20065278  0.388
2007 Cox NLJ, Cordiner MA, Ehrenfreund P, Kaper L, Sarre PJ, Foing BH, Spaans M, Cami J, Sofia UJ, Clayton CG, Gordon KD, Salama F. Interstellar gas, dust and diffuse bands in the SMC Astronomy and Astrophysics. 470: 941-955. DOI: 10.1051/0004-6361:20065261  0.454
2007 Kouwenhoven MBN, Brown AGA, Kaper L. A brown dwarf desert for intermediate mass stars in Scorpius OB2 Astronomy and Astrophysics. 464: 581-599. DOI: 10.1051/0004-6361:20054396  0.542
2006 D'Odorico S, Dekker H, Mazzoleni R, Vernet J, Guinouard I, Groot P, Hammer F, Rasmussen PK, Kaper L, Navarro R, Pallavicini R, Peroux C, Zerbi FM. X-shooter UV- to K-band intermediate-resolution high-efficiency spectrograph for the VLT: status report at the final design review Proceedings of Spie. 6269: 626933. DOI: 10.1117/12.672969  0.37
2006 Navarro R, Elswijk E, De Haan M, Hanenburg H, Horst RT, Kleszcz P, Kragt J, Pragt J, Rigal F, Roelfsema R, Schoenmaker T, Tromp N, Venema L, Groot P, Kaper L. X-shooter near-IR spectrograph arm: Design and manufacturing methods Proceedings of Spie - the International Society For Optical Engineering. 6273. DOI: 10.1117/12.670549  0.374
2006 Kaper L, Meer Avd, Najarro F. VLT/UVES spectroscopy of Wray 977, the hypergiant companion to the X-ray pulsar GX301-2 Astronomy and Astrophysics. 457: 595-610. DOI: 10.1051/0004-6361:20065393  0.536
2006 Vreeswijk PM, Smette A, Fruchter AS, Palazzi E, Rol E, Wijers RAMJ, Kouveliotou C, Kaper L, Pian E, Masetti N, Frontera F, Hjorth J, Gorosabel J, Piro L, Fynbo JPU, et al. Low-resolution VLT spectroscopy of GRBs 991216, 011211 and 021211 Astronomy and Astrophysics. 447: 145-156. DOI: 10.1051/0004-6361:20053795  0.571
2006 Cox NLJ, Cordiner MA, Cami J, Foing BH, Sarre PJ, Kaper L, Ehrenfreund P. The large magellanic cloud: Diffuse interstellar bands, atomic lines and the local environmental conditions Astronomy and Astrophysics. 447: 991-1009. DOI: 10.1051/0004-6361:20053367  0.453
2006 Bik A, Kaper L, Waters L. VLT K-band spectroscopy of massive young stellar objects in (ultra-)compact HII regions Astronomy and Astrophysics. 455: 561-576. DOI: 10.1051/0004-6361:20042403  0.549
2005 Horst AJvd, Rol E, Wijers RAMJ, Strom R, Kaper L, Kouveliotou C. The Radio Afterglow Of Grb 030329 At Centimeter Wavelengths: Evidence For A Structured Jet Or Nonrelativistic Expansion The Astrophysical Journal. 634: 1166-1172. DOI: 10.1086/497021  0.366
2005 Rol E, Wijers RAMJ, Kouveliotou C, Kaper L, Kaneko Y. How Special Are Dark Gamma-Ray Bursts: A Diagnostic Tool The Astrophysical Journal. 624: 868-879. DOI: 10.1086/429082  0.465
2005 Masetti N, Palazzi E, Pian E, Hunt L, Fynbo JPU, Gorosabel J, Klose S, Benetti S, Falomo R, Zeh A, Amati L, Andersen MI, Castro-Tirado AJ, Cerón JMC, Danziger J, ... ... Kaper L, et al. Late-epoch optical and near-infrared observations of the GRB 000911 afterglow and its host galaxy Astronomy and Astrophysics. 438: 841-853. DOI: 10.1051/0004-6361:20052763  0.506
2005 Kouwenhoven MBN, Brown AGA, Zinnecker H, Kaper L, Zwart SFP. The primordial binary population. I. A near-infrared adaptive optics search for close visual companions to A star members of Scorpius OB2 Astronomy and Astrophysics. 430: 137-154. DOI: 10.1051/0004-6361:20048124  0.586
