Brian R Dennis

Brian R Dennis

  • RSCH AST, SOLAR & SOLAR TRSTRL STD
  • 301.286.7983 | 301.286.1617
  • NASA/GSFC
  • Mail Code: 671
  • Greenbelt , MD 20771
  • Employer: NASA
  • Brief Bio

    Dr. Brian R. Dennis was educated in England at Queen Elizabeth's Grammar School, Horncastle, Lincolnshire, and at the University of Leeds, Yorkshire. He received his Ph.D. at Leeds in 1964 and immediately moved to the United States to become a research associate at the University of Rochester, New York. He became a National Research Council Resident Research Associate at Goddard Space Flight Center in 1967, a government employee at GSFC as an astrophysicist in 1969, and a U.S. citizen in 1975. Working in the Solar Physics Branch at Goddard, Dr. Dennis has been involved in designing, building, operating, and analyzing data from several X-ray and gamma-ray instruments for observations of solar flares and cosmic X-ray sources. He was a Co-investigator of the Celestial X-Ray Spectrometer on the 8th Orbiting Solar Observatory and Principal Investigator (PI) of the Hard X-Ray Burst Spectrometer on the Solar Maximum Mission (SMM). He co-chaired the Max 91 program to coordinate observations of solar activity during the solar maximum centered around 1991. He is the Mission Scientist and lead Co-I of the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI), a NASA Small Explorer (SMEX) mission launched on 5 February 2002. In 2004, Dr. Dennis received the Goddard Lindsay Award and a NASA Outstanding Leadership Medal for over two decades of work in high energy solar physics that has culminated with the ongoing success of RHESSI.

    Education

    B. Sc. (Physics), University of Leeds, England, 1961
    Ph. D. (Cosmic Ray Physics), University of Leeds, England, 1964

    Publications

    Refereed

    Dennis, B. R., A. K. Tolbert, A. Inglis, et al. J. Ireland, T. Wang, G. D. Holman, L. A. Hayes, and P. T. Gallagher. 2017. "Detection and Interpretation of Long-lived X-Ray Quasi-periodic Pulsations in the X-class Solar Flare on 2013 May 14." The Astrophysical Journal, 836 (1): 84 [10.3847/1538-4357/836/1/84]

    Hayes, L. A., P. T. Gallagher, B. R. Dennis, et al. J. Ireland, A. R. Inglis, and D. F. Ryan. 2016. "Quasi-periodic Pulsations during the Impulsive and Decay phases of an X-class Flare." The Astrophysical Journal Letters, 827 (2): L30 [10.3847/2041-8205/827/2/L30]

    Share, G. H., R. J. Murphy, A. J. Tylka, B. R. Dennis, and J. M. Ryan. 2015. "Misidentification of the source of a neutron transient detected by MESSENGER on 4 June 2011." Journal of Geophysical Research: Space Physics, 120 (1): 1-11 [10.1002/2014ja020663]

    Dennis, B. R., K. J. Phillips, R. A. Schwartz, et al. A. K. Tolbert, R. D. Starr, and L. R. Nittler. 2015. "SOLAR FLARE ELEMENT ABUNDANCES FROM THE SOLAR ASSEMBLY FOR X-RAYS (SAX) ON MESSENGER." The Astrophysical Journal, 803 (2): 67 [10.1088/0004-637x/803/2/67]

    Doschek, G. A., H. P. Warren, B. R. Dennis, J. W. Reep, and A. Caspi. 2015. "FLARE FOOTPOINT REGIONS AND A SURGE OBSERVED BYHINODE/EIS,RHESSI, ANDSDO/AIA." The Astrophysical Journal, 813 (1): 32 [10.1088/0004-637x/813/1/32]

    Jeffrey, N. L., E. P. Kontar, and B. R. Dennis. 2015. "High-temperature differential emission measure and altitude variations in the temperature and density of solar flare coronal X-ray sources." A&A, 584: A89 [10.1051/0004-6361/201526665]

    Milligan, R. O., G. S. Kerr, B. R. Dennis, et al. H. S. Hudson, L. Fletcher, J. C. Allred, P. C. Chamberlin, J. Ireland, M. Mathioudakis, and F. P. Keenan. 2014. "THE RADIATED ENERGY BUDGET OF CHROMOSPHERIC PLASMA IN A MAJOR SOLAR FLARE DEDUCED FROM MULTI-WAVELENGTH OBSERVATIONS." ASTROPHYSICAL JOURNAL, 793: [10.1088/0004-637X/793/2/70]

    Liu, C., N. Deng, J. Lee, et al. T. Wiegelmann, C. Jiang, B. R. Dennis, Y. Su, A. Donea, and H. Wang. 2014. "THREE-DIMENSIONAL MAGNETIC RESTRUCTURING IN TWO HOMOLOGOUS SOLAR FLARES IN THE SEISMICALLY ACTIVE NOAA AR 11283." The Astrophysical Journal, 795 (2): 128 [10.1088/0004-637x/795/2/128]

    Ireland, J., A. K. Tolbert, R. A. Schwartz, G. D. Holman, and B. R. Dennis. 2013. "Estimating the Properties of Hard X-Ray Solar Flares by Constraining Model Parameters." The Astrophysical Journal, 769: [89-10.1088/0004-637X/769/2/89]

    Lin, R. P., A. Caspi, S. Krucker, et al. H. Hudson, G. Hurford, S. Bandler, S. Christe, J. Davila, B. Dennis, G. Holman, R. Milligan, A. Y. Shih, S. Kahler, E. Kontar, M. Wiedenbeck, J. Cirtain, G. Doschek, G. H. Share, A. Vourlidas, J. Raymond, D. M. Smith, M. McConnell, and G. Emslie. 2013. "Solar Eruptive Events (SEE) 2020 Mission Concept." ArXiv e-prints, arXiv:1311.5243-:

    Su, Y., A. M. Veronig, G. D. Holman, et al. B. R. Dennis, T. Wang, M. Temmer, and W. Gan. 2013. "Imaging coronal magnetic-field reconnection in a solar flare." Nature Physics, 9 (8): 489-493 [10.1038/nphys2675]

    Su, Y., B. R. Dennis, G. D. Holman, et al. T. Wang, P. C. Chamberlin, S. Savage, and A. Veronig. 2012. "OBSERVATIONS OF A TWO-STAGE SOLAR ERUPTIVE EVENT (SEE): EVIDENCE FOR SECONDARY HEATING." The Astrophysical Journal, 746 (1): L5 [10.1088/2041-8205/746/1/l5]

    Emslie, A. G., B. R. Dennis, A. Y. Shih, et al. P. C. Chamberlin, R. A. Mewaldt, C. S. Moore, G. H. Share, A. Vourlidas, and B. T. Welsch. 2012. "GLOBAL ENERGETICS OF THIRTY-EIGHT LARGE SOLAR ERUPTIVE EVENTS." The Astrophysical Journal, 759 (1): 71 [10.1088/0004-637x/759/1/71]

