Using the black hole merger rate inferred from LIGO, we calculate the abundance of tightly bound binary black holes in the Milky Way galaxy. Binaries with a small semimajor axis (≲10R⊙) originate at larger separations through conventional formation mechanisms and evolve as a result of gravitational wave emission. We find that LISA could detect them in the Milky Way. We also identify possible X-ray signatures of such binaries.
@article{arxiv.1701.01736,
title = {LISA Detection of Binary Black Holes in the Milky Way Galaxy},
author = {Pierre Christian and Abraham Loeb},
journal= {arXiv preprint arXiv:1701.01736},
year = {2017}
}
Comments
8 pages, 2 figures, accepted for publication in MNRAS