Peak energy-isotropic energy relation in the off-axis gamma-ray burst model
Astrophysical Journal Volume 606 Issue 1
Page L33-L36
published_at 2004-05
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| File | |
| Title ( eng ) |
Peak energy-isotropic energy relation in the off-axis gamma-ray burst model
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| Creator |
Yamazaki Ryo
Ioka Kunihito
Nakamura Takashi
|
| Source Title |
Astrophysical Journal
|
| Volume | 606 |
| Issue | 1 |
| Start Page | L33 |
| End Page | L36 |
| Abstract |
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.
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| Keywords |
gamma rays
bursts
theory
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| NDC |
Earth sciences. Geology [ 450 ]
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| Language |
eng
|
| Resource Type | journal article |
| Publisher |
University of Chicago Press
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| Date of Issued | 2004-05 |
| 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] 10.1086/421084
[DOI] http://dx.doi.org/10.1086/421084
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