A Unified Model of Short and Long Gamma-Ray Bursts, X-Rayndashrich Gamma-Ray Bursts, and X-Ray Flashes
Astrophysical Journal Letters Volume 607 Issue 2
Page L103-L106
published_at 2004-06
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| File | |
| Title ( eng ) |
A Unified Model of Short and Long Gamma-Ray Bursts, X-Rayndashrich Gamma-Ray Bursts, and X-Ray Flashes
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| Creator |
Yamazaki Ryo
Ioka Kunihito
Nakamura Takashi
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| Source Title |
Astrophysical Journal Letters
|
| Volume | 607 |
| Issue | 2 |
| Start Page | L103 |
| End Page | L106 |
| Abstract |
Taking into account the recent suggestion that a short gamma-ray burst (GRB) looks like the first 1 s of a long GRB, we propose that the jet of a GRB consists of multiple subjets or subshells (i.e., an inhomogeneous jet model). The multiplicity of the subjets along a line of sight n(s) is an important parameter. If n(s) is large (much greater than1) the event looks like a long GRB, while if n(s) is small (similar to1) the event looks like a short GRB. If our line of sight is off-axis to any subjets, the event looks like an X-ray flash or an X-ray-rich GRB. The lognormal distribution of durations of short and long GRBs are also suggested in the same model.
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| Keywords |
gamma rays
bursts
theory
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| NDC |
Earth sciences. Geology [ 450 ]
|
| Language |
eng
|
| Resource Type | journal article |
| Publisher |
University of Chicago Press
|
| Date of Issued | 2004-06 |
| Rights |
Copyright (c) 2004 The American Astronomical Society
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0004-637X
[DOI] 10.1086/421872
[DOI] http://dx.doi.org/10.1086/421872
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