Time dependent black holes and scalar hair

Chadburn, Sarah; Gregory, Ruth

doi:10.1088/0264-9381/31/19/195006

Time dependent black holes and scalar hair

Chadburn, Sarah; Gregory, Ruth

Authors

Sarah Chadburn

Ruth Gregory

Abstract

We show how to correctly account for scalar accretion onto black holes in scalar field models of dark energy by a consistent expansion in terms of a slow roll parameter. At leading order, we find an analytic solution for the scalar field within our Hubble volume, which is regular on both black hole and cosmological event horizons, and compute the back reaction of the scalar on the black hole, calculating the resulting expansion of the black hole. Our results are independent of the relative size of black hole and cosmological event horizons. We comment on the implications for more general black hole accretion, and the no hair theorems.

Citation

Chadburn, S., & Gregory, R. (2014). Time dependent black holes and scalar hair. Classical and Quantum Gravity, 31(19), Article 195006. https://doi.org/10.1088/0264-9381/31/19/195006

Journal Article Type	Article
Acceptance Date	Aug 7, 2014
Publication Date	Oct 7, 2014
Deposit Date	Apr 24, 2013
Publicly Available Date	Sep 23, 2015
Journal	Classical and Quantum Gravity
Print ISSN	0264-9381
Electronic ISSN	1361-6382
Publisher	IOP Publishing
Peer Reviewed	Peer Reviewed
Volume	31
Issue	19
Article Number	195006
DOI	https://doi.org/10.1088/0264-9381/31/19/195006
Related Public URLs	http://arxiv.org/abs/1304.6287

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Copyright Statement
This is an author-created, un-copyedited version of an article published in Classical and Quantum Gravity. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/10.1088/0264-9381/31/19/195006