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Is there cosmological time dilation in gamma-ray bursts?Norris et al. report that the temporal structure of faint gamma-ray bursts is longer than that of bright bursts, as expected for time dilation in the cosmological models of burst origin. I show that the observed trends can easily be produced by a burst luminosity function and thus may not result from cosmological effects. A cosmological signature may be present, but the tests Norris et al. present are not powerful enough to detect these signatures.
Document ID
19950038187
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Band, David L.
(CASS, California Univ. San Diego, La Jolla, CA, United States)
Date Acquired
August 16, 2013
Publication Date
September 1, 1994
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 432
Issue: 1
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
95A69786
Funding Number(s)
CONTRACT_GRANT: NAS8-36081
Distribution Limits
Public
Copyright
Other

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