A unified model of short and long gamma-ray bursts, X-ray-rich gamma-ray bursts, and X-ray flashes

R. Yamazaki; K. Ioka; T. Nakamura; K. Toma

doi:10.1393/ncc/i2005-10084-6

A unified model of short and long gamma-ray bursts, X-ray-rich gamma-ray bursts, and X-ray flashes

R. Yamazaki, K. Ioka, T. Nakamura, K. Toma

Research output: Contribution to journal › Article › peer-review

Abstract

We propose a possible unified model of short and long gamma-ray bursts (GRBs), X-ray-rich GRBs, and X-ray flashes. The jet of a GRB is assumed to consist of many emitting sub-shells, that is called sub-jet emissions (i.e., an inhomogeneous jet model). The multiplicity of the sub-jets along a line of sight n_s is an important parameter. If n_s is large (≫ 1) the event looks like a long GRB, while if n_s = 1, the event looks like a short GRB. Finally, when n_s = 0, the event looks like an X-ray flash or an X-ray-rich GRB.

Original language	English
Pages (from-to)	463-466
Number of pages	4
Journal	Nuovo Cimento della Societa Italiana di Fisica C
Volume	28
Issue number	3
DOIs	https://doi.org/10.1393/ncc/i2005-10084-6
Publication status	Published - 2005
Externally published	Yes

ASJC Scopus subject areas

Astronomy and Astrophysics
Physics and Astronomy (miscellaneous)

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abstract = "We propose a possible unified model of short and long gamma-ray bursts (GRBs), X-ray-rich GRBs, and X-ray flashes. The jet of a GRB is assumed to consist of many emitting sub-shells, that is called sub-jet emissions (i.e., an inhomogeneous jet model). The multiplicity of the sub-jets along a line of sight ns is an important parameter. If ns is large (≫ 1) the event looks like a long GRB, while if ns = 1, the event looks like a short GRB. Finally, when ns = 0, the event looks like an X-ray flash or an X-ray-rich GRB.",

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AU - Toma, K.

PY - 2005

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AB - We propose a possible unified model of short and long gamma-ray bursts (GRBs), X-ray-rich GRBs, and X-ray flashes. The jet of a GRB is assumed to consist of many emitting sub-shells, that is called sub-jet emissions (i.e., an inhomogeneous jet model). The multiplicity of the sub-jets along a line of sight ns is an important parameter. If ns is large (≫ 1) the event looks like a long GRB, while if ns = 1, the event looks like a short GRB. Finally, when ns = 0, the event looks like an X-ray flash or an X-ray-rich GRB.

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A unified model of short and long gamma-ray bursts, X-ray-rich gamma-ray bursts, and X-ray flashes

Abstract

ASJC Scopus subject areas

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