2005 Bik A, Kaper L, Hanson MM, Smits M. VLT K-band spectroscopy of massive stars deeply embedded in IRAS sources with UCHII colours Astronomy and Astrophysics. 440: 121-137. DOI: 10.1051/0004-6361:20042597  0.752
2005 Cox NLJ, Kaper L, Foing BH, Ehrenfreund P. Diffuse interstellar bands of unprecedented strength in the line of sight towards high-mass X-ray binary 4U 1907+09 Astronomy & Astrophysics. 438: 187-199. DOI: 10.1051/0004-6361:20042340  0.49
2005 Sollerman J, Cox NLJ, Mattila S, Ehrenfreund P, Kaper L, Leibundgut B, Lundqvist P. Diffuse Interstellar Bands in NGC 1448 Astronomy and Astrophysics. 429: 559-567. DOI: 10.1051/0004-6361:20041465  0.489
2005 Meer Avd, Kaper L, Salvo Td, Mendez M, Klis Mvd, Barr P, Trams NR. XMM-Newton X-ray spectroscopy of the high-mass X-ray binary 4U 1700-37 at low flux Astronomy and Astrophysics. 432: 999-1012. DOI: 10.1051/0004-6361:20041288  0.488
2005 Cox NLJ, Kaper L, Mokiem MR. VLT/UVES spectroscopy of the O supergiant companion to 4U 1907+09(7) Astronomy and Astrophysics. 436: 661-669. DOI: 10.1051/0004-6361:20040511  0.502
2005 Ruiterkamp R, Cox N, Spaans M, Kaper L, Foing B, Salama F, Ehrenfreund P. PAH charge state distribution and DIB carriers: Implications from the line of sight toward HD 147889 , Astronomy and Astrophysics. 432: 515-529. DOI: 10.1051/0004-6361:20040331  0.357
2005 Bik A, Kaper L, Thi W, Waters R. Massive young stellar objects in high-mass star-forming regions Arxiv: Astrophysics. 1: 53-58. DOI: 10.1017/S1743921305004357  0.735
2005 Ehrenfreund P, Cox N, Cami J, Foing B, Kaper L, d’Hendecourt L, Maier J, Salama F, Sarre P, Snow T, Sonnentrucker P. Magellanic Diffuse Interstellar Bands and Carbon Chemistry Highlights of Astronomy. 13: 864-866. DOI: 10.1017/S1539299600017342  0.48
2004 D'Odorico S, Andersen MI, Conconi P, Caprio VD, Delabre B, Marcantonio PD, Dekker H, Downing MD, Finger G, Groot P, Hanenburg HH, Hammer F, Horville D, Hjorth J, Kaper L, et al. X-shooter: UV-to-IR intermediate-resolution high-efficiency spectrograph for the ESO VLT Proceedings of Spie. 5492: 220-229. DOI: 10.1117/12.550005  0.476
2004 Unruh YC, Donati JF, Oliveira JM, Cameron AC, Catala C, Henrichs HF, Johns-Krull CM, Foing B, Hao J, Cao H, Landstreet JD, Stempels HC, De Jong JA, Telting J, Walton N, ... ... Kaper L, et al. Multisite observations of SU aurigae Monthly Notices of the Royal Astronomical Society. 348: 1301-1320. DOI: 10.1111/J.1365-2966.2004.07445.X  0.404
2004 Klose S, Greiner J, Rau A, Henden AA, Hartmann DH, Zeh A, Ries C, Masetti N, Malesani D, Guenther E, Gorosabel J, Stecklum B, Antonelli LA, Brinkworth C, Castro Cerón JM, ... ... Kaper L, et al. Probing a gamma-ray burst progenitor at a redshift of z = 2: A comprehensive observing campaign of the afterglow of GRB 030226 Astronomical Journal. 128: 1942-1954. DOI: 10.1086/424539  0.567
2004 Hillwig TC, Gies DR, Huang W, McSwain MV, Stark MA, Van Der Meer A, Kaper L. Identification of the mass donor star's spectrum in SS 433 Astrophysical Journal. 615: 422-431. DOI: 10.1086/423927  0.524
2004 McSwain MV, Gies DR, Huang W, Wiita PJ, Wingert DW, Kaper L. The N enrichment and supernova ejection of the runaway microquasar LS 5039 Astrophysical Journal. 600: 927-938. DOI: 10.1086/379892  0.529
