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arXiv · 1111.0137

Electromagnetic priors for black hole spindown in searches for gravitational-waves from supernovae and long GRBs

Maurice H. P. M. van Putten·Massimo Della Valle·Amir Levinson
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Abstract

Some core-collapse supernovae appear to be hyper-energetic, and a subset of these are aspherical and associated with long GRBs. We use observations of electromagnetic emission from core-collapse supernovae and GRBs to impose constraints on their free energy source as a prior to searches for their gravitational wave emission. We review these events based on a finite efficiency for the conversion of spin energy to magnetic winds powering supernovae. We find that some of the hyper-energetic events cannot be powered by the spindown of rapidly rotating proto-neutron stars by virtue of their limited rotational energy. They can, instead, be produced by the spindown of black holes providing a distinct prospect for gravitational-wave emission of interest to LIGO, Virgo, and the LCGT.

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Maurice H. P. M. van Putten, Massimo Della Valle, Amir Levinson. 2011-11-01. Electromagnetic priors for black hole spindown in searches for gravitational-waves from supernovae and long GRBs. https://doi.org/10.1051/0004-6361%2F201118080

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