Formation and merging of mass gap black holes in gravitational-wave merger events from wide hierarchical quadruple systems

@article{Safarzadeh2019FormationAM,
  title={Formation and merging of mass gap black holes in gravitational-wave merger events from wide hierarchical quadruple systems},
  author={M. Safarzadeh and A. Hamers and A. Loeb and E. Berger},
  journal={The Astrophysical Journal},
  year={2019},
  volume={888}
}
  • M. Safarzadeh, A. Hamers, +1 author E. Berger
  • Published 2019
  • Physics
  • The Astrophysical Journal
  • We investigate secular evolution in hierarchical quadruple systems as a formation channel of mass-gap black holes (with masses of about $3-5$ $M_{\odot}$) in systems that will eventually lead to binary black hole mergers detectable by ground-based gravitational wave detectors (LIGO/Virgo). We show that in a 3+1 hierarchical system, two episodes of induced mergers would first cause two neutron stars to merge and form a mass-gap black hole, which will subsequently merge with another (more massive… CONTINUE READING
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