Separating Accretion and Mergers in the Cosmic Growth of Black Holes with X-ray and Gravitational Wave Observations.

@article{Pacucci2020SeparatingAA,
  title={Separating Accretion and Mergers in the Cosmic Growth of Black Holes with X-ray and Gravitational Wave Observations.},
  author={F. Pacucci and A. Loeb},
  journal={arXiv: Astrophysics of Galaxies},
  year={2020}
}
  • F. Pacucci, A. Loeb
  • Published 2020
  • Physics
  • arXiv: Astrophysics of Galaxies
  • Black holes across a broad range of masses play a key role in the evolution of galaxies. The initial seeds of black holes formed at $z \sim 30$ and grew over cosmic time by gas accretion and mergers. Using observational data for quasars and theoretical models for the hierarchical assembly of dark matter halos, we study the relative importance of gas accretion and mergers for black hole growth, as a function of redshift ($0 10^8 \, \mathrm{M_{\odot}}$ and $z>6$; and (ii) growth by mergers is… CONTINUE READING

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