Evidence for Supernova light in all GRB afterglows

Zeh, A. and Kann, D. A. and Klose, S. and Hartmann, D. H. (2005) Evidence for Supernova light in all GRB afterglows. Il nuovo cimento C, 28 (4\5). pp. 617-620. ISSN 1826-9885

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We present an update of our systematic reanalysis of all Gamma-Ray Burst (GRB) afterglow data published through the end of 2003, in an attempt to detect the predicted supernova light component in the optical bands. The total sample of afterglows with established redshifts contains 28 bursts (GRB 970228 to GRB 031203). For 12 of them a weak supernova excess was found (including GRB 030329). Among them are all bursts with redshift less than ∼ 0.7. These results support our earlier finding (ApJ, 609 (2004) 952) that all afterglows of long-duration GRBs contain light from an associated supernova.

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 sources; γ-ray bursts
Subjects: 500 Scienze naturali e Matematica > 520 Astronomia e scienze connesse
Depositing User: Marina Spanti
Date Deposited: 16 Mar 2020 17:40
Last Modified: 16 Mar 2020 17:40
URI: http://eprints.bice.rm.cnr.it/id/eprint/15794

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