# Detecting Black Hole Binaries by Gaia

@article{Yamaguchi2018DetectingBH,
title={Detecting Black Hole Binaries by Gaia},
author={Masaki S. Yamaguchi and Norita Kawanaka and Tomasz Bulik and Tsvi Piran},
journal={The Astrophysical Journal},
year={2018},
volume={861}
}
• Published 26 October 2017
• Physics
• The Astrophysical Journal
We study the prospects of the Gaia satellite to identify black hole (BH) binary systems by detecting the orbital motion of the companion stars. Taking into account the initial mass function, mass transfer, common envelope phase, interstellar absorption, and identifiability of the systems, we estimate the number of BH binaries that can be detected by Gaia and their distributions with respect to the BH mass. Considering several models with different parameters, we find that ∼200–1000 BH binaries…

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