    Ireland, J., G. Holman, K. Tolbert, B. R. Dennis, and R. A. Schwatze. 2011. "Bayesian Analysis of RHESSI Flare Data: Effect of Prior Information on Determining the Low-energy Cutoff and the Total Electron Content." Bulletin of the American Astronomical Society, 2228-:

    Christe, S., A. Inglis, M. Aschwanden, and B. Dennis. 2011. "Multi-thermal observations of the 2010 October 16 flare:heating of a ribbon via loops, or a blast wave?" Bulletin of the American Astronomical Society, 2237-:

    Inglis, A., and B. Dennis. 2011. "Pulsations In Two-ribbon Flares: Waves, Reconnection Or Both?" Bulletin of the American Astronomical Society, 1204-:

    Lin, R. P., S. Krucker, A. Caspi, et al. G. Hurford, B. Dennis, G. Holman, S. D. Christe, A. Y. Shih, S. Bandler, J. Davila, R. Milligan, S. Kahler, M. Weidenbeck, G. Doschek, A. Vourlidas, G. Share, J. Raymond, M. McConnell, and G. Emslie. 2011. "Solar Eruptive Events (SEE) Mission for the Next Solar Maximum." Bulletin of the American Astronomical Society, 2204-:

    Inglis, A., S. Christe, M. J. Aschwanden, and B. R. Dennis. 2011. "Transient phenomena and thermal evolution during the Boss' Day flare of 2010 October 16 with AIA, EVE and RHESSI." AGU Fall Meeting Abstracts, A1902-:

    Su, Y., G. D. Holman, and B. R. Dennis. 2011. "Evidence for the Full Hard X-ray Spectral Signature of Nonuniform Ionization in a Solar Flare." The Astrophysical Journal, 731: 106 [Full Text (Link)] [10.1088/0004-637X/731/2/106]

    Istvan Etesi, L., K. Tolbert, R. Schwartz, et al. D. Zarro, B. Dennis, and A. Csillaghy. 2010. "Cloudy Solar Software - Enhanced Capabilities for Finding, Pre-processing, and Visualizing Solar Data." Bulletin of the American Astronomical Society, 41: #407.05-.

    Istvan Etesi, L., K. Tolbert, R. Schwartz, et al. D. Zarro, B. Dennis, and A. Csillaghy. 2010. "Cloudy Solar Software - Enhanced Capabilities for Finding, Pre processing, and Visualizing Solar Data." Bulletin of the American Astronomical Society, 41: #407.05-.

    Hurford, G. J., A. Benz, B. Dennis, et al. S. Krucker, O. Limousin, R. Lin, and N. Vilmer. 2010. "Observing Solar Hard X-rays from Heliospheric Orbits." Bulletin of the American Astronomical Society, 41: #404.16-.

    Schwartz, R. A., B. Dennis, A. K. Tolbert, et al. R. Murphy, G. Share, G. Fishman, M. Briggs, F. Longo, R. Diehl, and R. Wijers. 2010. "Fermi GBM and LAT Solar Flare X Ray and γ Ray Observations." Bulletin of the American Astronomical Society, 41: #404.06-.

    Laming, J. M., J. Adams, D. Alexander, et al. M. Aschwanden, C. Bailey, S. Bandler, J. Bookbinder, S. Bradshaw, N. Brickhouse, J. Chervenak, S. Christe, J. Cirtain, S. Cranmer, S. Deiker, E. DeLuca, G. Del Zanna, B. Dennis, G. Doschek, M. Eckart, A. Fludra, F. Finkbeiner, P. Grigis, R. Harrison, L. Ji, C. Kankelborg, V. Kashyap, D. Kelly, R. Kelley, C. Kilbourne, J. Klimchuk, Y. Ko, E. Landi, M. Linton, D. Longcope, V. Lukin, J. Mariska, D. Martinez-Galarce, H. Mason, D. McKenzie, R. Osten, G. Peres, A. Pevtsov, K. P. Porter, D. Rabin, C. Rakowski, J. Raymond, F. Reale, K. Reeves, J. Sadleir, D. Savin, J. Schmelz, R. K. Smith, S. Smith, R. Stern, J. Sylwester, D. Tripathi, I. Ugarte-Urra, P. Young, H. Warren, and B. Wood. 2010. "Science Objectives for an X-Ray Microcalorimeter Observing the Sun." ArXiv e-prints, arXiv:1011.4052-:

    Milligan, R., R. T. McAteer, B. R. Dennis, and C. A. Young. 2010. "Evidence of Enhanced Particle Acceleration During a Plasmoid-Looptop Collision Observed with RHESSI." Bulletin of the American Astronomical Society, 41: #404.26-.

    Ireland, J., G. Holman, B. R. Dennis, A. K. Tolbert, and R. A. Schwartz. 2009. "Bayesian analysis of RHESSI spectra." AGU Fall Meeting Abstracts, 8-:

    Milligan, R., R. T. McAteer, and B. Dennis. 2009. "Observation Of Inflows And Collapsing X-point During CME Initiation Using STEREO And RHESSI." AAS/Solar Physics Division Meeting #40, 40: #21.10-.

    Milligan, R., and B. Dennis. 2009. "Velocity Characteristics of Evaporated Plasma Using Hinode/EIS." AAS/Solar Physics Division Meeting #40, 40: #36.02-.

    Schwartz, R. A., D. Zarro, A. Csillaghy, et al. B. Dennis, A. K. Tolbert, and L. Etesi. 2009. "VSO For Dummies." AAS/Solar Physics Division Meeting #40, 40: #15.10-.

    McConnell, M. L., L. Angelini, M. G. Baring, et al. S. Barthelmy, J. K. Black, P. F. Bloser, B. Dennis, A. G. Emslie, J. Greiner, W. Hajdas, A. K. Harding, D. H. Hartmann, J. E. Hill, K. Ioka, P. Kaaret, G. Kanbach, D. Kniffen, J. S. Legere, J. R. Macri, R. Morris, T. Nakamura, N. Produit, J. M. Ryan, T. Sakamoto, K. Toma, X. Wu, R. Yamazaki, and B. Zhang. 2009. "GRB Polarimetry with POET." American Institute of Physics Conference Series, 1133: 64-66 [10.1063/1.3155969]

    Liu, W., T.-J. Wang, B. R. Dennis, and G. D. Holman. 2009. "EPISODIC X-RAY EMISSION ACCOMPANYING THE ACTIVATION OF AN ERUPTIVE PROMINENCE: EVIDENCE OF EPISODIC MAGNETIC RECONNECTION." The Astrophysical Journal, 698 (1): 632-640 [10.1088/0004-637x/698/1/632]

    Csillaghy, A., L. Etesi, B. Dennis, et al. D. Zarro, R. Schwartz, and K. Tolbert. 2008. "Extending the Virtual Solar Observatory (VSO) to Incorporate Data Analysis Capabilities (III)." AGU Fall Meeting Abstracts, 1618-:

    Zarro, D., A. Csillaghy, B. Dennis, et al. J. Hourcle, E. Laszlo, R. Schwartz, and K. Tolbert. 2008. "Extending the Virtual Solar Observatory to Incorporate Data Analysis Capabilities (II)." AGU Spring Meeting Abstracts, 19-:

    Zarro, D., A. Csillaghy, B. Dennis, R. Schwartz, and K. Tolbert. 2007. "Extending the Virtual Solar Observatory (VSO) to Incorporate Data Analysis Capabilities." AGU Fall Meeting Abstracts, 5-:

    Sui, L., G. Holman, and B. Dennis. 2006. "Motion of Nonthermal Sources Along Flare Loop." 36th COSPAR Scientific Assembly, 36: 1797-.

