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Andrew J. Steffl, Ph.D. - Publications

Affiliations: 
2005 University of Colorado, Boulder, Boulder, CO, United States 
Area:
Astronomy and Astrophysics
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56 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
2020 Keeney BA, Versteeg M, Parker JW, Stern SA, Brunts P, Davis MW, Elliott HA, Ennico K, Gladstone GR, McNutt RL, Olkin CB, Retherford KD, Singer KN, Spencer JR, Steffl AJ, et al. The Search for MeV Electrons 2–45 au from the Sun with the Alice Instrument Microchannel Plate Detector Aboard New Horizons Arxiv: Instrumentation and Methods For Astrophysics. 4: 61. DOI: 10.3847/2515-5172/Ab8Fa7  0.375
2020 Caspi A, Seaton DB, Tsang CCC, DeForest CE, Bryans P, DeLuca EE, Tomczyk S, Burkepile JT, Casey T", Collier J, Darrow D", Rosso DD, Durda DD, Gallagher PT, Golub L, ... ... Steffl AJ, et al. A New Facility for Airborne Solar Astronomy: NASA’s WB-57 at the 2017 Total Solar Eclipse The Astrophysical Journal. 895: 131. DOI: 10.3847/1538-4357/Ab89A8  0.36
2020 Steffl AJ, Young LA, Strobel DF, Kammer JA, Evans JS, Stevens MH, Schindhelm RN, Parker JW, Stern SA, Weaver HA, Olkin CB, Ennico K, Cummings JR, Gladstone GR, Greathouse TK, et al. Pluto's Ultraviolet Spectrum, Surface Reflectance, and Airglow Emissions The Astronomical Journal. 159: 274. DOI: 10.3847/1538-3881/Ab8D1C  0.379
2019 Stern SA, Weaver HA, Spencer JR, Olkin CB, Gladstone GR, Grundy WM, Moore JM, Cruikshank DP, Elliott HA, McKinnon WB, Parker JW, Verbiscer AJ, Young LA, Aguilar DA, Albers JM, ... ... Steffl AJ, et al. Initial results from the New Horizons exploration of 2014 MU, a small Kuiper Belt object. Science (New York, N.Y.). 364. PMID 31097641 DOI: 10.1126/Science.Aaw9771  0.572
2019 Kollmann P, Hill ME, McNutt RL, Brown LE, Allen RC, Clark G, Andrews B, Salazar N, Westlake J, Romeo G, Vandegriff J, Kusterer M, Smith D, Jaskulek S, Decker R, ... ... Steffl AJ, et al. Suprathermal Ions in the Outer Heliosphere The Astrophysical Journal. 876: 46. DOI: 10.3847/1538-4357/Ab125F  0.493
2019 Kammer JA, Gladstone GR, Young LA, Steffl AJ, Parker JW, Greathouse TK, Retherford KD, Versteeg MH, Strobel DF, Summers ME, Stern SA, Olkin CB, Weaver HA, Ennico K, Teams AUS. New Horizons Observations of an Ultraviolet Stellar Occultation and Appulse by Pluto’s Atmosphere The Astronomical Journal. 159: 26. DOI: 10.3847/1538-3881/Ab5A77  0.368
2019 Keeney BA, Stern SA, Vervack RJ, Knight MM, Noonan J, Parker JW, A’Hearn MF, Bertaux J, Feaga LM, Feldman PD, Medina RA, Pineau JP, Schindhelm RN, Steffl AJ, Versteeg M, et al. Upper Limits for Emissions in the Coma of Comet 67P/Churyumov–Gerasimenko near Perihelion as Measured by Rosetta’s Alice Far-UV Spectrograph The Astronomical Journal. 158: 252. DOI: 10.3847/1538-3881/Ab552E  0.451
