2012ApJ...745..144A

Query : 2012ApJ...745..144A

2012ApJ...745..144A - Astrophys. J., 745, 144 (2012/February-1)

Fermi detection of γ-ray emission from the M2 soft X-ray flare on 2010 June 12.

ACKERMANN M., AJELLO M., ALLAFORT A., ATWOOD W.B., BALDINI L., BARBIELLINI G., BASTIERI D., BECHTOL K., BELLAZZINI R., BHAT P.N., BLANDFORD R.D., BONAMENTE E., BORGLAND A.W., BREGEON J., BRIGGS M.S., BRIGIDA M., BRUEL P., BUEHLER R., BURGESS J.M., BUSON S., CALIANDRO G.A., CAMERON R.A., CASANDJIAN J.M., CECCHI C., CHARLES E., CHEKHTMAN A., CHIANG J., CIPRINI S., CLAUS R., COHEN-TANUGI J., CONNAUGHTON V., CONRAD J., CUTINI S., DENNIS B.R., DE PALMA F., DERMER C.D., DIGEL S.W., DO COUTO E SILVA E., DRELL P.S., DRLICA-WAGNER A., DUBOIS R., FAVUZZI C., FEGAN S.J., FERRARA E.C., FORTIN P., FUKAZAWA Y., FUSCO P., GARGANO F., GERMANI S., GIGLIETTO N., GIORDANO F., GIROLETTI M., GLANZMAN T., GODFREY G., GRILLO L., GROVE J.E., GRUBER D., GUIRIEC S., HADASCH D., HAYASHIDA M., HAYS E., HORAN D., IAFRATE G., JOHANNESSON G., JOHNSON A.S., JOHNSON W.N., KAMAE T., KIPPEN R.M., KNODLSEDER J., KUSS M., LANDE J., LATRONICO L., LONGO F., LOPARCO F., LOTT B., LOVELLETTE M.N., LUBRANO P., MAZZIOTTA M.N., McENERY J.E., MEEGAN C., MEHAULT J., MICHELSON P.F., MITTHUMSIRI W., MONTE C., MONZANI M.E., MORSELLI A., MOSKALENKO I.V., MURGIA S., MURPHY R., NAUMANN-GODO M., NUSS E., NYMARK T., OHNO M., OHSUGI T., OKUMURA A., OMODEI N., ORLANDO E., PACIESAS W.S., PANETTA J.H., PARENT D., PESCE-ROLLINS M., PETROSIAN V., PIERBATTISTA M., PIRON F., PIVATO G., POON H., PORTER T.A., PREECE R., RAINO S., RANDO R., RAZZANO M., RAZZAQUE S., REIMER A., REIMER O., RITZ S., SBARRA C., SCHWARTZ R.A., SGRO C., SHARE G.H., SISKIND E.J., SPINELLI P., TAKAHASHI H., TANAKA T., TANAKA Y., THAYER J.B., TIBALDO L., TINIVELLA M., TOLBERT A.K., TOSTI G., TROJA E., UCHIYAMA Y., USHER T.L., VANDENBROUCKE J., VASILEIOU V., VIANELLO G., VITALE V., VON KIENLIN A., WAITE A.P., WILSON-HODGE C., WOOD D.L., WOOD K.S. and YANG Z.

Abstract (from CDS):

The Geostationary Operational Environmental Satellite (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 ∼50 s impulsive burst of hard X- and γ-ray emission up to at least 400 MeV observed by the Fermi Gamma-ray Burst Monitor and Large Area Telescope experiments. The remarkably similar hard X-ray and high-energy γ-ray time profiles suggest that most of the particles were accelerated to energies ≳ 300 MeV with a delay of ∼10 s from mildly relativistic electrons, but some reached these energies in as little as ∼3 s. The γ-ray line fluence from this flare was about 10 times higher than that typically observed from this modest GOES class of X-ray flare. There is no evidence for time-extended >100 MeV emission as has been found for other flares with high-energy γ-rays.

Abstract Copyright: ∼

Journal keyword(s): acceleration of particles - Sun: flares - Sun: particle emission - Sun: X-rays, gamma rays

Errata: erratum vol. 748, art. 151 (2012)

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 M 1 SNR 05 34 30.9 +22 00 53           ~ 6193 1
2 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2316 1

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