Shadows of Colliding Black Holes
General Relativity and Quantum Cosmology
2011-10-20 v2 Cosmology and Nongalactic Astrophysics
High Energy Astrophysical Phenomena
Abstract
We compute the shadows of colliding black holes using the Kastor-Traschen cosmological multiblack hole solution that is an exact solution describing the collision of maximally charged black holes with a positive cosmological constant. We find that in addition to the shadow of each black hole, an eyebrowlike structure appears as the black holes come close to each other. These features can be used as probes to find the multiblack hole system at the final stage of its merger process.
Cite
@article{arxiv.1106.2425,
title = {Shadows of Colliding Black Holes},
author = {Daisuke Nitta and Takeshi Chiba and Naoshi Sugiyama},
journal= {arXiv preprint arXiv:1106.2425},
year = {2011}
}
Comments
5 pages, 1 figure, accepted for publication in PRD