2004 Schröder SE, Kaper L, Lamers HJGLM, Brown AGA. On the Hipparcos parallaxes of O stars Astronomy and Astrophysics. 428: 149-157. DOI: 10.1051/0004-6361:20047185  0.453
2004 Vreeswijk PM, Ellison SL, Ledoux C, Wijers RAMJ, Fynbo JPU, Møller P, Henden A, Hjorth J, Masi G, Rol E, Jensen BL, Tanvir N, Levan A, Castro Cerón JM, Gorosabel J, ... ... Kaper L, et al. The host of GRB 030323 at z = 3.372: A very high column density DLA system with a low metallicity Astronomy and Astrophysics. 419: 927-940. DOI: 10.1051/0004-6361:20040086  0.484
2004 Gorosabel J, Rol E, Covino S, Castro-Tirado AJ, Cerón JMC, Lazzati D, Hjorth J, Malesani D, Della Valle M, Di Serego Alighieri S, Fiore F, Fruchter AS, Fynbo JPU, Ghisellini G, Goldoni P, ... ... Kaper L, et al. GRB 020813: Polarization in the case of a smooth optical decay Astronomy and Astrophysics. 422: 113-119. DOI: 10.1051/0004-6361:20034409  0.352
2004 Lenorzer A, Bik A, Koter Ad, Kurtz SE, Waters LBFM, Kaper L, Jones CE, Geballe TR. The peculiar circumstellar environment of NGC 2024 IRS2 Astronomy and Astrophysics. 414: 245-259. DOI: 10.1051/0004-6361:20031580  0.538
2004 Brown JC, Barrett RK, Oskinova LM, Owocki SP, Hamann WR, De Jong JA, Kaper L, Henrichs HF. Inference of hot star density stream properties from data on rotationally recurrent DACs Astronomy and Astrophysics. 413: 959-979. DOI: 10.1051/0004-6361:20031557  0.367
2004 Kaper L, Meer AVd, Tijani AH. High-mass x-ray binaries and OB runaway stars Revista Mexicana De Astronomia Y Astrofisica. 21: 128-131. DOI: 10.1007/978-94-015-9723-4_10  0.49
2004 Kouwenhoven MBN, Brown AGA, Gualandris A, Kaper L, Zwart SFP, Zinnecker H. The primordial binary population in ob associations Revista Mexicana De Astronomia Y Astrofisica. 21: 289-294. DOI: 10.1007/978-3-540-74745-1_36  0.436
2003 Hjorth J, Sollerman J, Møller P, Fynbo JP, Woosley SE, Kouveliotou C, Tanvir NR, Greiner J, Andersen MI, Castro-Tirado AJ, Castro Cerón JM, Fruchter AS, Gorosabel J, Jakobsson P, Kaper L, et al. A very energetic supernova associated with the gamma-ray burst of 29 March 2003. Nature. 423: 847-50. PMID 12815425 DOI: 10.1038/Nature01750  0.752
2003 Hjorth J, Møller P, Gorosabel J, Fynbo JPU, Toft S, Jaunsen AO, Kaas AA, Pursimo T, Torii K, Kato T, Yamaoka H, Yoshida A, Thomsen B, Andersen MI, Burud I, ... ... Kaper L, et al. Very high column density and small reddening toward GRB 020124 at z = 3.20 Astrophysical Journal. 597: 699-705. DOI: 10.1086/378493  0.51
2003 Castro-Tirado AJ, Gorosabel J, Guziy S, Reverte D, Cerón JMC, Postigo AdU, Tanvir N, Mereghetti S, Tiengo A, Buckle J, Sagar R, Pandey SB, Mohan V, Masetti N, Mannucci F, ... ... Kaper L, et al. GRB 030227: The first multiwavelength afterglow of an INTEGRAL GRB Astronomy and Astrophysics. 411: 315-319. DOI: 10.1051/0004-6361:20031393  0.397
2003 Gorosabel J, Klose S, Christensen L, Fynbo JPU, Hjorth J, Greiner J, Tanvir N, Jensen BL, Pedersen H, Holland ST, Lund N, Jaunsen AO, Castro Cerón JM, Castro-Tirado AJ, Fruchter A, ... ... Kaper L, et al. The blue host galaxy of the red GRB 000418 Astronomy and Astrophysics. 409: 123-133. DOI: 10.1051/0004-6361:20031047  0.558
2003 Hammerschlag-Hensberge G, Kerkwijk MHv, Kaper L. The radial velocity curve of HD 153919 (4U 1700-37) revisited ? Astronomy and Astrophysics. 407: 685-690. DOI: 10.1051/0004-6361:20030962  0.454
