DETECTION OF HIGH-ENERGY GAMMA-RAY EMISSION DURING THE X-RAY FLARING ACTIVITY IN GRB 100728A

被引：75

作者：

Abdo, A. A. ^{[1
]}

Ackermann, M. ^{[2
,3
]}

Ajello, M. ^{[2
,3
]}

Baldini, L. ^{[4
]}

Ballet, J. ^{[5
]}

Barbiellini, G. ^{[6
,7
]}

Baring, M. G. ^{[8
]}

Bastieri, D. ^{[9
,10
]}

Bechtol, K. ^{[2
,3
]}

Bellazzini, R. ^{[4
]}

Berenji, B. ^{[2
,3
]}

Bhat, P. N. ^{[11
]}

Bissaldi, E. ^{[12
,13
]}

Blandford, R. D. ^{[2
,3
]}

Bonamente, E. ^{[14
,15
]}

Bonnell, J. ^{[16
,17
,18
]}

Borgland, A. W. ^{[2
,3
]}

Bouvier, A. ^{[2
,3
,15
,19
,20
,22
]}

Bregeon, J. ^{[4
]}

Brigida, M. ^{[21
,22
]}

Bruel, P. ^{[23
]}

Buehler, R. ^{[2
,3
]}

Buson, S. ^{[9
,10
]}

Caliandro, G. A. ^{[24
]}

Cameron, R. A. ^{[2
,3
]}

Caraveo, P. A. ^{[25
]}

Casandjian, J. M. ^{[5
]}

Cecchi, C. ^{[14
,15
]}

Charles, E. ^{[2
,3
]}

Chekhtman, A. ^{[3
,15
,26
]}

Chiang, J. ^{[2
,3
]}

Ciprini, S. ^{[15
]}

Claus, R. ^{[2
,3
]}

Connaughton, V. ^{[11
]}

Conrad, J. ^{[27
,28
]}

Cutini, S. ^{[29
]}

de Angelis, A. ^{[15
,30
,31
]}

de Palma, F. ^{[21
,22
]}

Dermer, C. D. ^{[32
]}

do Couto e Silva, E. ^{[2
,3
]}

Drell, P. S. ^{[2
,3
]}

Dubois, R. ^{[2
,3
]}

Favuzzi, C. ^{[21
,22
]}

Fukazawa, Y. ^{[33
]}

Fusco, P. ^{[21
,22
]}

Gargano, F. ^{[22
]}

Gehrels, N. ^{[16
]}

Germani, S. ^{[14
,15
]}

Giglietto, N. ^{[21
,22
]}

Giommi, P. ^{[29
]}

机构：

[1] George Mason Univ, Ctr Earth Observing & Space Res, Coll Sci, Fairfax, VA 22030 USA

[2] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA

[3] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA

[4] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy

[5] Univ Paris Diderot, Lab AIM, CEA, IRFU,CNRS,Serv Astrophys,CEA Saclay, F-91191 Gif Sur Yvette, France

[6] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy

[7] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy

[8] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA

[9] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[10] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy

[11] Univ Alabama, CSPAR, Huntsville, AL 35899 USA

[12] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria

[13] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

[14] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy

[15] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy

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

[17] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[18] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[19] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA

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

[21] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy

[22] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy

[23] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France

[24] CSIC, IEEC, Inst Ciencies Espai, Barcelona 08193, Spain

[25] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy

[26] Artep Inc, Ellicott City, MD 21042 USA

[27] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden

[28] Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden

[29] Agenzia Spaziale Italiana, Sci Data Ctr, I-00044 Rome, Italy

[30] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy

[31] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy

[32] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA

[33] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan

[34] INAF Ist Radioastron, I-40129 Bologna, Italy

[35] Univ Hertfordshire, Sci & Technol Res Inst, Ctr Astrophys Res, Hatfield AL10 9AB, Herts, England

[36] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA

[37] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland

[38] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan

[39] IRAP, CNRS, F-31028 Toulouse 4, France

[40] Univ Toulouse, UPS OMP, IRAP, Toulouse, France

[41] Univ Bordeaux 1, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France

[42] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

[43] CRESST, Greenbelt, MD 20771 USA

[44] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy

[45] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA

[46] Univ Montpellier 2, Lab Universe & Particules Montpellier, CNRS, IN2P3, Montpellier, France

[47] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan

[48] JAXA, Inst Space & Astronaut Sci, Chuo Ku, Kanagawa 2525210, Japan

[49] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany

[50] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2011年 / 734卷 / 02期

关键词：

gamma-ray burst: individual (GRB100728A); radiation mechanisms: non-thermal; AFTERGLOW LIGHT CURVES; FERMI OBSERVATIONS; BURST; SWIFT; TELESCOPE; MISSION; FLARES; COMPONENTS; EVOLUTION; ONSET;

D O I：

10.1088/2041-8205/734/2/L27

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the simultaneous Swift and Fermi observations of the bright GRB 100728A and its afterglow. The early X-ray emission is dominated by a vigorous flaring activity continuing until 1 ks after the burst. In the same time interval, high-energy emission is significantly detected by the Fermi/Large Area Telescope. Marginal evidence of GeV emission is observed up to later times. We discuss the broadband properties of this burst within both the internal and external shock scenarios, with a particular emphasis on the relation between X-ray flares, the GeV emission, and a continued long-duration central engine activity as their power source.

引用

页数：6

共 37 条

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