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Expected Characteristics of the Subclass of Supernova Gamma-Ray Bursts

Bloom, J. S. and Kulkarni, S. R. and Harrison, Fiona A. and Prince, Thomas A. and Phinney, E. S. and Frail, D. A. (1998) Expected Characteristics of the Subclass of Supernova Gamma-Ray Bursts. Astrophysical Journal Letters, 506 (2). L105-L108. ISSN 2041-8205.

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The spatial and temporal coincidence of gamma-ray burst (GRB) 980425 and supernova (SN) 1998bw has prompted speculation that there exists a subclass of GRBs produced by SNe (“S-GRBs”). A physical model motivated by radio observations lead us to propose the following characteristics of S-GRBs: (1) prompt radio emission and an implied high brightness temperature close to the inverse Compton limit, (2) high expansion velocity (≳50,000 km s21) of the optical photosphere as derived from lines widths and energy release larger than usual, (3) no long-lived X-ray afterglow, and (4) a single-pulse GRB profile. Radio studies of previous SNe show that only (but not all) Type Ib and Ic SNe potentially satisfy the first condition. We investigate the proposed associations of GRBs and SNe within the context of these proposed criteria and suggest that ~1% of GRBs detected by BATSE may be members of this subclass.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Bloom, J. S.0000-0002-7777-216X
Kulkarni, S. R.0000-0001-5390-8563
Harrison, Fiona A.0000-0003-2992-8024
Prince, Thomas A.0000-0002-8850-3627
Additional Information:Copyright 1998 American Astronomical Society. Received 1998 July 8, accepted for publication 1998 August 18 Published 1998 September 10. We thank J. Sievers, R. Simcoe, E. Waxman, B. Kirshner, A. Filippenko, S. Sigurdsson, and E. E. Fenimore for helpful discussions and direction at various stages of this work. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. S. R. K. and J. S. B. are supported by the NSF and NASA.
Group:Space Radiation Laboratory, TAPIR
Funding AgencyGrant Number
Non-Subject Keywords:gamma rays: bursts; supernovae: general; supernovae: individual (SN 1998bw)
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Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1998-13
Issue or Number:2
Record Number:CaltechAUTHORS:20150108-095003720
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53332
Deposited By: Deborah Miles
Deposited On:09 Jan 2015 17:32
Last Modified:09 Mar 2020 13:18

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