Looking for the parents of LIGO’s black holes

  title={Looking for the parents of LIGO’s black holes},
  author={Vishal Baibhav and Emanuele Berti and Davide Gerosa and Matthew S. Mould and Ka-wah Wong},
  journal={Physical Review D},
Solutions to the two-body problem in general relativity allow us to predict the mass, spin and recoil velocity of a black-hole merger remnant given the masses and spins of its binary progenitors. In this paper we address the inverse problem: given a binary black-hole merger, can we use the parameters measured by gravitational-wave interferometers to tell if the binary components are of hierarchical origin, i.e. if they are themselves remnants of previous mergers? If so, can we determine at… 
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