Thomas Robert Metcalf - Publications

Affiliations: 
1996-2005 Lockheed-Martin Solar and Astrophysics Laboratory 
 2005- NorthWest Research Associates 
Area:
solar magnetic fields, hard-X-ray imaging of solar flares, and spectral line diagnostics
Website:
https://baas.aas.org/pub/thomas-robert-metcalf-1961-2007

45 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
2012 Leka KD, Mickey DL, Uitenbroek H, Wagner EL, Metcalf TR. The Imaging Vector Magnetograph at Haleakalā IV: Stokes Polarization Spectra in the Sodium D 1 589.6 nm Spectral Line Solar Physics. 278: 471-485. DOI: 10.1007/S11207-012-9958-Z  0.349
2009 Leka KD, Barnes G, Crouch AD, Metcalf TR, Gary GA, Jing J, Liu Y. Resolving the 180° Ambiguity in Solar Vector Magnetic Field Data: Evaluating the Effects of Noise, Spatial Resolution, and Method Assumptions Solar Physics. 260: 83-108. DOI: 10.1007/S11207-009-9440-8  0.319
2008 Lundquist LL, Fisher GH, Metcalf TR, Leka KD, McTiernan JM. Forward modeling of active region coronal emissions. II. implications for coronal heating Astrophysical Journal. 689: 1388-1405. DOI: 10.1086/592760  0.659
2008 Schrijver CJ, DeRosa ML, Metcalf T, Barnes G, Lites B, Tarbell T, McTiernan J, Valori G, Wiegelmann T, Wheatland MS, Amari T, Aulanier G, Démoulin P, Fuhrmann M, Kusano K, et al. Nonlinear force-free field modeling of a solar active region around the time of a major flare and coronal mass ejection Astrophysical Journal. 675: 1637-1644. DOI: 10.1086/527413  0.445
2008 Wiegelmann T, Thalmann JK, Schrijver CJ, DeRosa ML, Metcalf TR. Can we improve the preprocessing of photospheric vector magnetograms by the inclusion of chromospheric observations? Solar Physics. 247: 249-267. DOI: 10.1007/S11207-008-9130-Y  0.374
2008 Metcalf TR, Derosa ML, Schrijver CJ, Barnes G, Van Ballegooijen AA, Wiegelmann T, Wheatland MS, Valori G, McTtiernan JM. Nonlinear force-free modeling of coronal magnetic fields. II. Modeling a filament arcade and simulated chromospheric and photospheric vector fields Solar Physics. 247: 269-299. DOI: 10.1007/S11207-007-9110-7  0.363
2006 Wheatland MS, Metcalf TR. An Improved Virial Estimate of Solar Active Region Energy The Astrophysical Journal. 636: 1151-1158. DOI: 10.1086/498211  0.364
2006 Metcalf TR, Leka KD, Barnes G, Lites BW, Georgoulis MK, Pevtsov AA, Balasubramaniam KS, Gary GA, Jing J, Li J, Liu Y, Wang HN, Abramenko V, Yurchyshyn V, Moon Y. An Overview of Existing Algorithms for Resolving the 180° Ambiguity in Vector Magnetic Fields: Quantitative Tests with Synthetic Data Solar Physics. 237: 267-296. DOI: 10.1007/S11207-006-0170-X  0.392
2006 Schrijver CJ, Derosa ML, Metcalf TR, Liu Y, Mctiernan J, Régnier S, Valori G, Wheatland MS, Wiegelmann T. Nonlinear force-free modeling of coronal magnetic fields part I: A quantitative comparison of methods Solar Physics. 235: 161-190. DOI: 10.1007/S11207-006-0068-7  0.327
2005 Schrijver CJ, Derosa ML, Title AM, Metcalf TR. The nonpotentiality of active-region coronae and the dynamics of the photospheric magnetic field Astrophysical Journal. 628: 501-513. DOI: 10.1086/430733  0.448
2005 Metcalf TR, Leka KD, Mickey DL. Magnetic Free Energy in NOAA Active Region 10486 on 2003 October 29 The Astrophysical Journal. 623. DOI: 10.1086/429961  0.407
2004 Georgoulis MK, LaBonte BJ, Metcalf TR. On the Resolution of the Azimuthal Ambiguity in Vector Magnetograms of Solar Active Regions The Astrophysical Journal. 602: 446-467. DOI: 10.1086/380959  0.411