2019 Keeney BA, Stern SA, Feldman PD, A’Hearn MF, Bertaux J, Feaga LM, Knight MM, Medina RA, Noonan J, Parker JW, Pineau JP, Schindhelm RN, Steffl AJ, Versteeg M, Vervack RJ, et al. Stellar Occultation by Comet 67P/Churyumov–Gerasimenko Observed with Rosetta's Alice Far-ultraviolet Spectrograph The Astronomical Journal. 157: 173. DOI: 10.3847/1538-3881/Ab1097  0.349
2019 Tsuchiya F, Arakawa R, Misawa H, Kagitani M, Koga R, Suzuki F, Hikida R, Yoshioka K, Steffl A, Bagenal F, Delamere P, Kimura T, Kasaba Y, Murakami G, Yoshikawa I, et al. Azimuthal Variation in the Io Plasma Torus Observed by the Hisaki Satellite From 2013 to 2016 Journal of Geophysical Research. 124: 3236-3254. DOI: 10.1029/2018Ja026038  0.575
2018 Noonan JW, Stern SA, Feldman PD, Broiles T, Wedlund CS, Edberg NJT, Schindhelm E, Parker JW, Keeney BA, Vervack Jr RJ, Steffl AJ, Knight MM, Weaver HA, Feaga LM, A’Hearn M, et al. Ultraviolet Observations of Coronal Mass Ejection Impact on Comet 67P/Churyumov–Gerasimenko by Rosetta Alice The Astronomical Journal. 156: 16. DOI: 10.3847/1538-3881/Aac432  0.401
2018 Gladstone GR, Pryor WR, Stern SA, Ennico K, Olkin CB, Spencer JR, Weaver HA, Young LA, Bagenal F, Cheng AF, Cunningham NJ, Elliott HA, Greathouse TK, Hinson DP, Kammer JA, ... ... Steffl AJ, et al. The Lyman‐α Sky Background as Observed by New Horizons Geophysical Research Letters. 45: 8022-8028. DOI: 10.1029/2018Gl078808  0.562
2018 Young LA, Kammer JA, Steffl AJ, Gladstone GR, Summers ME, Strobel DF, Hinson DP, Stern SA, Weaver HA, Olkin CB, Ennico K, McComas DJ, Cheng AF, Gao P, Lavvas P, et al. Structure and composition of Pluto's atmosphere from the New Horizons solar ultraviolet occultation Icarus. 300: 174-199. DOI: 10.1016/J.Icarus.2017.09.006  0.329
2017 Feldman PD, A’Hearn MF, Bertaux J, Feaga LM, Keeney BA, Knight MM, Noonan J, Parker JW, Schindhelm E, Steffl AJ, Stern SA, Vervack RJ, Weaver HA. FUV Spectral Signatures of Molecules and the Evolution of the Gaseous Coma of Comet 67P/Churyumov–Gerasimenko The Astronomical Journal. 155: 9. DOI: 10.3847/1538-3881/Aa9Bf2  0.39
2017 Kammer JA, Stern SA, Young LA, Steffl AJ, Gladstone GR, Olkin CB, Weaver HA, Ennico K, Teams AUS. New Horizons Upper Limits on O 2 in Pluto’s Present Day Atmosphere The Astronomical Journal. 154: 55. DOI: 10.3847/1538-3881/Aa78A7  0.361
2017 Agarwal J, Della Corte V, Feldman PD, Geiger B, Merouane S, Bertini I, Bodewits D, Fornasier S, Grün E, Hasselmann P, Hilchenbach M, Höfner S, Ivanovski S, Kolokolova L, Pajola M, ... ... Steffl AJ, et al. Evidence of sub-surface energy storage in comet 67P from the outburst of 2016 July 03 Monthly Notices of the Royal Astronomical Society. 469: s606-s625. DOI: 10.1093/Mnras/Stx2386  0.31
2017 Chaufray J, Bockelée-Morvan D, Bertaux J, Erard S, Feldman PD, Capaccioni F, Schindhelm E, Leyrat C, Parker J, Filacchione G, A’Hearn MF, Feaga LM, Noonan J, Keeney B, Steffl AJ, et al. Rosetta Alice/VIRTIS observations of the water vapour UV electroglow emissions around comet 67P/Churyumov–Gerasimenko Monthly Notices of the Royal Astronomical Society. 469: S416-S426. DOI: 10.1093/Mnras/Stx1895  0.374