2003 Rol E, Wijers RAMJ, Fynbo JPU, Hjorth J, Gorosabel J, Egholm MP, Cerón JMC, Castro-Tirado AJ, Kaper L, Masetti N, Palazzi E, Pian E, Tanvir N, Vreeswijk P, Kouveliotou C, et al. Variable polarization in the optical afterglow of GRB 021004 Astronomy and Astrophysics. 405. DOI: 10.1051/0004-6361:20030731  0.35
2003 Martín-Hernández NL, Bik A, Kaper L, Tielens AGGM, Hanson MM. A VLT spectroscopic study of the ultracompact H ii region G29.96 0.02 Astronomy and Astrophysics. 405: 175-188. DOI: 10.1051/0004-6361:20030631  0.737
2003 Masetti N, Palazzi E, Pian E, Simoncelli A, Hunt LK, Maiorano E, Levan AJ, Christensen L, Rol E, Savaglio S, Falomo R, Castro-Tirado AJ, Hjorth J, Delsanti A, Pannella M, ... ... Kaper L, et al. Optical and near-infrared observations of the GRB020405 afterglow ? Astronomy and Astrophysics. 404: 465-481. DOI: 10.1051/0004-6361:20030491  0.522
2003 Bik A, Lenorzer A, Kaper L, Comerón F, Waters L, Koter Ad, Hanson M. Identification of the ionizing source of NGC 2024 Astronomy and Astrophysics. 404: 249-254. DOI: 10.1051/0004-6361:20030301  0.767
2003 Gorosabel J, Christensen L, Hjorth J, Fynbo JU, Pedersen H, Jensen BL, Andersen MI, Lund N, Jaunsen AO, Cerón JMC, Castro-Tirado AJ, Fruchter A, Greiner J, Pian E, Vreeswijk PM, ... ... Kaper L, et al. A multi-colour study of the dark GRB 000210 host galaxy and its environment Astronomy and Astrophysics. 400: 127-136. DOI: 10.1051/0004-6361:20021907  0.56
2003 García-Alvarez D, Foing BH, Montes D, Oliveira J, Doyle JG, Messina S, Lanza AF, Rodonò M, Abbott J, Ash TDC, Baldry IK, Bedding TR, Buckley DAH, Cami J, Cao H, ... ... Kaper L, et al. Simultaneous optical and X-ray observations of flares and rotational modulation on the RS CVn binary HR 1099 (V711 Tau) from the MUSICOS 1998 campaign Astronomy and Astrophysics. 397: 285-303. DOI: 10.1051/0004-6361:20021481  0.436
2003 Bik A, Lenorzer A, Kaper L, de Koter A, Waters R, Comerón F, Hanson MM. On the ionizing source of the Flame Nebula (NGC 2024) Symposium - International Astronomical Union. 212: 541-542. DOI: 10.1017/S007418090021276X  0.389
2003 Hanson MM, Kaper L, Bik A, Comerón F, Puls J, Jokuthy A, Kudritzki R. Stellar content of obscured compact H II regions Symposium - International Astronomical Union. 212: 467-473. DOI: 10.1017/S0074180900212655  0.457
2003 Kaper L. Gamma-ray bursts: the most powerful cosmic explosions Symposium - International Astronomical Union. 212: 106-114. DOI: 10.1017/S0074180900211704  0.53
2002 Ehrenfreund P, Cami J, Jiménez-Vicente J, Foing BH, Kaper L, Van der Meer A, Cox N, D'Hendecourt L, Maier JP, Salama F, Sarre PJ, Snow TP, Sonnentrucker P. Detection of diffuse interstellar bands in the Magellanic Clouds Astrophysical Journal. 576: L117-L120. DOI: 10.1086/343731  0.445
2002 Clark JS, Goodwin S, Crowther P, Kaper L, Fairbairn M, Langer N, Brocksopp C. Physical parameters of the high-mass X-ray binary 4U1700-37 Astronomy and Astrophysics. 392: 909-920. DOI: 10.1051/0004-6361:20021184  0.469
2002 Castro Cerón JM, Castro-Tirado AJ, Gorosabel J, Hjorth J, Fynbo JU, Jensen BL, Pedersen H, Andersen MI, López-Corredoira M, Suárez O, Grosdidier Y, Casares J, Pérez-Ramírez D, Milvang-Jensen B, Mallén-Ornelas G, ... ... Kaper L, et al. The bright optical afterglow of the long GRB 001007 Astronomy and Astrophysics. 393: 445-451. DOI: 10.1051/0004-6361:20021010  0.436