2004 Emslie AG, Kucharek H, Dennis BR, Gopalswamy N, Holman GD, Share GH, Vourlidas A, Forbes TG, Gallagher PT, Mason GM, Metcalf TR, Mewaldt RA, Murphy RJ, Schwartz RA, Zurbuchen TH. Energy partition in two solar flare/CME events Journal of Geophysical Research: Space Physics. 109. DOI: 10.1029/2004Ja010571  0.453
2004 Aschwanden MJ, Metcalf TR, Krucker S, Sato J, Conway AJ, Hurford GJ, Schmahl EJ. On the photometric accuracy of RHESSI imaging and spectrosocopy Solar Physics. 219: 149-157. DOI: 10.1023/B:Sola.0000021801.83038.Aa  0.324
2003 Pevtsov AA, Fisher GH, Acton LW, Longcope DW, Johns-Krull CM, Kankelborg CC, Metcalf TR. The relationship between X-ray radiance and magnetic flux Astrophysical Journal. 598: 1387-1391. DOI: 10.1086/378944  0.7
2003 Metcalf TR, Alexander D, Hudson HS, Longcope DW. Trace and Yohkoh observations of a white-light flare Astrophysical Journal. 595: 483-492. DOI: 10.1086/377217  0.425
2003 Leka KD, Metcalf TR. Active Region Magnetic Structure Observed in the Photosphere and Chromosphere Solar Physics. 212: 361-378. DOI: 10.1023/A:1022996404064  0.404
2002 Alexander D, Metcalf TR, Nitta NV. Fast acceleration of a CME‐related X‐ray structure in the low solar corona Geophysical Research Letters. 29. DOI: 10.1029/2001Gl013670  0.479
2002 Alexander D, Metcalf TR. Energy Dependence of Electron Trapping in a Solar Flare Solar Physics. 210: 323-340. DOI: 10.1023/A:1022457413628  0.384
2002 Hurford GJ, Schmahl EJ, Schwartz RA, Conway AJ, Aschwanden MJ, Csillaghy A, Dennis BR, Johns-Krull C, Krucker S, Lin RP, McTiernan J, Metcalf TR, Sato J, Smith DM. The RHESSI imaging concept Solar Physics. 210: 61-86. DOI: 10.1023/A:1022436213688  0.341
2002 Lin RP, Dennis BR, Hurford GJ, Smith DM, Zehnder A, Harvey PR, Curtis DW, Pankow D, Turin P, Bester M, Csillaghy A, Lewis M, Madden N, Van Beek HF, Appleby M, ... ... Metcalf T, et al. The Reuven Ramaty High-Energy Solar Spectroscopic Imager (RHESSI) Solar Physics. 210: 3-32. DOI: 10.1023/A:1022428818870  0.652
2001 Fletcher L, Metcalf TR, Alexander D, Brown DS, Ryder LA. Evidence for the Flare Trigger Site and Three-Dimensional Reconnection in Multiwavelength Observations of a Solar Flare The Astrophysical Journal. 554: 451-463. DOI: 10.1086/321377  0.488
1999 Metcalf TR, Alexander D. Coronal Trapping of Energetic Flare Particles:Yohkoh/HXT Observations The Astrophysical Journal. 522: 1108-1116. DOI: 10.1086/307679  0.416
1998 Fisher GH, Longcope DW, Metcalf TR, Pevtsov AA. Coronal heating in active regions as a function of global magnetic variables Astrophysical Journal. 508: 885-898. DOI: 10.1086/306435  0.696
1997 Alexander D, Metcalf TR. A Spectral Analysis of the Masuda Flare Using Yohkoh Hard X-Ray Telescope Pixon Reconstruction The Astrophysical Journal. 489: 442-455. DOI: 10.1086/304762  0.473
1997 Li J, Metcalf TR, Canfield RC, Wülser J, Kosugi T. What Is the Spatial Relationship between Hard X-Ray Footpoints and Vertical Electric Currents in Solar Flares? The Astrophysical Journal. 482: 490-497. DOI: 10.1086/304131  0.701
1997 Driel-Gesztelti LV, Csepura G, Schmieder B, Malherbe J-, Metcalf T. Evolution Of A Delta Group In The Photosphere And Corona Solar Physics. 172: 151-160. DOI: 10.1023/A:1004975212949  0.468
1996 Metcalf TR, Hudson HS, Kosugi T, Puetter RC, PiñA RK. Pixon-Based Multiresolution Image Reconstruction For Yohkoh'S Hard X-Ray Telescope The Astrophysical Journal. 466: 585. DOI: 10.1086/177533  0.335