2017 Keeney BA, Stern SA, A’Hearn MF, Bertaux J, Feaga LM, Feldman PD, Medina RA, Parker JW, Pineau JP, Schindhelm E, Steffl AJ, Versteeg M, Weaver HA. H2O and O2 absorption in the coma of comet 67P/Churyumov–Gerasimenko measured by the Alice far-ultraviolet spectrograph on Rosetta Monthly Notices of the Royal Astronomical Society. 469: S158-S177. DOI: 10.1093/Mnras/Stx1426  0.351
2017 Stern S, Kammer J, Gladstone G, Steffl A, Cheng A, Young L, Weaver H, Olkin C, Ennico K, Wm. Parker J, Parker A, Lauer T, Zangari A, Summers M. New Horizons constraints on Charon's present day atmosphere Icarus. 287: 124-130. DOI: 10.1016/J.Icarus.2016.09.019  0.378
2017 Nerney EG, Bagenal F, Steffl AJ. Io plasma torus ion composition: Voyager, Galileo, and Cassini Journal of Geophysical Research. 122: 727-744. DOI: 10.1002/2016Ja023306  0.604
2016 Gladstone GR, Stern SA, Ennico K, Olkin CB, Weaver HA, Young LA, Summers ME, Strobel DF, Hinson DP, Kammer JA, Parker AH, Steffl AJ, Linscott IR, Parker JW, Cheng AF, et al. The atmosphere of Pluto as observed by New Horizons. Science (New York, N.Y.). 351: aad8866. PMID 26989258 DOI: 10.1126/Science.Aad8866  0.325
2016 Feldman PD, A'Hearn MF, Feaga LM, Bertaux JL, Noonan J, Parker JW, Schindhelm E, Steffl AJ, Stern SA, Weaver HA. The nature and frequency of the gas outbursts in comet 67P/Churyumov-Gerasimenko observed by the alice far-ultraviolet spectrograph on Rosetta Astrophysical Journal Letters. 825. DOI: 10.3847/2041-8205/825/1/L8  0.412
2016 Noonan J, Schindhelm E, Parker JW, Steffl A, Davis M, Stern SA, Levin Z, Kempf S, Horyani M. The effects of dust outbursts on the anomalistic features observed by Rosetta Alice around 67P/Churyumov-Gerasimenko Proceedings of Spie. 9905. DOI: 10.1117/12.2234283  0.333
2016 Grün E, Agarwal J, Altobelli N, Altwegg K, Bentley MS, Biver N, Della Corte V, Edberg N, Feldman PD, Galand M, Geiger B, Götz C, Grieger B, Güttler C, Henri P, ... ... Steffl AJ, et al. The 2016 Feb 19 outburst of comet 67P/CG: an ESA Rosetta multi-instrument study Monthly Notices of the Royal Astronomical Society. 462: S220-S234. DOI: 10.1093/Mnras/Stw2088  0.407
2016 Badman SV, Bonfond B, Fujimoto M, Gray RL, Kasaba Y, Kasahara S, Kimura T, Melin H, Nichols JD, Steffl AJ, Tao C, Tsuchiya F, Yamazaki A, Yoneda M, Yoshikawa I, et al. Weakening of Jupiter's main auroral emission during January 2014 Geophysical Research Letters. DOI: 10.1002/2015Gl067366  0.416
2015 Stern SA, Bagenal F, Ennico K, Gladstone GR, Grundy WM, McKinnon WB, Moore JM, Olkin CB, Spencer JR, Weaver HA, Young LA, Andert T, Andrews J, Banks M, Bauer B, ... ... Steffl AJ, et al. The Pluto system: Initial results from its exploration by New Horizons. Science (New York, N.Y.). 350: aad1815. PMID 26472913 DOI: 10.1126/Science.Aad1815  0.564