    Hudson, H., A. Caspi, B. Dennis, and K. Phillips. 2005. "RHESSI soft X-ray imaging spectroscopy of a flare." AGU Spring Meeting Abstracts, A3-:

    Dennis, B., K. Phillips, J. Sylwester, et al. B. Sylwester, R. Schwartz, and K. Tolbert. 2004. "Thermal and nonthermal contributions to the solar flare x-ray flux." 35th COSPAR Scientific Assembly, 35: 1284-.

    Gburek, S., J. Sylwester, B. Sylwester, B. Dennis, and K. J. Phillips. 2004. "Multi-Wavelength Study of a Strong Impulsive Solar Limb Flare on 2002 August 3." 35th COSPAR Scientific Assembly, 35: 1080-.

    Emslie, A., H. Kucharek, B. Dennis, et al. N. Gopalswamy, G. Holman, G. Share, A. Vourlidas, T. Forbes, P. Gallagher, G. Mason, T. Metcalf, R. Mewaldt, R. Murphy, R. Schwartz, and T. Zurbuchen. 2004. "Energy partition in two solar flare/CME events." Journal of Geophysical Research (Space Physics), 109: 10104 [10.1029/2004JA010571]

    Share, G. H., R. J. Murphy, J. G. Skibo, et al. D. M. Smith, H. S. Hudson, R. P. Lin, A. Y. Shih, B. R. Dennis, R. A. Schwartz, and B. Kozlovsky. 2003. "High-Resolution Observation of the Solar Positron-Electron Annihilation Line." The Astrophysical Journal, 595: L85 [Full Text (Link)] [10.1086/378174]

    Share, G. H., R. J. Murphy, J. G. Skibo, et al. D. M. Smith, H. S. Hudson, R. P. Lin, A. Y. Shih, B. R. Dennis, and R. A. Schwartz. 2003. "RHESSI Observation of the Solar Annihilation Line." Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the International Union of Pure and Applied Physics (IUPAP). Editors: T. Kajita, Y. Asaoka, A. Kawachi, Y. Matsubara and M. Sasaki, p.3199, 6: 3199 [Full Text (Link)]

    Gallagher, P., G. Lawrence, and B. Dennis. 2003. "Rapid Acceleration of a Coronal Mass Ejection in the Low Corona and Implications for Propagation." Bulletin of the American Astronomical Society, 35: 816-.

    Hudson, H., J. Davila, B. Dennis, et al. G. Emslie, R. Lin, J. Ryan, and G. Share. 2003. "RHESSI and non-thermal solar physics in the IHY." EGS - AGU - EUG Joint Assembly, 7939-:

    Schwartz, R. A., J. Kasparova, B. Dennis, and M. Karlicky. 2003. "The Unusual Hard X-ray Spectrum of the Flare of 20 August 2002." AGU Fall Meeting Abstracts, A171-:

    Lawrence, G., P. Gallagher, and B. Dennis. 2003. "The Relationship Between Large Solar Flares and Very Fast Coronal Mass Ejections - Physics and Causality." AGU Fall Meeting Abstracts, 7-:

    Sui, L., G. D. Holman, and B. Dennis. 2003. "Evidence for the Formation of Large-Scale Current Sheets in Three Solar Flares." AGU Fall Meeting Abstracts, 5- ..:

    Lin, R. P., B. R. Dennis, G. J. Hurford, et al. D. M. Smith, A. Zehnder, P. R. Harvey, D. W. Curtis, D. Pankow, P. Turin, M. Bester, A. Csillaghy, M. Lewis, N. Madden, H. F. van Beek, M. Appleby, T. Raudorf, J. McTiernan, R. Ramaty, E. Schmahl, R. Schwartz, S. Krucker, R. Abiad, T. Quinn, P. Berg, M. Hashii, R. Sterling, R. Jackson, R. Pratt, R. D. Campbell, D. Malone, D. Landis, C. P. Barrington-Leigh, S. Slassi-Sennou, C. Cork, D. Clark, D. Amato, L. Orwig, R. Boyle, I. S. Banks, K. Shirey, A. K. Tolbert, D. Zarro, F. Snow, K. Thomsen, R. Henneck, A. McHedlishvili, P. Ming, M. Fivian, J. Jordan, R. Wanner, J. Crubb, J. Preble, M. Matranga, A. Benz, H. Hudson, R. C. Canfield, G. D. Holman, C. Crannell, T. Kosugi, A. G. Emslie, N. Vilmer, J. C. Brown, C. Johns-Krull, M. Aschwanden, T. Metcalf, and A. Conway. 2002. "The Reuven Ramaty High-Energy Solar Spectroscopic Imager (RHESSI)." Solar Physics, 210: 3-32 [10.1023/A:1022428818870]

    Zarro, D. M., K. Tolbert, and B. R. Dennis. 2002. "A Search and Analysis Tool for RHESSI Complementary Observations." Bulletin of the American Astronomical Society, 34: 757-.

    Baker, D. N., R. A. Mewaldt, S. G. Kanekal, et al. M. G. Henderson, D. S. Evans, S. M. Bailey, M. J. Reiner, and B. R. Dennis. 2002. "Tracing the Sun-Earth Connection: The Solar Particle Chain in April 2002." AGU Fall Meeting Abstracts, 3-:

    Lin, R., B. Dennis, A. Benz, et al. J. Harvey, O. Engvold, and Z. Svestka. 2002. "Preface." Solar Physics, 210: 1-1 [10.1007/s11207-004-0827-2]

    Koitzsch, A., G. Blumberg, A. Gozar, et al. B. Dennis, A. P. Ramirez, S. Trebst, and S. Wakimoto. 2002. "Antiferromagnetism in CaCu3Ti4O12 studied by magnetic Raman spectroscopy." Physical Review B, 65: [052406-10.1103/PhysRevB.65.052406]

    Hudson, H., B. Dennis, P. Gallagher, et al. S. Krucker, K. Reeves, and H. Warren. 2002. "RHESSI and TRACE Observations of an X-class Flare." 34th COSPAR Scientific Assembly, 34: -.

    Dennis, B., and A. Veronig. 2002. "The energetic importance of accelerated electrons in solar flares." 34th COSPAR Scientific Assembly, 34: -.

    Benjamin, M., C. A. Young, and B. R. Dennis. 2002. "RHESSI Investigations of the Neupert Effect in Solar Flares." Bulletin of the American Astronomical Society, 35: #141.01-.