2002 Neiner C, Hubert A-, Floquet M, Jankov S, Henrichs HF, Foing B, Oliveira J, Orlando S, Abbott J, Baldry IK, Bedding TR, Cami J, Cao H, Catala C, Cheng KP, ... ... Kaper L, et al. Non-radial pulsation, rotation and outburst in the Be star omega Orionis from the MuSiCoS 1998 campaign Astronomy and Astrophysics. 388: 899-916. DOI: 10.1051/0004-6361:20020522  0.478
2002 Lenorzer A, Vandenbussche B, Morris P, Koter Ad, Geballe T, Waters L, Hony S, Kaper L. An atlas of 2.4 to 4.1 $\mu$m ISO/SWS spectra of early-type stars Astronomy and Astrophysics. 384: 473-490. DOI: 10.1051/0004-6361:20020032  0.531
2002 Huthoff F, Kaper L. On the absence of wind bow-shocks around OB-runaway stars: Probing the physical conditions of the interstellar medium Astronomy and Astrophysics. 383: 999-1010. DOI: 10.1051/0004-6361:20011793  0.419
2002 Gorosabel J, Fynbo JU, Hjorth J, Wolf C, Andersen MI, Pedersen H, Christensen L, Jensen BL, Møller P, Afonso J, Treyer MA, Mallén-Ornelas G, Castro-Tirado AJ, Fruchter A, Greiner J, ... ... Kaper L, et al. Strategies for prompt searches for GRB afterglows: The discovery of the GRB 001011 optical/near-infrared counterpart using colour-colour selection Astronomy and Astrophysics. 384: 11-23. DOI: 10.1051/0004-6361:20011598  0.48
2001 Thaller ML, Gies DR, Fullerton AW, Kaper L, Wiemker R. A spectroscopic search for colliding stellar winds in O-type close binary systems. V. HD 149404 Astrophysical Journal. 554: 1070-1078. DOI: 10.1086/321409  0.502
2001 Penny LR, Seyle D, Gies DR, Harvin JA, Bagnuolo WG, Thaller ML, Fullerton AW, Kaper L. Tomographic separation of composite spectra. VII. The physical properties of the massive triple system HD 135240 (δ circini) Astrophysical Journal. 548: 889-899. DOI: 10.1086/319031  0.462
2001 Vreeswijk PM, Fruchter A, Kaper L, Rol E, Galama TJ, Paradijs Jv, Kouveliotou C, Wijers RAMJ, Pian E, Palazzi E, Masetti N, Frontera F, Savaglio S, Reinsch K, Hessman FV, et al. VLT Spectroscopy of GRB 990510 and GRB 990712: Probing the Faint and Bright Ends of the Gamma-Ray Burst Host Galaxy Population* The Astrophysical Journal. 546: 672-680. DOI: 10.1086/318308  0.586
2001 Vreeswijk PM, Fender RP, Garrett MA, Tingay SJ, Fruchter AS, Kaper L. The star-formation rate in the host of GRB 990712 Astronomy and Astrophysics. 380. DOI: 10.1051/0004-6361:20011484  0.542
2001 Barziv O, Kaper L, Kerkwijk MHv, Telting JH, Paradijs JAv. The mass of the neutron star in Vela X-1 Astronomy and Astrophysics. 377: 925-944. DOI: 10.1051/0004-6361:20011122  0.519
2001 Gunawan DYAS, Hucht KAvd, Williams PM, Henrichs HF, Kaper L, Stickland DJ, Wamsteker W. Multi-frequency variations of the Wolf-Rayet system HD 193793 (WC7pd + O4-5). III. IUE observations. Astronomy and Astrophysics. 376: 460-475. DOI: 10.1051/0004-6361:20010879  0.449
2001 Loon JTv, Kaper L, Hammerschlag-Hensberge G. Modelling the orbital modulation of ultraviolet resonance lines in high-mass X-ray binaries Astronomy and Astrophysics. 375: 498-526. DOI: 10.1051/0004-6361:20010856  0.435
