Limits on the GeV emission from gamma-ray bursts

被引：24
作者：
Beniamini, P. [1 ]
Guetta, D. [2 ]
Nakar, E. [3 ]
Piran, T. [1 ]
机构：
[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel
[2] Osserv Astron Roma, I-00040 Monte Porzio Catone, Italy
[3] Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2011年 / 416卷 / 04期
基金：
以色列科学基金会;
关键词：
gamma-ray burst: general; HIGH-ENERGY EMISSION; SELF-COMPTON EMISSION; SPECTRAL COMPONENT; FERMI OBSERVATIONS; LORENTZ FACTORS; GRB; 090510; SYNCHROTRON; PROMPT; SHOCKS; TELESCOPE;
D O I：
10.1111/j.1365-2966.2011.19259.x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The Large Area Telescope (LAT) on-board the Fermi satellite detected emission above 20MeV only in a small fraction of the long gamma-ray bursts (GRBs) detected by the Fermi Gamma-ray Burst Monitor (GBM) at 8 keV-40MeV. Those bursts that were detected by the LAT were among the brightest GBM bursts. We examine a sample of the most luminous GBM bursts with no LAT detection and obtain upper limits on their high energy fluence. We find an average upper limit of LAT/GBM fluence ratio of 0.13 for GeV fluence during T-90 and an average upper limit ratio of 0.45 for GeV fluence during the first 600 s after the trigger. These ratios strongly constrain various emission models and in particular rule out synchrotron self-Compton models for the prompt emission. In about a third of both LAT-detected and LAT-non-detected bursts, we find that the extrapolation of the MeV range Band spectrum to the GeV range is larger than the observed GeV fluence (or its upper limit). While this excess is not highly significant for any specific burst, the overall excess in a large fraction of the bursts suggests a decline in the high-energy spectral slope in at least some of these bursts, possibly an evidence for the long sought-after pair creation limit.
引用
收藏
页码：3089 / 3097
页数：9
相关论文
共 87 条
  • [1] FERMI DETECTION DELAYED GeV EMISSION FROM THE SHORT GAMMA-RAY BURST 081024B
    Abdo, A. A.
    Ackermann, M.
    Ajello, M.
    Asano, K.
    Atwood, W. B.
    Axelsson, M.
    Baldini, L.
    Ballet, J.
    Barbiellini, G.
    Bastieri, D.
    Baughman, B. M.
    Bechtol, K.
    Bellazzini, R.
    Berenji, B.
    Bhat, P. N.
    Bissaldi, E.
    Blandford, R. D.
    Bloom, E. D.
    Bonamente, E.
    Borgland, A. W.
    Bouvier, A.
    Bregeon, J.
    Brez, A.
    Briggs, M. S.
    Brigida, M.
    Bruel, P.
    Burgess, J. M.
    Burnett, T. H.
    Buson, S.
    Caliandro, G. A.
    Cameron, R. A.
    Caraveo, P. A.
    Carrigan, S.
    Casandjian, J. M.
    Cecchi, C.
    Celik, Oe
    Chaplin, V.
    Charles, E.
    Chekhtman, A.
    Chiang, J.
    Ciprini, S.
    Claus, R.
    Cohen-Tanugi, J.
    Cominsky, L. R.
    Connaughton, V.
    Conrad, J.
    Cutini, S.
    Dermer, C. D.
    de Angelis, A.
    de Palma, F.
    [J]. ASTROPHYSICAL JOURNAL, 2010, 712 (01) : 558 - 564
  • [2] FERMI OBSERVATIONS OF GRB 090902B: A DISTINCT SPECTRAL COMPONENT IN THE PROMPT AND DELAYED EMISSION
    Abdo, A. A.
    Ackermann, M.
    Ajello, M.
    Asano, K.
    Atwood, W. B.
    Axelsson, M.
    Baldini, L.
    Ballet, J.
    Barbiellini, G.
    Baring, M. G.
    Bastieri, D.
    Bechtol, K.
    Bellazzini, R.
    Berenji, B.
    Bhat, P. N.
    Bissaldi, E.
    Blandford, R. D.
    Bloom, E. D.
    Bonamente, E.
    Borgland, A. W.
    Bouvier, A.
    Bregeon, J.
    Brez, A.
    Briggs, M. S.
    Brigida, M.
    Bruel, P.
    Burgess, J. M.
    Burrows, D. N.
    Buson, S.
    Caliandro, G. A.
    Cameron, R. A.
    Caraveo, P. A.
    Casandjian, J. M.
    Cecchi, C.
    Celik, Oe.
    Chekhtman, A.
    Cheung, C. C.
    Chiang, J.
    Ciprini, S.
    Claus, R.
    Cohen-Tanugi, J.
    Cominsky, L. R.
    Connaughton, V.
    Conrad, J.
    Cutini, S.
    d'Elia, V.
    Dermer, C. D.
    de Angelis, A.
    de Palma, F.
    Digel, S. W.
    [J]. ASTROPHYSICAL JOURNAL LETTERS, 2009, 706 (01) : L138 - L144
  • [3] Fermi Observations of High-Energy Gamma-Ray Emission from GRB 080916C
    Abdo, A. A.
    Ackermann, M.
    Arimoto, M.
    Asano, K.
    Atwood, W. B.
    Axelsson, M.
    Baldini, L.
    Ballet, J.
    Band, D. L.
    Barbiellini, G.
    Baring, M. G.
    Bastieri, D.
    Battelino, M.
    Baughman, B. M.
    Bechtol, K.
    Bellardi, F.
    Bellazzini, R.