    Zarro, D. M., K. Tolbert, and B. Dennis. 2001. "A Search and Analysis Tool for HESSI Ancillary Observations." AGU Fall Meeting Abstracts, A775-:

    Lin, R. P., and B. Dennis. 2001. "The High Energy Solar Spectroscopic Imager (HESSI) Mission." AGU Spring Meeting Abstracts, 42-:

    Kucera, T. A., B. R. Dennis, R. A. Schwartz, and D. Shaw. 1997. "Evidence for a Cutoff in the Frequency Distribution of Solar Flares from Small Active Regions." The Astrophysical Journal, 475 (1): 338-347 [10.1086/303532]

    Kucera, T. A., P. J. Love, B. R. Dennis, et al. G. D. Holman, R. A. Schwartz, and D. M. Zarro. 1996. "A Study of the Thermal/Nonthermal Electric Field Model in Solar Flares Using Spectral and Spatial X-Ray Data from Compton Gamma Ray Observatory and YOHKOH." ApJ, 466: 1067 [10.1086/177576]

    Zarro, D., J. T. Mariska, and B. R. Dennis. 1994. "Studying Solar Flares with YOHKOH and the Compton Gamma-Ray Observatory." Proceedings of Kofu Symposium, 221-224:

    Hudson, H. S., K. T. Strong, B. R. Dennis, et al. D. Zarro, M. Inda, T. Kosugi, and T. Sakao. 1994. "Impulsive behavior in solar soft X-radiation." The Astrophysical Journal, 422: L25-L27 [10.1086/187203]

    Strong, K., H. Hudson, and B. Dennis. 1994. "Evidence for Impulsive Soft-X Bursts during Flares." X-ray solar physics from Yohkoh, 65-:

    Hack, F., K. Hurley, J.-L. Atteia, et al. C. Barat, M. Niel, T. Cline, B. Dennis, C. Kouveliotou, R. Klebesadel, J. Laros, V. Kurt, A. Kuznetsov, and V. Zenchenko. 1994. "Precise Localizations and Counterpart Searches of GRBs from the 2nd Interplanetary Network." Gamma-Ray Bursts, 307: 359-.

    Zarro, D., J. T. Mariska, and B. R. Dennis. 1993. "Studying Flare Models with Yohkoh and GRO/BATSE." Bulletin of the American Astronomical Society, 25: 1186-.

    Hudson, H. S., K. T. Strong, B. R. Dennis, et al. D. Zarro, M. Inda, T. Kosugi, and T. Sakao. 1993. "Impulsive Soft X-Ray Emission in Solar Flares." Bulletin of the American Astronomical Society, 25: 1177-.

    Dennis, B. R., G. D. Holman, H. S. Hudson, et al. T. Kosugi, K. T. Strong, and D. Zarro. 1993. "Evidence for Both Electron Acceleration and Direct Heating in Solar Flares." Bulletin of the American Astronomical Society, 25: 1177-.

    Desai, U., B. Dennis, M. H. Acuna, T. Cline, and G. Porreca. 1993. "Solar X-Ray and Gamma-Ray Burst Instrumentation for the Argentine SAC-B Spacecraft." Small Instruments for Space Physics, 17-:

    Crosby, N., M. Aschwanden, and B. Dennis. 1993. "Frequency distributions of solar X-ray flare parameters." Advances in Space Research, 13: 179-182 [10.1016/0273-1177(93)90474-P]

    Strong, K., B. Dennis, H. Hudson, T. Kosugi, and T. Sakao. 1993. "Survey of Loop-Footpoint Brightenings During the Impulsive Phase of Flares." Bulletin of the American Astronomical Society, 25: 1187-.

    Hack, F., K. Hurley, J.-L. Atteia, et al. C. Barat, M. Niel, T. Cline, B. Dennis, C. Kouveliotou, R. Klebesadel, J. Laros, V. Kurt, A. Kuznetsov, and V. Zenchenko. 1993. "Precise Localizations of Gamma-Ray Bursts from the 2nd Interplanetary Network." Bulletin of the American Astronomical Society, 25: 846-.

    Shrader, C. R., N. Gehrels, and B. Dennis. 1992. "The Compton Observatory Science Workshop. Proceedings." The Compton Observatory Science Workshop. Proceedings.; by Shrader C. R.; Gehrels N.; Dennis B.; National Aeronautics and Space Administration; Washington DC (USA); National Aeronautics and Space Administration; Greenbelt MD (USA). Goddard Space Flight Center, 1992: 566.

    Chen, K.-Y., and B. Dennis. 1991. "Atmospheric Occultation of a Solar Flare in Hard X-Rays." Bulletin of the American Astronomical Society, 23: 1388-.

    Hurley, K., C. Dermer, E. Liang, et al. J.-L. Atteia, C. Barat, M. Niel, G. Vedrenne, V. A. Dyachkov, S. V. Dolidze, I. Mitrofanov, D. W. Evans, R. Klebesadel, J. Laros, T. Cline, B. Dennis, U. Desai, C. Kouveliotou, E. Chupp, and G. Share. 1990. "A 3rd Catalog of Cosmic Gamma-Ray Bursts: 1981-1983 Localizations from the Second Interplanetary Network." International Cosmic Ray Conference, 1: 52-.

    Kouveliotou, C., T. Koshut, D. Biesecker, et al. T. Cline, B. Dennis, U. Desai, and L. Orwig. 1989. "The SMM/HXRBS Gamma Ray Burst Catalogue." Bulletin of the American Astronomical Society, 21: 1176-.

    Atteia, J. L., M. Boer, G. Vedrenne, et al. M. Niel, K. Hurley, J. Laros, E. Fenimore, R. Klebesadel, A. V. Kuznetsov, R. A. Sunyaev, O. V. Terekhov, C. Kouveliotou, T. Cline, B. Dennis, U. Desai, and L. Orwig. 1987. "The discovery of a source of repeated soft short gamma bursts in Sagittarius." Pisma v Astronomicheskii Zhurnal, 13: 987-994.

    Atteia, J.-L., M. Boer, K. Hurley, et al. M. Niel, G. Vedrenne, E. E. Fenimore, R. W. Klebesadel, J. G. Laros, A. V. Kuznetsov, R. A. Sunyaev, O. V. Terekhov, C. Kouveliotou, T. Cline, B. Dennis, U. Desai, and L. Orwig. 1987. "Localization, time histories, and energy spectra of a new type of recurrent high-energy transient source." The Astrophysical Journal, 320: L105-L110 [10.1086/184984]

    Bai, T., and B. Dennis. 1985. "Characteristics of gamma-ray line flares." The Astrophysical Journal, 292: 699-715 [10.1086/163202]

    Bai, T., and B. Dennis. 1983. "Characteristics of gamma-ray line flares." NASA STI/Recon Technical Report N, 84: 14098-.

    Strong, K. T., J. Sylwester, A. Parmar, B. Dennis, and A. Poland. 1980. "Changes in the Characteristics of the Coronal Plasma During Two Impulsive Flares." Bulletin of the American Astronomical Society, 12: 911-.