2001 Ankay A, Kaper L, Bruijne JHJd, Dewi JDM, Hoogerwerf R, Savonije GJ. The origin of the runaway high-mass X-ray binary HD 153919/4U1700-37 Astronomy and Astrophysics. 370: 170-175. DOI: 10.1051/0004-6361:20010192  0.434
2001 Jong JAD, Henrichs HF, Kaper L, Nichols JS, Bjorkman K, Bohlender DA, Cao H, Gordon K, Hill GJ, Jiang Y, Kolka I, Morrison N, Neff J, O'Neal D, Scheers B, et al. A search for the cause of cyclical wind variability in O stars. Simultaneous UV and optical observations including magnetic field measurements of the O7.5III star xi Persei Astronomy and Astrophysics. 368: 601-621. DOI: 10.1051/0004-6361:20000570  0.482
2001 Loon JTv, Zijlstra AA, Kaper L, Gilmore GF, Loup C, Blommaert JADL. The peculiar cluster HS 327 in the Large Magellanic Cloud: Can OH/IR stars and carbon stars be twins? Astronomy and Astrophysics. 368: 239-249. DOI: 10.1051/0004-6361:20000529  0.525
2000 Henrichs H, de Jong J, Donati J, Catala C, Wade G, Shorlin S, Veen P, Nichols J, Kaper L. The magnetic field of β Cep and the Be phenomenon International Astronomical Union Colloquium. 175: 324-329. DOI: 10.1017/S0252921100056074  0.341
1999 Kaper L, Comerón F, Barziv O. On the formation of wind bow-shocks around OB runaway stars Symposium - International Astronomical Union. 193: 316-324. DOI: 10.1017/S0074180900205585  0.331
1999 Catala C, Donati JF, Boehm T, Landstreet J, Henrichs HF, Unruh Y, Hao J, Cameron AC, Johns-Krull CM, Kaper L, Simon T, Foing BH, Cao H, Ehrenfreund P, Hatzes AP, et al. Short-term spectroscopic variability in the pre-main sequence Herbig Ae star AB Aurigae during the MUSICOS 96 campaign ? Astronomy and Astrophysics. 345: 884-904. DOI: 10.1007/978-3-540-68597-5_84  0.444
1999 Catala C, Donati JF, Böhm T, Landstreet J, Henrichs HF, Unruh Y, Hao J, Cameron AC, Johns-Krull CM, Kaper L, Simon T, Foing BH, Cao H, Ehrenfreund P, Hatzes AP, et al. Short-term spectroscopic variability in the pre-main sequence Herbig Ae star AB Aurigae during the MUSICOS 96 campaign Astronomy and Astrophysics. 345: 884-904.  0.389
1997 Zijlstra A, Wallander A, Kaper L, Rodriquez JA. Remote Observing at the ESO NTT & CAT Telescopes Publications of the Astronomical Society of the Pacific. 109: 1256. DOI: 10.1086/134005  0.301
1996 Kaper L, Henrichs HF, Nichols JS, Snoek LC, Volten H, Zwarthoed GA. Long- and short-term variability in O-star winds. I. Time series of UV spectra for 10 bright O stars Astronomy and Astrophysics Supplement Series. 116: 257-287. DOI: 10.1051/AAS:1996113  0.301
1995 Massa D, Fullerton AW, Nichols JS, Owocki SP, Prinja RK, St-Louis N, Willis AJ, Altner B, Bolton CT, Cassinelli JP, Cohen D, Cooper RG, Feldmeier A, Gayley KG, Harries T, ... ... Kaper L, et al. The iue mega campaign: Wind variability and rotation in early-type stars Astrophysical Journal. 452: L53-L55. DOI: 10.1086/309707  0.384
1994 Telting JH, Kaper L. Long-term periodic variability in UV absorption lines of the Be star Gamma Cassiopeiae: on the relation with V/R variations in the H-beta line Astronomy and Astrophysics. 284: 515-529. DOI: 10.1007/978-94-011-1030-3_106  0.461
1990 Kaper L, Hammerschlag-Hensberge G, Takens RJ. Raman scattering as a diagnostic tool in the massive X-ray binary 4U1700 – 37 Nature. 347: 652-655. DOI: 10.1038/347652A0  0.472
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