2015 Feaga LM, Protopapa S, Schindhelm E, Stern SA, A'Hearn MF, Bertaux JL, Feldman PD, Parker JW, Steffl AJ, Weaver HA. Far-UV phase dependence and surface characteristics of comet 67P/Churyumov-Gerasimenko as observed with Rosetta Alice Astronomy and Astrophysics. 583. DOI: 10.1051/0004-6361/201526671  0.336
2015 Feldman PD, A'Hearn MF, Bertaux JL, Feaga LM, Parker JW, Schindhelm E, Steffl AJ, Alan Stern S, Weaver HA, Sierks H, Vincent JB. Measurements of the near-nucleus coma of comet 67P/Churyumov-Gerasimenko with the Alice far-ultraviolet spectrograph on Rosetta Astronomy and Astrophysics. 583. DOI: 10.1051/0004-6361/201525925  0.387
2015 Bagenal F, Sidrow E, Wilson RJ, Cassidy TA, Dols V, Crary FJ, Steffl AJ, Delamere PA, Kurth WS, Paterson WR. Plasma conditions at Europa's orbit Icarus. 261: 1-13. DOI: 10.1016/J.Icarus.2015.07.036  0.58
2015 Stern SA, Feaga LM, Schindhelm E, Steffl A, Parker JW, Feldman PD, Weaver HA, A'Hearn MF, Cook J, Bertaux JL. First extreme and far ultraviolet spectrum of a comet nucleus: Results from 67P/churyumov-gerasimenko Icarus. 256: 117-119. DOI: 10.1016/J.Icarus.2015.04.023  0.364
2015 Noonan J, Schindhelm E, Parker JW, Steffl A, Davis M, Stern SA, Levin Z, Kempf S, Horyani M. An investigation into potential causes of the anomalistic feature observed by the Rosetta Alice spectrograph around 67P/Churyumov-Gerasimenko Acta Astronautica. DOI: 10.1016/J.Actaastro.2016.01.021  0.317
2015 Kimura T, Badman SV, Tao C, Yoshioka K, Murakami G, Yamazaki A, Tsuchiya F, Bonfond B, Steffl AJ, Masters A, Kasahara S, Hasegawa H, Yoshikawa I, Fujimoto M, Clarke JT. Transient internally driven aurora at Jupiter discovered by Hisaki and the Hubble Space Telescope Geophysical Research Letters. 42: 1662-1668. DOI: 10.1002/2015Gl063272  0.412
2013 Steffl AJ, Cunningham NJ, Shinn AB, Durda DD, Stern SA. A search for Vulcanoids with the STEREO Heliospheric Imager Icarus. 223: 48-56. DOI: 10.1016/J.Icarus.2012.11.031  0.32
2012 Hendrix AR, Retherford KD, Randall Gladstone G, Hurley DM, Feldman PD, Egan AF, Kaufmann DE, Miles PF, Parker JW, Horvath D, Rojas PM, Versteeg MH, Davis MW, Greathouse TK, Mukherjee J, ... Steffl AJ, et al. The lunar far-UV albedo: Indicator of hydration and weathering Journal of Geophysical Research E: Planets. 117. DOI: 10.1029/2012Je004252  0.388
2012 Steffl AJ, Shinn AB, Gladstone GR, Parker JW, Retherford KD, Slater DC, Versteeg MH, Stern SA. MeV electrons detected by the Alice UV spectrograph during the New Horizons flyby of Jupiter Journal of Geophysical Research: Space Physics. 117. DOI: 10.1029/2012Ja017869  0.4
2012 Gladstone GR, Retherford KD, Egan AF, Kaufmann DE, Miles PF, Parker JW, Horvath D, Rojas PM, Versteeg MH, Davis MW, Greathouse TK, Slater DC, Mukherjee J, Steffl AJ, Feldman PD, et al. Far-ultraviolet reflectance properties of the Moon's permanently shadowed regions Journal of Geophysical Research E: Planets. 117. DOI: 10.1029/2011Je003913  0.384