    Dulk, G. A., B. Dennis, and K. Kai. 1980. "Microwave and Hard X-ray Observations of the Flare on 1980 June 29 0230 UT." Bulletin of the American Astronomical Society, 12: 903-.

    Non-Refereed

    Inglis, A., and B. R. Dennis. 2012. "The Relationship Between Hard X-ray Pulse Timings and the Locations of Footpoint Sources During Solar Flares." American Astronomical Society Meeting Abstracts #220 220: #204.10-.

    Brief Bio

    Dr. Brian R. Dennis was educated in England at Queen Elizabeth's Grammar School, Horncastle, Lincolnshire, and at the University of Leeds, Yorkshire. He received his Ph.D. at Leeds in 1964 and immediately moved to the United States to become a research associate at the University of Rochester, New York. He became a National Research Council Resident Research Associate at Goddard Space Flight Center in 1967, a government employee at GSFC as an astrophysicist in 1969, and a U.S. citizen in 1975. Working in the Solar Physics Branch at Goddard, Dr. Dennis has been involved in designing, building, operating, and analyzing data from several X-ray and gamma-ray instruments for observations of solar flares and cosmic X-ray sources. He was a Co-investigator of the Celestial X-Ray Spectrometer on the 8th Orbiting Solar Observatory and Principal Investigator (PI) of the Hard X-Ray Burst Spectrometer on the Solar Maximum Mission (SMM). He co-chaired the Max 91 program to coordinate observations of solar activity during the solar maximum centered around 1991. He is the Mission Scientist and lead Co-I of the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI), a NASA Small Explorer (SMEX) mission launched on 5 February 2002. In 2004, Dr. Dennis received the Goddard Lindsay Award and a NASA Outstanding Leadership Medal for over two decades of work in high energy solar physics that has culminated with the ongoing success of RHESSI.

    Publications

    Refereed

    Dennis, B. R., A. K. Tolbert, A. Inglis, et al. J. Ireland, T. Wang, G. D. Holman, L. A. Hayes, and P. T. Gallagher. 2017. "Detection and Interpretation of Long-lived X-Ray Quasi-periodic Pulsations in the X-class Solar Flare on 2013 May 14." The Astrophysical Journal 836 (1): 84 [10.3847/1538-4357/836/1/84]

    Hayes, L. A., P. T. Gallagher, B. R. Dennis, et al. J. Ireland, A. R. Inglis, and D. F. Ryan. 2016. "Quasi-periodic Pulsations during the Impulsive and Decay phases of an X-class Flare." The Astrophysical Journal Letters 827 (2): L30 [10.3847/2041-8205/827/2/L30]

    Share, G. H., R. J. Murphy, A. J. Tylka, B. R. Dennis, and J. M. Ryan. 2015. "Misidentification of the source of a neutron transient detected by MESSENGER on 4 June 2011." Journal of Geophysical Research: Space Physics 120 (1): 1-11 [10.1002/2014ja020663]

    Dennis, B. R., K. J. Phillips, R. A. Schwartz, et al. A. K. Tolbert, R. D. Starr, and L. R. Nittler. 2015. "SOLAR FLARE ELEMENT ABUNDANCES FROM THE SOLAR ASSEMBLY FOR X-RAYS (SAX) ON MESSENGER." The Astrophysical Journal 803 (2): 67 [10.1088/0004-637x/803/2/67]

    Doschek, G. A., H. P. Warren, B. R. Dennis, J. W. Reep, and A. Caspi. 2015. "FLARE FOOTPOINT REGIONS AND A SURGE OBSERVED BYHINODE/EIS,RHESSI, ANDSDO/AIA." The Astrophysical Journal 813 (1): 32 [10.1088/0004-637x/813/1/32]

    Jeffrey, N. L., E. P. Kontar, and B. R. Dennis. 2015. "High-temperature differential emission measure and altitude variations in the temperature and density of solar flare coronal X-ray sources." A&A 584 A89 [10.1051/0004-6361/201526665]

    Milligan, R. O., G. S. Kerr, B. R. Dennis, et al. H. S. Hudson, L. Fletcher, J. C. Allred, P. C. Chamberlin, J. Ireland, M. Mathioudakis, and F. P. Keenan. 2014. "THE RADIATED ENERGY BUDGET OF CHROMOSPHERIC PLASMA IN A MAJOR SOLAR FLARE DEDUCED FROM MULTI-WAVELENGTH OBSERVATIONS." ASTROPHYSICAL JOURNAL 793 [10.1088/0004-637X/793/2/70]

    Liu, C., N. Deng, J. Lee, et al. T. Wiegelmann, C. Jiang, B. R. Dennis, Y. Su, A. Donea, and H. Wang. 2014. "THREE-DIMENSIONAL MAGNETIC RESTRUCTURING IN TWO HOMOLOGOUS SOLAR FLARES IN THE SEISMICALLY ACTIVE NOAA AR 11283." The Astrophysical Journal 795 (2): 128 [10.1088/0004-637x/795/2/128]

    Ireland, J., A. K. Tolbert, R. A. Schwartz, G. D. Holman, and B. R. Dennis. 2013. "Estimating the Properties of Hard X-Ray Solar Flares by Constraining Model Parameters." The Astrophysical Journal 769 [89-10.1088/0004-637X/769/2/89]

    Lin, R. P., A. Caspi, S. Krucker, et al. H. Hudson, G. Hurford, S. Bandler, S. Christe, J. Davila, B. Dennis, G. Holman, R. Milligan, A. Y. Shih, S. Kahler, E. Kontar, M. Wiedenbeck, J. Cirtain, G. Doschek, G. H. Share, A. Vourlidas, J. Raymond, D. M. Smith, M. McConnell, and G. Emslie. 2013. "Solar Eruptive Events (SEE) 2020 Mission Concept." ArXiv e-prints arXiv:1311.5243-

    Su, Y., A. M. Veronig, G. D. Holman, et al. B. R. Dennis, T. Wang, M. Temmer, and W. Gan. 2013. "Imaging coronal magnetic-field reconnection in a solar flare." Nature Physics 9 (8): 489-493 [10.1038/nphys2675]

    Su, Y., B. R. Dennis, G. D. Holman, et al. T. Wang, P. C. Chamberlin, S. Savage, and A. Veronig. 2012. "OBSERVATIONS OF A TWO-STAGE SOLAR ERUPTIVE EVENT (SEE): EVIDENCE FOR SECONDARY HEATING." The Astrophysical Journal 746 (1): L5 [10.1088/2041-8205/746/1/l5]

    Emslie, A. G., B. R. Dennis, A. Y. Shih, et al. P. C. Chamberlin, R. A. Mewaldt, C. S. Moore, G. H. Share, A. Vourlidas, and B. T. Welsch. 2012. "GLOBAL ENERGETICS OF THIRTY-EIGHT LARGE SOLAR ERUPTIVE EVENTS." The Astrophysical Journal 759 (1): 71 [10.1088/0004-637x/759/1/71]

    Ireland, J., G. Holman, K. Tolbert, B. R. Dennis, and R. A. Schwatze. 2011. "Bayesian Analysis of RHESSI Flare Data: Effect of Prior Information on Determining the Low-energy Cutoff and the Total Electron Content." Bulletin of the American Astronomical Society 2228-