    Berenji, B.
    Bhat, P. N.
    Bissaldi, E.
    Blandford, R. D.
    Bloom, E. D.
    Bogaert, G.
    Bogart, J. R.
    Bonamente, E.
    Bonnell, J.
    Borgland, A. W.
    Bouvier, A.
    Bregeon, J.
    Brez, A.
    Briggs, M. S.
    Brigida, M.
    Bruel, P.
    Burnett, T. H.
    Burrows, D.
    Busetto, G.
    Caliandro, G. A.
    Cameron, R. A.
    Caraveo, P. A.
    Casandjian, J. M.
    Ceccanti, M.
    Cecchi, C.
    Celotti, A.
    Charles, E.
    Chekhtman, A.
    Cheung, C. C.
    Chiang, J.
    Ciprini, S.
    Claus, R.
    Cohen-Tanugi, J.
    [J]. SCIENCE, 2009, 323 (5922) : 1688 - 1693
  • [4] FERMI OBSERVATIONS OF GRB 090510: A SHORT-HARD GAMMA-RAY BURST WITH AN ADDITIONAL, HARD POWER-LAW COMPONENT FROM 10 keV TO GeV ENERGIES
    Ackermann, M.
    Asano, K.
    Atwood, W. B.
    Axelsson, M.
    Baldini, L.
    Ballet, J.
    Barbiellini, G.
    Baring, M. G.
    Bastieri, D.
    Bechtol, K.
    Bellazzini, R.
    Berenji, B.
    Bhat, P. N.
    Bissaldi, E.
    Blandford, R. D.
    Bloom, E. D.
    Bonamente, E.
    Borgland, A. W.
    Bouvier, A.
    Bregeon, J.
    Brez, A.
    Briggs, M. S.
    Brigida, M.
    Bruel, P.
    Buson, S.
    Caliandro, G. A.
    Cameron, R. A.
    Caraveo, P. A.
    Carrigan, S.
    Casandjian, J. M.
    Cecchi, C.
    Celik, Oe.
    Charles, E.
    Chiang, J.
    Ciprini, S.
    Claus, R.
    Cohen-Tanugi, J.
    Connaughton, V.
    Conrad, J.
    Dermer, C. D.
    de Palma, F.
    Dingus, B. L.
    do Couto e Silva, E.
    Drell, P. S.
    Dubois, R.
    Dumora, D.
    Farnier, C.
    Favuzzi, C.
    Fegan, S. J.
    Finke, J.
    [J]. ASTROPHYSICAL JOURNAL, 2010, 716 (02) : 1178 - 1190
  • [5] GeV EMISSION FROM PROMPT AND AFTERGLOW PHASES OF GAMMA-RAY BURSTS
    Ando, Shin'ichiro
    Nakar, Ehud
    Sari, Re'em
    [J]. ASTROPHYSICAL JOURNAL, 2008, 689 (02) : 1150 - 1160
  • [6] CAN WE PROBE THE LORENTZ FACTOR OF GAMMA-RAY BURSTS FROM GeV-TeV SPECTRA INTEGRATED OVER INTERNAL SHOCKS?
    Aoi, Junichi
    Murase, Kohta
    Takahashi, Keitaro
    Ioka, Kunihito
    Nagataki, Shigehiro
    [J]. ASTROPHYSICAL JOURNAL, 2010, 722 (01) : 440 - 451
  • [7] Atwood W. B., 2009, APJ, V697, p1071A
  • [8] BATSE OBSERVATIONS OF GAMMA-RAY BURST SPECTRA .1. SPECTRAL DIVERSITY
    BAND, D
    MATTESON, J
    FORD, L
    SCHAEFER, B
    PALMER, D
    TEEGARDEN, B
    CLINE, T
    BRIGGS, M
    PACIESAS, W
    PENDLETON, G
    FISHMAN, G
    KOUVELIOTOU, C
    MEEGAN, C
    WILSON, R
    LESTRADE, P
    [J]. ASTROPHYSICAL JOURNAL, 1993, 413 (01) : 281 - 292
  • [9] PROSPECTS FOR GRB SCIENCE WITH THE FERMI LARGE AREA TELESCOPE
    Band, D. L.
    Axelsson, M.
    Baldini, L.
    Barbiellini, G.
    Baring, M. G.
    Bastieri, D.
    Battelino, M.
    Bellazzini, R.
    Bissaldi, E.
    Bogaert, G.
    Bonnell, J.
    Chiang, J.
    Cohen-Tanugi, J.
    Connaughton, V.
    Cutini, S.
    de Palma, F.
    Dingus, B. L.
    do Couto e Silva, E.
    Fishman, G.
    Galli, A.
    Gehrels, N.
    Giglietto, N.
    Granot, J.
    Guiriec, S.
    Hughes, R. E.
    Kamae, T.
    Komin, N.
    Kuehn, F.
    Kuss, M.
    Longo, F.
    Lubrano, P.
    Kippen, R. M.
    Mazziotta, M. N.
    McEnery, J. E.
    McGlynn, S.
    Moretti, E.
    Nakamori, T.
    Norris, J. P.
    Ohno, M.
    Olivo, M.
    Omodei, N.
    Pelassa, V.
    Piron, F.
    Preece, R.
    Razzano, M.
    Russell, J. J.
    Ryde, F.
    Parkinson, P. M. Saz
    Scargle, J. D.
    Sgro, C.
    [J]. ASTROPHYSICAL JOURNAL, 2009, 701 (02) : 1673 - 1694
  • [10] Bissaldi E, 2009, 9933 GCN, P9933
123456789