2011 Davis MW, Gladstone GR, Versteeg MH, Greathouse TK, Stern SA, Parker JW, Steffl AJ, Retherford KD, Slater DC. Commissioning and in-flight calibration results of the Lunar Reconnaissance Orbiter's Lyman Alpha Mapping Project (LRO/LAMP) UV imaging spectrograph Proceedings of Spie - the International Society For Optical Engineering. 8146. DOI: 10.1117/12.894282  0.368
2011 Stern SA, Parker JW, Feldman PD, Weaver HA, Steffl A, A'Hearn MF, Feaga L, Birath E, Graps A, Bertaux JL, Slater DC, Cunningham N, Versteeg M, Scherrer JR. Ultraviolet discoveries at asteroid (21) Lutetia by the Rosetta Alice ultraviolet spectrograph Astronomical Journal. 141. DOI: 10.1088/0004-6256/141/6/199  0.429
2011 Hess SLG, Delamere PA, Bagenal F, Schneider N, Steffl AJ. Longitudinal modulation of hot electrons in the Io plasma torus Journal of Geophysical Research: Space Physics. 116. DOI: 10.1029/2011Ja016918  0.536
2011 Feldman PD, Steffl AJ, Parker JW, A'Hearn MF, Bertaux JL, Alan Stern S, Weaver HA, Slater DC, Versteeg M, Throop HB, Cunningham NJ, Feaga LM. Rosetta-Alice observations of exospheric hydrogen and oxygen on Mars Icarus. 214: 394-399. DOI: 10.1016/J.Icarus.2011.06.013  0.362
2010 Gladstone GR, Hurley DM, Retherford KD, Feldman PD, Pryor WR, Chaufray JY, Versteeg M, Greathouse TK, Steffl AJ, Throop H, Parker JW, Kaufmann DE, Egan AF, Davis MW, Slater DC, et al. LRO-LAMP observations of the LCROSS impact plume. Science (New York, N.Y.). 330: 472-6. PMID 20966244 DOI: 10.1126/Science.1186474  0.334
2010 Weaver HA, Feldman PD, Merline WJ, Mutchler MJ, A'Hearn MF, Bertaux JL, Feaga LM, Parker JW, Slater DC, Steffl AJ, Chapman CR, Drummond JD, Stern SA. Ultraviolet and visible photometry of asteroid (21) Lutetia using the Hubble Space Telescope Astronomy and Astrophysics. 518. DOI: 10.1051/0004-6361/200913950  0.399
2010 A'Hearn MF, Feaga LM, Bertaux JL, Feldman PD, Parker JW, Slater DC, Steffl AJ, Alan Stern S, Throop H, Versteeg M, Weaver HA, Uwe Keller H. The far-ultraviolet albedo of Šteins measured with Rosetta-ALICE Planetary and Space Science. 58: 1088-1096. DOI: 10.1016/J.Pss.2010.03.005  0.375
2010 Greathouse TK, Gladstone GR, Moses JI, Stern SA, Retherford KD, Vervack RJ, Slater DC, Versteeg MH, Davis MW, Young LA, Steffl AJ, Throop H, Parker JW. New Horizons Alice ultraviolet observations of a stellar occultation by Jupiter's atmosphere Icarus. 208: 293-305. DOI: 10.1016/J.Icarus.2010.02.002  0.322
2009 Retherford KD, Stern SA, Slater DC, Gladstone GR, Davis MW, Parker JW, Versteeg MH, Steffl AJ, Greathouse TK, Cunningham NJ. SwRI's "ALICE" line of ultraviolet spectrographs Proceedings of Spie - the International Society For Optical Engineering. 7441. DOI: 10.1117/12.826192  0.352
