Schwarzschild black holes can wear scalar wigs
General Relativity and Quantum Cosmology
2012-08-31 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
We study the evolution of a massive scalar field surrounding a Schwarzschild black hole and find configurations that can survive for arbitrarily long times, provided the black hole or the scalar field mass is small enough. In particular, both ultra-light scalar field dark matter around supermassive black holes and axion-like scalar fields around primordial black holes can survive for cosmological times. Moreover, these results are quite generic, in the sense that fairly arbitrary initial data evolves, at late times, as a combination of those long-lived configurations.
Keywords
Cite
@article{arxiv.1207.2153,
title = {Schwarzschild black holes can wear scalar wigs},
author = {Juan Barranco and Argelia Bernal and Juan Carlos Degollado and Alberto Diez-Tejedor and Miguel Megevand and Miguel Alcubierre and Darío Núñez and Olivier Sarbach},
journal= {arXiv preprint arXiv:1207.2153},
year = {2012}
}
Comments
5 pages, 3 figures. Accepted for publication in Physical Review Letters