Are durations of weak gamma-ray bursts reliable?

Schmidt, Maarten (2005) Are durations of weak gamma-ray bursts reliable? Il nuovo cimento C, 28 (3). pp. 347-350. ISSN 1826-9885

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Abstract

Simulations in theGUSBAD Catalog of gamma-ray bursts suggest that the apparent duration of a burst decreases as its amplitude is decreased. We see no evidence for this effect in the BATSE catalog. We show that for a burst at the detection limit, the typical signal-to-noise ratio at the edges of the T90 duration is around 1.5, suggesting that T90 must bequiteunce rtain. Thesituation for T50 is less unfavorable. Simulations using the exact procedure to derive the durations listed in the BATSE catalog would be useful in quantifying the effect.

Item Type: Article
Additional Information: Paper presented at the “4th Workshop on Gamma-Ray Burst in the Afterglow Era”, Rome, October 18-22, 2004.
Uncontrolled Keywords: γ-ray ; γ-ray sources; γ-ray bursts
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 16 Mar 2020 10:12
Last Modified: 16 Mar 2020 10:12
URI: http://eprints.bice.rm.cnr.it/id/eprint/15641

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