2008 Steffl AJ, Delamere PA, Bagenal F. Cassini UVIS observations of the Io plasma torus. IV. Modeling temporal and azimuthal variability Icarus. 194: 153-165. DOI: 10.1016/J.Icarus.2007.09.019  0.6
2007 Retherford KD, Spencer JR, Stern SA, Saur J, Strobel DF, Steffl AJ, Gladstone GR, Weaver HA, Cheng AF, Parker JW, Slater DC, Versteeg MH, Davis MW, Bagenal F, Throop HB, et al. Io's atmospheric response to eclipse: UV aurorae observations. Science (New York, N.Y.). 318: 237-40. PMID 17932289 DOI: 10.1126/Science.1147594  0.614
2007 Gladstone GR, Stern SA, Slater DC, Versteeg M, Davis MW, Retherford KD, Young LA, Steffl AJ, Throop H, Parker JW, Weaver HA, Cheng AF, Orton GS, Clarke JT, Nichols JD. Jupiter's nightside airglow and aurora. Science (New York, N.Y.). 318: 229-31. PMID 17932286 DOI: 10.1126/Science.1147613  0.446
2007 Feldman PD, Stern SA, Steffl AJ, Parker JW, Slater DC, A'Hearn MF, Bertaux JL, Festou MC. Ultraviolet spectroscopy of Comet 9P/Tempel 1 with Alice/Rosetta during the Deep Impact encounter Icarus. 191: 258-262. DOI: 10.1016/J.Icarus.2006.08.016  0.376
2006 Stern SA, Weaver HA, Steffl AJ, Mutchler MJ, Merline WJ, Buie MW, Young EF, Young LA, Spencer JR. A giant impact origin for Pluto's small moons and satellite multiplicity in the Kuiper belt. Nature. 439: 946-8. PMID 16495992 DOI: 10.1038/Nature04548  0.382
2006 Weaver HA, Stern SA, Mutchler MJ, Steffl AJ, Buie MW, Merline WJ, Spencer JR, Young EF, Young LA. Discovery of two new satellites of Pluto. Nature. 439: 943-5. PMID 16495991 DOI: 10.1038/Nature04547  0.369
2006 Steffl AJ, Mutchler MJ, Weaver HA, Stern SA, Durda DD, Terrell D, Merline WJ, Young LA, Young EF, Buie MW, Spencer JR. New constraints on additional satellites of the pluto system Astronomical Journal. 132: 614-619. DOI: 10.1086/505424  0.353
2006 Steffl AJ, Delamere PA, Bagenal F. Cassini UVIS observations of the Io plasma torus. III. Observations of temporal and azimuthal variability Icarus. 180: 124-140. DOI: 10.1016/J.Icarus.2005.07.013  0.596
2005 Pryor WR, Stewart AIF, Esposito LW, McClintock WE, Colwell JE, Jouchoux AJ, Steffl AJ, Shemansky DE, Ajello JM, West RA, Hansen CJ, Tsurutani BT, Kurth WS, Hospodarsky GB, Gurnett DA, et al. Cassini UVIS observations of Jupiter's auroral variability Icarus. 178: 312-326. DOI: 10.1016/J.Icarus.2005.05.021  0.432
2004 Delamere PA, Steffl A, Bagenal F. Modeling temporal variability of plasma conditions in the Io torus during the Cassini era Journal of Geophysical Research: Space Physics. 109. DOI: 10.1029/2003Ja010354  0.625
2004 Steffl AJ, Bagenal F, Stewart AIF. Cassini UVIS observations of the Io plasma torus. II. Radial variations Icarus. 172: 91-103. DOI: 10.1016/J.Icarus.2004.04.016  0.629
2004 Steffl AJ, Stewart AIF, Bagenal F. Cassini UVIS observations of the Io plasma torus. I. Initial results Icarus. 172: 78-90. DOI: 10.1016/J.Icarus.2003.12.027  0.613
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