Bright X-ray flares in gamma-ray burst afterglows

被引：492

作者：

Burrows, DN ^{[1
]}

Romano, P

Falcone, A

Kobayashi, S

Zhang, B

Moretti, A

O'Brien, PT

Goad, MR

Campana, S

Page, KL

Angelini, L

Barthelmy, S

Beardmore, AP

Capalbi, M

Chincarini, G

Cummings, J

Cusumano, G

Fox, D

Giommi, P

Hill, JE

Kennea, JA

Krimm, H

Mangano, V

Marshall, F

Mészáros, P

Morris, DC

Nousek, JA

Osborne, JP

Pagani, C

Perri, M

Tagliaferri, G

Wells, AA

Woosley, S

Gehrels, N

机构：

[1] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA

[2] Osserv Astron Brera, INAF, I-23807 Merate, Italy

[3] Penn State Univ, Ctr Gravitat Wave Phys, Davey Lab 104, University Pk, PA 16802 USA

[4] Univ Nevada, Dept Phys, Las Vegas, NV 89154 USA

[5] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England

[6] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[7] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[8] Agenzia Spaziale Italiana Sci Data Ctr, I-00044 Frascati, Italy

[9] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy

[10] INAF Ist Astrofis Spaziale & Fis Cosm, Sez Palermo, I-90146 Palermo, Italy

[11] CALTECH, Dept Astron, Pasadena, CA 91125 USA

[12] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA

来源：

SCIENCE | 2005年 / 309卷 / 5742期

关键词：

D O I：

10.1126/science.1116168

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Gamma-ray burst (GRB) afterglows have provided important clues to the nature of these massive explosive events, providing direct information on the nearby environment and indirect information on the central engine that powers the burst. We report the discovery of two bright x-ray flares in GRB afterglows, including a giant flare comparable in total energy to the burst itself, each peaking minutes after the burst. These strong rapid x-ray flares imply that the central engines of the bursts have long periods of activity, with strong internal shocks continuing for hundreds of seconds after the gamma-ray emission has ended.

引用

页码：1833 / 1835

页数：3

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