10–13 Aug 2011
AlbaNova University Center
Europe/Stockholm timezone

Supernova signatures in the early X-ray emission from GRBs?

10 Aug 2011, 17:40
5m
Oskar Klein (AlbaNova University Center)

Oskar Klein

AlbaNova University Center

Speaker

Dr Rhaana Starling (University of Leicester)

Description

A growing number of long Gamma-Ray Bursts are indisputably associated with core-collapse supernovae, discovered through optical spectroscopy and/or photometry of the GRB afterglow. Three such bursts show evidence of a thermal component in the early X-ray afterglow emission, claimed by some to be a signature of supernova shock breakout. This component could equally be attributed to central engine activity. We examine the X-ray afterglows of all Swift GRBs with associated optical supernovae in search of a thermal X-ray component, comparing these results to those of non-SN-associated GRBs to add to the debate on the origin of this emission.

Primary author

Dr Rhaana Starling (University of Leicester)

Co-authors

Dr Kim Page (University of Leicester) Mr Martin Sparre (Dark Cosmology Centre)

Presentation materials

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