The Supernova-GRB Connection

Details The Supernova-GRB Connection The Supernova-GRB Connection

2001-12-07

arxiv.org/abs/astro-ph/0112168v2

Astronomy and Astrophysics

Astrophysics

9 pages + 6 figures (jpeg/separate), Jan van Paradijs Symposium, ed. Ed. van Heuvel et al., Kluver Press, Acknowledment added

Scientific paper

We discuss the possible connection between supernova explosions (SN) and gamma-ray bursters (GRB) from the perspective of our current understanding of SN physics. Recent evidence strongly suggests that the explosion mechanism of core collapse SN is intrinsically aspherical. Typically, a neutron star is formed. However, the observed properties of the expanding SN envelopes remnants make these objects very unlikely candidates for GRBs. Most candidates for a GRB/SN connection seem to require the prompt or delayed formation of a black hole. These include the collapse of very massive stars (e.g. hypernovae) and 'classical' SNe with a significant fallback of material over time scales of hours to days, resulting in the collapse of the neutron star to a black hole. We suggest the merger of a neutron star with a white dwarf as a subclass of thermonuclear SNe and a potential candidate for a SN/GRB connection.

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