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Anisotropic mass ejection from black hole-neutron star binaries: Diversity of electromagnetic counterparts

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arxiv 1305.6309 v2 pith:4U33JPQV submitted 2013-05-27 astro-ph.HE gr-qc

Anisotropic mass ejection from black hole-neutron star binaries: Diversity of electromagnetic counterparts

Koutarou Kyutoku , Kunihito Ioka , Masaru Shibata This is my paper
classification astro-ph.HE gr-qc
keywords starblackbinariesejectahole-neutronmergeranisotropicdiversity
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The merger of black hole-neutron star binaries can eject substantial material with the mass ~0.01-0.1M_sun 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 ~0.2c. 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.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Fast gravitational waveform models for quasi-circular coalescences of neutron star--black hole binaries

    gr-qc 2026-06 unverdicted novelty 7.0

    Presents new NSBH waveform models IMRPhenomXHM_NSBH, SEOBNRv5HM_ROM_NRTidalv3_NSBH, and IMRPhenomXPHM_NSBH incorporating higher modes and tidal effects via NRTidalv3 extensions, validated against NR simulations and ap...

  2. Fast gravitational waveform models for quasi-circular coalescences of neutron star--black hole binaries

    gr-qc 2026-06 conditional novelty 7.0

    New frequency-domain models IMRPhenomXHM_NSBH, SEOBNRv5HM_ROM_NRTidalv3_NSBH, and IMRPhenomXPHM_NSBH bring higher-order modes and tidal effects to fast NSBH waveform templates.