Delayed flashes from counterjets of gamma-ray bursts

被引：16
|
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 | 2003年 / 591卷 / 01期
关键词：
gamma rays : bursts; gamma rays : theory;
D O I：
10.1086/375261
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
If X-ray. ashes are due to the forward-jet emissions from gamma-ray bursts (GRBs) observed at large viewing angles, we show that a prompt emission from a counterjet should be observed as a "delayed. ash" in the UV or optical band several hours to a day after the X-ray. ash. The Ultraviolet and Optical Telescope on Swift can observe the delayed. ashes within similar to13 Mpc, so that (double-sided) jets of GRBs can be directly confirmed. Since the event rate of delayed. ashes detected by Swift may be as small as similar to6 x 10(-5) events yr(-1), we require more sensitive detectors in future experiments.
引用
收藏
页码：283 / 287
页数：5
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