On the final spin from the coalescence of two black holes
General Relativity and Quantum Cosmology
2008-11-07 v2 Astrophysics
Abstract
We provide a compact analytic formula to compute the spin of the black hole produced by the coalescence of two black holes. The expression, which uses an analytic fit of numerical-relativity data and relies on four assumptions, aims at modelling generic initial spin configurations and mass ratios. A comparison with numerical-relativity simulations already shows very accurate agreements with all of the numerical data available to date, but we also suggest a number of ways in which our predictions can be further improved.
Keywords
Cite
@article{arxiv.0712.3541,
title = {On the final spin from the coalescence of two black holes},
author = {Luciano Rezzolla and Enrico Barausse and Ernst Nils Dorband and Denis Pollney and Christian Reisswig and Jennifer Seiler and Sascha Husa},
journal= {arXiv preprint arXiv:0712.3541},
year = {2008}
}
Comments
Extended discussion of physical assumptions to make them less cryptic; matches published version