    Christe, S., A. Inglis, M. Aschwanden, and B. Dennis. 2011. "Multi-thermal observations of the 2010 October 16 flare:heating of a ribbon via loops, or a blast wave?" Bulletin of the American Astronomical Society 2237-

    Inglis, A., and B. Dennis. 2011. "Pulsations In Two-ribbon Flares: Waves, Reconnection Or Both?" Bulletin of the American Astronomical Society 1204-

    Lin, R. P., S. Krucker, A. Caspi, et al. G. Hurford, B. Dennis, G. Holman, S. D. Christe, A. Y. Shih, S. Bandler, J. Davila, R. Milligan, S. Kahler, M. Weidenbeck, G. Doschek, A. Vourlidas, G. Share, J. Raymond, M. McConnell, and G. Emslie. 2011. "Solar Eruptive Events (SEE) Mission for the Next Solar Maximum." Bulletin of the American Astronomical Society 2204-

    Inglis, A., S. Christe, M. J. Aschwanden, and B. R. Dennis. 2011. "Transient phenomena and thermal evolution during the Boss' Day flare of 2010 October 16 with AIA, EVE and RHESSI." AGU Fall Meeting Abstracts A1902-

    Su, Y., G. D. Holman, and B. R. Dennis. 2011. "Evidence for the Full Hard X-ray Spectral Signature of Nonuniform Ionization in a Solar Flare." The Astrophysical Journal 731 106 [Full Text (Link)] [10.1088/0004-637X/731/2/106]

    Istvan Etesi, L., K. Tolbert, R. Schwartz, et al. D. Zarro, B. Dennis, and A. Csillaghy. 2010. "Cloudy Solar Software - Enhanced Capabilities for Finding, Pre-processing, and Visualizing Solar Data." Bulletin of the American Astronomical Society 41 #407.05-

    Istvan Etesi, L., K. Tolbert, R. Schwartz, et al. D. Zarro, B. Dennis, and A. Csillaghy. 2010. "Cloudy Solar Software - Enhanced Capabilities for Finding, Pre processing, and Visualizing Solar Data." Bulletin of the American Astronomical Society 41 #407.05-

    Hurford, G. J., A. Benz, B. Dennis, et al. S. Krucker, O. Limousin, R. Lin, and N. Vilmer. 2010. "Observing Solar Hard X-rays from Heliospheric Orbits." Bulletin of the American Astronomical Society 41 #404.16-

    Schwartz, R. A., B. Dennis, A. K. Tolbert, et al. R. Murphy, G. Share, G. Fishman, M. Briggs, F. Longo, R. Diehl, and R. Wijers. 2010. "Fermi GBM and LAT Solar Flare X Ray and γ Ray Observations." Bulletin of the American Astronomical Society 41 #404.06-

    Laming, J. M., J. Adams, D. Alexander, et al. M. Aschwanden, C. Bailey, S. Bandler, J. Bookbinder, S. Bradshaw, N. Brickhouse, J. Chervenak, S. Christe, J. Cirtain, S. Cranmer, S. Deiker, E. DeLuca, G. Del Zanna, B. Dennis, G. Doschek, M. Eckart, A. Fludra, F. Finkbeiner, P. Grigis, R. Harrison, L. Ji, C. Kankelborg, V. Kashyap, D. Kelly, R. Kelley, C. Kilbourne, J. Klimchuk, Y. Ko, E. Landi, M. Linton, D. Longcope, V. Lukin, J. Mariska, D. Martinez-Galarce, H. Mason, D. McKenzie, R. Osten, G. Peres, A. Pevtsov, K. P. Porter, D. Rabin, C. Rakowski, J. Raymond, F. Reale, K. Reeves, J. Sadleir, D. Savin, J. Schmelz, R. K. Smith, S. Smith, R. Stern, J. Sylwester, D. Tripathi, I. Ugarte-Urra, P. Young, H. Warren, and B. Wood. 2010. "Science Objectives for an X-Ray Microcalorimeter Observing the Sun." ArXiv e-prints arXiv:1011.4052-

    Milligan, R., R. T. McAteer, B. R. Dennis, and C. A. Young. 2010. "Evidence of Enhanced Particle Acceleration During a Plasmoid-Looptop Collision Observed with RHESSI." Bulletin of the American Astronomical Society 41 #404.26-

    Ireland, J., G. Holman, B. R. Dennis, A. K. Tolbert, and R. A. Schwartz. 2009. "Bayesian analysis of RHESSI spectra." AGU Fall Meeting Abstracts 8-

    Milligan, R., R. T. McAteer, and B. Dennis. 2009. "Observation Of Inflows And Collapsing X-point During CME Initiation Using STEREO And RHESSI." AAS/Solar Physics Division Meeting #40 40 #21.10-

    Milligan, R., and B. Dennis. 2009. "Velocity Characteristics of Evaporated Plasma Using Hinode/EIS." AAS/Solar Physics Division Meeting #40 40 #36.02-

    Schwartz, R. A., D. Zarro, A. Csillaghy, et al. B. Dennis, A. K. Tolbert, and L. Etesi. 2009. "VSO For Dummies." AAS/Solar Physics Division Meeting #40 40 #15.10-

    McConnell, M. L., L. Angelini, M. G. Baring, et al. S. Barthelmy, J. K. Black, P. F. Bloser, B. Dennis, A. G. Emslie, J. Greiner, W. Hajdas, A. K. Harding, D. H. Hartmann, J. E. Hill, K. Ioka, P. Kaaret, G. Kanbach, D. Kniffen, J. S. Legere, J. R. Macri, R. Morris, T. Nakamura, N. Produit, J. M. Ryan, T. Sakamoto, K. Toma, X. Wu, R. Yamazaki, and B. Zhang. 2009. "GRB Polarimetry with POET." American Institute of Physics Conference Series 1133 64-66 [10.1063/1.3155969]

    Liu, W., T.-J. Wang, B. R. Dennis, and G. D. Holman. 2009. "EPISODIC X-RAY EMISSION ACCOMPANYING THE ACTIVATION OF AN ERUPTIVE PROMINENCE: EVIDENCE OF EPISODIC MAGNETIC RECONNECTION." The Astrophysical Journal 698 (1): 632-640 [10.1088/0004-637x/698/1/632]

    Csillaghy, A., L. Etesi, B. Dennis, et al. D. Zarro, R. Schwartz, and K. Tolbert. 2008. "Extending the Virtual Solar Observatory (VSO) to Incorporate Data Analysis Capabilities (III)." AGU Fall Meeting Abstracts 1618-

    Zarro, D., A. Csillaghy, B. Dennis, et al. J. Hourcle, E. Laszlo, R. Schwartz, and K. Tolbert. 2008. "Extending the Virtual Solar Observatory to Incorporate Data Analysis Capabilities (II)." AGU Spring Meeting Abstracts 19-

