Peak energy-isotropic energy relation in the off-axis gamma-ray burst model
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.
Journal
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- Astrophysical Journal
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Astrophysical Journal 606 (1), L33-L36, 2004-05
University of Chicago Press
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Details
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- CRID
- 1050296265988158336
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- NII Article ID
- 120000880592
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- CiNii Articles