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

Supernova explosions in interacting binaries

10 Aug 2011, 18:05
5m
Oskar Klein (AlbaNova University Center)

Oskar Klein

AlbaNova University Center

Speaker

Dr Ross Church (Lund University)

Description

The presence of a binary companion can have a significant effect on a supernova explosion. Mass transfer affects the evolution of the stars; a massive star may transfer so much mass that it fails to explode as a supernova, whilst conversely an accreting lower-mass star may gain enough material to cause it to explode. Massive stellar cores in close binaries can be spun up by their companions and this may be a source of the rapidly-rotating hypernova explosions that power gamma-ray bursts. Another possible source of gamma-ray bursts in binaries is the deflection of supernova ejecta that are falling back on to a newly-formed black hole. We present some of our recent work on modelling these processes, in order to understand supernovae in interacting binaries and their relation to gamma-ray bursts.

Primary author

Dr Ross Church (Lund University)

Co-authors

Dr Andrew Levan (The University of Warwick) Prof. Melvyn Davies (Lund University)

Presentation materials

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