    Zarro, D., A. Csillaghy, B. Dennis, R. Schwartz, and K. Tolbert. 2007. "Extending the Virtual Solar Observatory (VSO) to Incorporate Data Analysis Capabilities." AGU Fall Meeting Abstracts 5-

    Sui, L., G. Holman, and B. Dennis. 2006. "Motion of Nonthermal Sources Along Flare Loop." 36th COSPAR Scientific Assembly 36 1797-

    Hudson, H., A. Caspi, B. Dennis, and K. Phillips. 2005. "RHESSI soft X-ray imaging spectroscopy of a flare." AGU Spring Meeting Abstracts A3-

    Dennis, B., K. Phillips, J. Sylwester, et al. B. Sylwester, R. Schwartz, and K. Tolbert. 2004. "Thermal and nonthermal contributions to the solar flare x-ray flux." 35th COSPAR Scientific Assembly 35 1284-

    Gburek, S., J. Sylwester, B. Sylwester, B. Dennis, and K. J. Phillips. 2004. "Multi-Wavelength Study of a Strong Impulsive Solar Limb Flare on 2002 August 3." 35th COSPAR Scientific Assembly 35 1080-

    Emslie, A., H. Kucharek, B. Dennis, et al. N. Gopalswamy, G. Holman, G. Share, A. Vourlidas, T. Forbes, P. Gallagher, G. Mason, T. Metcalf, R. Mewaldt, R. Murphy, R. Schwartz, and T. Zurbuchen. 2004. "Energy partition in two solar flare/CME events." Journal of Geophysical Research (Space Physics) 109 10104 [10.1029/2004JA010571]

    Share, G. H., R. J. Murphy, J. G. Skibo, et al. D. M. Smith, H. S. Hudson, R. P. Lin, A. Y. Shih, B. R. Dennis, R. A. Schwartz, and B. Kozlovsky. 2003. "High-Resolution Observation of the Solar Positron-Electron Annihilation Line." The Astrophysical Journal 595 L85 [Full Text (Link)] [10.1086/378174]

    Share, G. H., R. J. Murphy, J. G. Skibo, et al. D. M. Smith, H. S. Hudson, R. P. Lin, A. Y. Shih, B. R. Dennis, and R. A. Schwartz. 2003. "RHESSI Observation of the Solar Annihilation Line." Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the International Union of Pure and Applied Physics (IUPAP). Editors: T. Kajita, Y. Asaoka, A. Kawachi, Y. Matsubara and M. Sasaki, p.3199 6 3199 [Full Text (Link)]

    Gallagher, P., G. Lawrence, and B. Dennis. 2003. "Rapid Acceleration of a Coronal Mass Ejection in the Low Corona and Implications for Propagation." Bulletin of the American Astronomical Society 35 816-

    Hudson, H., J. Davila, B. Dennis, et al. G. Emslie, R. Lin, J. Ryan, and G. Share. 2003. "RHESSI and non-thermal solar physics in the IHY." EGS - AGU - EUG Joint Assembly 7939-

    Schwartz, R. A., J. Kasparova, B. Dennis, and M. Karlicky. 2003. "The Unusual Hard X-ray Spectrum of the Flare of 20 August 2002." AGU Fall Meeting Abstracts A171-

    Lawrence, G., P. Gallagher, and B. Dennis. 2003. "The Relationship Between Large Solar Flares and Very Fast Coronal Mass Ejections - Physics and Causality." AGU Fall Meeting Abstracts 7-

    Sui, L., G. D. Holman, and B. Dennis. 2003. "Evidence for the Formation of Large-Scale Current Sheets in Three Solar Flares." AGU Fall Meeting Abstracts 5- ..

    Lin, R. P., B. R. Dennis, G. J. Hurford, et al. D. M. Smith, A. Zehnder, P. R. Harvey, D. W. Curtis, D. Pankow, P. Turin, M. Bester, A. Csillaghy, M. Lewis, N. Madden, H. F. van Beek, M. Appleby, T. Raudorf, J. McTiernan, R. Ramaty, E. Schmahl, R. Schwartz, S. Krucker, R. Abiad, T. Quinn, P. Berg, M. Hashii, R. Sterling, R. Jackson, R. Pratt, R. D. Campbell, D. Malone, D. Landis, C. P. Barrington-Leigh, S. Slassi-Sennou, C. Cork, D. Clark, D. Amato, L. Orwig, R. Boyle, I. S. Banks, K. Shirey, A. K. Tolbert, D. Zarro, F. Snow, K. Thomsen, R. Henneck, A. McHedlishvili, P. Ming, M. Fivian, J. Jordan, R. Wanner, J. Crubb, J. Preble, M. Matranga, A. Benz, H. Hudson, R. C. Canfield, G. D. Holman, C. Crannell, T. Kosugi, A. G. Emslie, N. Vilmer, J. C. Brown, C. Johns-Krull, M. Aschwanden, T. Metcalf, and A. Conway. 2002. "The Reuven Ramaty High-Energy Solar Spectroscopic Imager (RHESSI)." Solar Physics 210 3-32 [10.1023/A:1022428818870]

    Zarro, D. M., K. Tolbert, and B. R. Dennis. 2002. "A Search and Analysis Tool for RHESSI Complementary Observations." Bulletin of the American Astronomical Society 34 757-

    Baker, D. N., R. A. Mewaldt, S. G. Kanekal, et al. M. G. Henderson, D. S. Evans, S. M. Bailey, M. J. Reiner, and B. R. Dennis. 2002. "Tracing the Sun-Earth Connection: The Solar Particle Chain in April 2002." AGU Fall Meeting Abstracts 3-

    Lin, R., B. Dennis, A. Benz, et al. J. Harvey, O. Engvold, and Z. Svestka. 2002. "Preface." Solar Physics 210 1-1 [10.1007/s11207-004-0827-2]

    Koitzsch, A., G. Blumberg, A. Gozar, et al. B. Dennis, A. P. Ramirez, S. Trebst, and S. Wakimoto. 2002. "Antiferromagnetism in CaCu3Ti4O12 studied by magnetic Raman spectroscopy." Physical Review B 65 [052406-10.1103/PhysRevB.65.052406]

    Hudson, H., B. Dennis, P. Gallagher, et al. S. Krucker, K. Reeves, and H. Warren. 2002. "RHESSI and TRACE Observations of an X-class Flare." 34th COSPAR Scientific Assembly 34 -

    Dennis, B., and A. Veronig. 2002. "The energetic importance of accelerated electrons in solar flares." 34th COSPAR Scientific Assembly 34 -

    Benjamin, M., C. A. Young, and B. R. Dennis. 2002. "RHESSI Investigations of the Neupert Effect in Solar Flares." Bulletin of the American Astronomical Society 35 #141.01-

    Zarro, D. M., K. Tolbert, and B. Dennis. 2001. "A Search and Analysis Tool for HESSI Ancillary Observations." AGU Fall Meeting Abstracts A775-

    Lin, R. P., and B. Dennis. 2001. "The High Energy Solar Spectroscopic Imager (HESSI) Mission." AGU Spring Meeting Abstracts 42-

