Saturated Compton cooling model of cosmological gamma-ray bursts

被引:50
作者
Liang, EP
机构
[1] Department of Space Physics and Astronomy, Rice University, MS 108, Houston
基金
美国国家航空航天局;
关键词
gamma rays; bursts;
D O I
10.1086/311046
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We revisit the saturated Compton cooling model of gamma-ray burst pulse decay in the context of cosmological scenarios. We find that for pulse duration of similar to 1 s, this model is consistent with Gpc distance if the Compton cooling plasma is a relativistically expanding thin shell of bulk Lorentz factor greater than or equal to 10(2), radius similar to 10(15) cm, thickness greater than or equal to 10(11)-10(12) cm, comoving lepton density greater than or equal to 10(13) cm(-3) and is dominated by a thermal population of keV comoving temperature, with less than a few percent nonthermal population.
引用
收藏
页码:L15 / L18
页数:4
相关论文
共 21 条
  • [1] 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
  • [2] COSTA E, 1997, 6576 IAU
  • [3] Costa E, 1997, 6572 IAU
  • [4] COSTA E, 1997, 6533 IAU
  • [5] Evolution of the low-energy photon spectra in gamma-ray bursts
    Crider, A
    Liang, EP
    Smith, IA
    Preece, RD
    Briggs, MS
    Pendleton, GN
    Paciesas, WS
    Band, DL
    Matteson, JL
    [J]. ASTROPHYSICAL JOURNAL, 1997, 479 (01) : L39 - L42
  • [6] DJORGOVSKI SG, 1997, IN PRESS NATURE
  • [7] Expanding relativistic shells and gamma-ray burst temporal structure
    Fenimore, EE
    Madras, CD
    Nayakshin, S
    [J]. ASTROPHYSICAL JOURNAL, 1996, 473 (02) : 998 - 1012
  • [8] FRAIL DA, 1997, 6576 IAU
  • [9] CORRELATION BETWEEN LUMINOSITY AND TEMPERATURE IN GAMMA-RAY BURST SOURCES
    GOLENETSKII, SV
    MAZETS, EP
    APTEKAR, RL
    ILYINSKII, VN
    [J]. NATURE, 1983, 306 (5942) : 451 - 453
  • [10] Physical model of gamma-ray burst spectral evolution
    Liang, E
    Kusunose, M
    Smith, IA
    Crider, A
    [J]. ASTROPHYSICAL JOURNAL, 1997, 479 (01) : L35 - L38