1996 Metcalf TR, Fisher GH. A Test of a New Flare Loop Scaling Law Using YOHKOH SXT and GOES Observations The Astrophysical Journal. 462: 977. DOI: 10.1086/177211  0.545
1995 Pevtsov AA, Canfield RC, Metcalf TR. Latitudinal variation of helicity of photospheric magnetic fields The Astrophysical Journal. 440. DOI: 10.1086/187773  0.629
1995 Metcalf TR, Jiao L, McClymont AN, Canfield RC, Uitenbroek H. Is the solar chromospheric magnetic field force-free? The Astrophysical Journal. 439: 474-481. DOI: 10.1086/175188  0.601
1994 Pevtsov AA, Canfield RC, Metcalf TR. Patterns of Helicity in Solar Active Regions The Astrophysical Journal. 425. DOI: 10.1086/187324  0.561
1994 Metcalf TR, Canfield RC, Hudson HS, Mickey DL, Wulser J, Martens PCH, Tsuneta S. Electric currents and coronal heating in NOAA active region 6952 The Astrophysical Journal. 428: 860. DOI: 10.1086/174295  0.674
1994 Metcalf TR. Resolving the 180-degree ambiguity in vector magnetic field measurements: The 'minimum' energy solution Solar Physics. 155: 235-242. DOI: 10.1007/Bf00680593  0.373
1994 Beaujardière JFDL, Canfield RC, Metcalf TR, Hiei E, Sakurai T, Ichimoto K. Electron precipitation and mass motion in the 1991 june 9 white-light flare Solar Physics. 151: 389-392. DOI: 10.1007/Bf00679084  0.569
1993 Doschek GA, Strong KT, Bentley RD, Brown CM, Culhane JL, Fludra A, Hiei E, Lang J, Mariska JT, Phillips KJH, Pike CD, Sterling AC, Watanabe T, Acton LW, Bruner ME, ... ... Metcalf TR, et al. The 1992 January 5 Flare At 13.3-Ut - Observations From Yohkoh The Astrophysical Journal. 416: 845-856. DOI: 10.1086/173282  0.506
1993 Canfield RC, Beaujardiere J-DL, Fan Y, Leka KD, Mcclymont AN, Metcalf TR, Mickey DL, Wuelser J, Lites BW. The morphology of flare phenomena, magnetic fields, and electric currents in active regions. I - Introduction and methods The Astrophysical Journal. 411: 362-369. DOI: 10.1086/172836  0.611
1990 Metcalf TR, Canfield RC, Saba JLR. Flare heating and ionization of the low solar chromosphere. II - Observations of five solar flares The Astrophysical Journal. 365: 391-406. DOI: 10.1086/169494  0.661
1990 Metcalf TR, Canfield RC, Avrett EH, Metcalf FT. Flare heating and ionization of the low solar chromosphere. I. Inversion methods for Mg I λλ4571 and 5173 Astrophysical Journal. 350: 463-474. DOI: 10.1086/168400  0.598
1990 Canfield RC, Zarro DM, Metcalf TR, Lemen JR. Momentum balance in four solar flares The Astrophysical Journal. 348: 333-340. DOI: 10.1086/168240  0.675
1988 Zarro DM, Canfield RC, Metcalf TR, Strong KT. Explosive plasma flows in a solar flare The Astrophysical Journal. 324: 582-589. DOI: 10.1086/165919  0.673
1988 Zarro DM, Canfield RC, Metcalf TR, Lemen JR. Coordinated soft X-ray and Hα observations of solar flares Advances in Space Research. 8: 149-152. DOI: 10.1016/0273-1177(88)90310-9  0.681
1987 Canfield RC, Metcalf TR. The H alpha Spectral Counterparts of Solar Hard X-Rays Microflares The Astrophysical Journal. 321: 586. DOI: 10.1086/165654  0.636
1987 Canfield RC, Metcalf TR, Strong KT, Zarro DM. A novel observational test of momentum balance in a solar flare Nature. 326: 165-166. DOI: 10.1038/326165A0  0.685
1986 Zarro DM, Strong KT, Canfield RC, Metcalf T, Saba JLR. Evidence for explosive chromospheric evaporation in a solar flare observed with SMM Advances in Space Research. 6: 155-158. DOI: 10.1016/0273-1177(86)90137-7  0.676
Show low-probability matches.