    Kucera, T. A., B. R. Dennis, R. A. Schwartz, and D. Shaw. 1997. "Evidence for a Cutoff in the Frequency Distribution of Solar Flares from Small Active Regions." The Astrophysical Journal 475 (1): 338-347 [10.1086/303532]

    Kucera, T. A., P. J. Love, B. R. Dennis, et al. G. D. Holman, R. A. Schwartz, and D. M. Zarro. 1996. "A Study of the Thermal/Nonthermal Electric Field Model in Solar Flares Using Spectral and Spatial X-Ray Data from Compton Gamma Ray Observatory and YOHKOH." ApJ 466 1067 [10.1086/177576]

    Zarro, D., J. T. Mariska, and B. R. Dennis. 1994. "Studying Solar Flares with YOHKOH and the Compton Gamma-Ray Observatory." Proceedings of Kofu Symposium 221-224

    Hudson, H. S., K. T. Strong, B. R. Dennis, et al. D. Zarro, M. Inda, T. Kosugi, and T. Sakao. 1994. "Impulsive behavior in solar soft X-radiation." The Astrophysical Journal 422 L25-L27 [10.1086/187203]

    Strong, K., H. Hudson, and B. Dennis. 1994. "Evidence for Impulsive Soft-X Bursts during Flares." X-ray solar physics from Yohkoh 65-

    Hack, F., K. Hurley, J.-L. Atteia, et al. C. Barat, M. Niel, T. Cline, B. Dennis, C. Kouveliotou, R. Klebesadel, J. Laros, V. Kurt, A. Kuznetsov, and V. Zenchenko. 1994. "Precise Localizations and Counterpart Searches of GRBs from the 2nd Interplanetary Network." Gamma-Ray Bursts 307 359-

    Zarro, D., J. T. Mariska, and B. R. Dennis. 1993. "Studying Flare Models with Yohkoh and GRO/BATSE." Bulletin of the American Astronomical Society 25 1186-

    Hudson, H. S., K. T. Strong, B. R. Dennis, et al. D. Zarro, M. Inda, T. Kosugi, and T. Sakao. 1993. "Impulsive Soft X-Ray Emission in Solar Flares." Bulletin of the American Astronomical Society 25 1177-

    Dennis, B. R., G. D. Holman, H. S. Hudson, et al. T. Kosugi, K. T. Strong, and D. Zarro. 1993. "Evidence for Both Electron Acceleration and Direct Heating in Solar Flares." Bulletin of the American Astronomical Society 25 1177-

    Desai, U., B. Dennis, M. H. Acuna, T. Cline, and G. Porreca. 1993. "Solar X-Ray and Gamma-Ray Burst Instrumentation for the Argentine SAC-B Spacecraft." Small Instruments for Space Physics 17-

    Crosby, N., M. Aschwanden, and B. Dennis. 1993. "Frequency distributions of solar X-ray flare parameters." Advances in Space Research 13 179-182 [10.1016/0273-1177(93)90474-P]

    Strong, K., B. Dennis, H. Hudson, T. Kosugi, and T. Sakao. 1993. "Survey of Loop-Footpoint Brightenings During the Impulsive Phase of Flares." Bulletin of the American Astronomical Society 25 1187-

    Hack, F., K. Hurley, J.-L. Atteia, et al. C. Barat, M. Niel, T. Cline, B. Dennis, C. Kouveliotou, R. Klebesadel, J. Laros, V. Kurt, A. Kuznetsov, and V. Zenchenko. 1993. "Precise Localizations of Gamma-Ray Bursts from the 2nd Interplanetary Network." Bulletin of the American Astronomical Society 25 846-

    Shrader, C. R., N. Gehrels, and B. Dennis. 1992. "The Compton Observatory Science Workshop. Proceedings." The Compton Observatory Science Workshop. Proceedings.; by Shrader C. R.; Gehrels N.; Dennis B.; National Aeronautics and Space Administration; Washington DC (USA); National Aeronautics and Space Administration; Greenbelt MD (USA). Goddard Space Flight Center 1992 566

    Chen, K.-Y., and B. Dennis. 1991. "Atmospheric Occultation of a Solar Flare in Hard X-Rays." Bulletin of the American Astronomical Society 23 1388-

    Hurley, K., C. Dermer, E. Liang, et al. J.-L. Atteia, C. Barat, M. Niel, G. Vedrenne, V. A. Dyachkov, S. V. Dolidze, I. Mitrofanov, D. W. Evans, R. Klebesadel, J. Laros, T. Cline, B. Dennis, U. Desai, C. Kouveliotou, E. Chupp, and G. Share. 1990. "A 3rd Catalog of Cosmic Gamma-Ray Bursts: 1981-1983 Localizations from the Second Interplanetary Network." International Cosmic Ray Conference 1 52-

    Kouveliotou, C., T. Koshut, D. Biesecker, et al. T. Cline, B. Dennis, U. Desai, and L. Orwig. 1989. "The SMM/HXRBS Gamma Ray Burst Catalogue." Bulletin of the American Astronomical Society 21 1176-

    Atteia, J. L., M. Boer, G. Vedrenne, et al. M. Niel, K. Hurley, J. Laros, E. Fenimore, R. Klebesadel, A. V. Kuznetsov, R. A. Sunyaev, O. V. Terekhov, C. Kouveliotou, T. Cline, B. Dennis, U. Desai, and L. Orwig. 1987. "The discovery of a source of repeated soft short gamma bursts in Sagittarius." Pisma v Astronomicheskii Zhurnal 13 987-994

    Atteia, J.-L., M. Boer, K. Hurley, et al. M. Niel, G. Vedrenne, E. E. Fenimore, R. W. Klebesadel, J. G. Laros, A. V. Kuznetsov, R. A. Sunyaev, O. V. Terekhov, C. Kouveliotou, T. Cline, B. Dennis, U. Desai, and L. Orwig. 1987. "Localization, time histories, and energy spectra of a new type of recurrent high-energy transient source." The Astrophysical Journal 320 L105-L110 [10.1086/184984]

    Bai, T., and B. Dennis. 1985. "Characteristics of gamma-ray line flares." The Astrophysical Journal 292 699-715 [10.1086/163202]

    Bai, T., and B. Dennis. 1983. "Characteristics of gamma-ray line flares." NASA STI/Recon Technical Report N 84 14098-

    Strong, K. T., J. Sylwester, A. Parmar, B. Dennis, and A. Poland. 1980. "Changes in the Characteristics of the Coronal Plasma During Two Impulsive Flares." Bulletin of the American Astronomical Society 12 911-

    Dulk, G. A., B. Dennis, and K. Kai. 1980. "Microwave and Hard X-ray Observations of the Flare on 1980 June 29 0230 UT." Bulletin of the American Astronomical Society 12 903-

    Non-Refereed

    Inglis, A., and B. R. Dennis. 2012. "The Relationship Between Hard X-ray Pulse Timings and the Locations of Footpoint Sources During Solar Flares." American Astronomical Society Meeting Abstracts #220 220 #204.10-

                                                                                                                                                                                            
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