CAN RELATIVISTIC BEAMING OF GAMMA-RAY BURSTS MIMIC COSMOLOGICAL TIME DILATION

被引：8

作者：

YI, IS

MAO, SD

机构：

[1] Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.72.3750

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

If gamma-ray bursts are at cosmological distances, durations and variability time scales of faint bursts are expected to be systematically longer than those of bright bursts due to cosmological time dilation. A recent analysis of data from the Burst and Transient Source Experiment (BATSE) reported detection of such a signal. We show that relativistic beaming can produce similar flux-duration relations both in the Galactic halo model and in the cosmological model with duration ranges comparable to the reported one.

引用

页码：3750 / 3753

页数：4