Abstract
The merger of black hole-neutron star binaries can eject substantial material with the mass when the neutron star is disrupted prior to the merger. The ejecta shows significant anisotropy, and travels in a particular direction with the bulk velocity . This is drastically different from the binary neutron star merger, for which ejecta is nearly isotropic. Anisotropic ejecta brings electromagnetic-counterpart diversity which is unique to black hole-neutron star binaries, such as viewing-angle dependence, polarization, and proper motion. The kick velocity of the black hole, gravitational-wave memory emission, and cosmic-ray acceleration are also discussed.
- Received 27 May 2013
DOI:https://doi.org/10.1103/PhysRevD.88.041503
© 2013 American Physical Society