Peak energy-isotropic energy relation in the off-axis gamma-ray burst model

被引：73

作者：

Yamazaki, R ^{[1
]}

Ioka, K

Nakamura, T

机构：

[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[2] Osaka Univ, Dept Earth & Space Sci, Toyonaka, Osaka 5600043, Japan

来源：

ASTROPHYSICAL JOURNAL | 2004年 / 606卷 / 01期

关键词：

gamma rays : bursts; gamma rays : theory;

D O I：

10.1086/421084

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using a simple uniform jet model of prompt emissions of gamma-ray bursts (GRBs), we reproduce the observed peak energy - isotropic energy relation. A Monte Carlo simulation shows that the low isotropic energy part of the relation is dominated by events viewed from off-axis directions, and the number of the off-axis events is about one-third of the on-axis emissions. We also compute the observed event rates of the GRBs, the X-ray - rich GRBs, and the X-ray flashes detected by High Energy Transient Explorer 2, and we find that they are similar.

引用

收藏

页码：L33 / L36

页数：4

相关论文

共 44 条

[1] Intrinsic spectra and energetics of BeppoSAX Gamma-Ray Bursts with known redshifts [J].

Amati, L ;

Frontera, F ;

Tavani, M ;

in't Zand, JJM ;

Antonelli, A ;

Costa, E ;

Feroci, M ;

Guidorzi, C ;

Heise, J ;

Masetti, N ;

Montanari, E ;

Nicastro, L ;

Palazzi, E ;

Pian, E ;

Piro, L ;

Soffitta, P .

ASTRONOMY & ASTROPHYSICS, 2002, 390 (01) :81-89

[2] Fast X-ray transients and their connection to gamma-ray bursts [J].

Arefiev, VA ;

Priedhorsky, WC ;

Borozdin, KN .

ASTROPHYSICAL JOURNAL, 2003, 586 (02) :1238-1249

[3] A simple empirical redshift indicator for gamma-ray bursts [J].

Atteia, JL .

ASTRONOMY & ASTROPHYSICS, 2003, 407 (01) :L1-L4

[4] BATSE OBSERVATIONS OF GAMMA-RAY BURST SPECTRA .1. SPECTRAL DIVERSITY [J].

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 .

ASTROPHYSICAL JOURNAL, 1993, 413 (01) :281-292

[5] Comparison of the gamma-ray burst sensitivity of different detectors [J].

Band, DL .

ASTROPHYSICAL JOURNAL, 2003, 588 (02) :945-951

[6] Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE [J].

Barraud, C ;

Olive, JF ;

Lestrade, JP ;

Atteia, JL ;

Hurley, K ;

Ricker, G ;

Lamb, DQ ;

Kawai, N ;

Boer, M ;

Dezalay, JP ;

Pizzichini, G ;

Vanderspek, R ;

Crew, G ;

Doty, J ;

Monnelly, G ;

Villasenor, J ;

Butler, N ;

Levine, A ;

Yoshida, A ;

Shirasaki, Y ;

Sakamoto, T ;

Tamagawa, T ;

Torii, K ;

Matsuoka, M ;

Fenimore, EE ;

Galassi, A ;

Tavenner, T ;

Donaghy, TQ ;

Graziani, C ;

Jernigan, JG .

ASTRONOMY & ASTROPHYSICS, 2003, 400 (03) :1021-1030

[7] Gamma-ray burst energetics and the gamma-ray burst Hubble diagram: Promises and limitations [J].

Bloom, JS ;

Frail, DA ;

Kulkarni, SR .

ASTROPHYSICAL JOURNAL, 2003, 594 (02) :674-683

[8] The first two host galaxies of X-ray flashes: XRF 011030 and XRF 020427 [J].

Bloom, JS ;

Fox, D ;

van Dokkum, PG ;

Kulkarni, SR ;

Berger, E ;

Djorgovski, SG ;

Frail, DA .

ASTROPHYSICAL JOURNAL, 2003, 599 (02) :957-963

[9] The physics of pulses in gamma-ray bursts: emission processes, temporal profiles and time-lags [J].

Daigne, F ;

Mochkovitch, R .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2003, 342 (02) :587-592

[10]

DAR A, 2004, IN PRESS A A

← 1 2 3 4 5 →