| タイトル | Fermi Detection of Gamma-Ray Emission from the M2 Soft X-Ray Flare on 2010 June 12 |
| 本文（外部サイト） | http://hdl.handle.net/2060/20120008396 |
| 著者（英） | Bellazzini, R.; Cameron, R. A.; Ajello, M.; Atwood, W. B.; Baldini, L.; Blandford, R. D.; Barbiellini, G.; Brigida, M.; Bonamente, E.; Gruber, D.; Briggs, M. S.; Buson, S.; Buehler, R.; Bastieri, D.; Casandjian, J. M.; Caliandro, G. A.; Ackermann, M.; Burgess, J. M.; Bechtol, K.; Allafort, A.; Bhat, P. N.; Borgland, A. W.; Bruel, P.; Troja, E.; Bregeon, J. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2012-01-01 |
| 言語 | eng |
| 内容記述 | The GOES M2-class solar flare, SOL2010-06-12T00:57, was modest in many respects yet exhibited remarkable acceleration of energetic particles. The flare produced an approximately 50 s impulsive burst of hard X- and gamma-ray emission up to at least 400 MeV observed by the Fermi GBM and LAT experiments. The remarkably similar hard X-ray and high-energy gamma-ray time profiles suggest that most of the particles were accelerated to energies greater than or equal to 300 MeV with a delay of approximately 10 s from mildly relativistic electrons, but some reached these energies in as little as approximately 3 s. The gamma-ray line fluence from this flare was about ten times higher than that typically observed from this modest GOES class of X-ray flare. There is no evidence for time-extended greater than 100 MeV emission as has been found for other flares with high-energy gamma rays. |
| NASA分類 | Astronomy |
| レポートNO | GSFC.JA.7277.2012
GSFC.JA.5878.2012 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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