{ "id": "1305.6309", "version": "v2", "published": "2013-05-27T20:00:00.000Z", "updated": "2013-08-23T18:06:36.000Z", "title": "Anisotropic mass ejection from black hole-neutron star binaries: Diversity of electromagnetic counterparts", "authors": [ "Koutarou Kyutoku", "Kunihito Ioka", "Masaru Shibata" ], "comment": "6 pages, 1 figure, revision according to the published version", "journal": "Phys.Rev.D88:041503(R),2013", "doi": "10.1103/PhysRevD.88.041503", "categories": [ "astro-ph.HE", "gr-qc" ], "abstract": "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.", "revisions": [ { "version": "v2", "updated": "2013-08-23T18:06:36.000Z" } ], "analyses": { "subjects": [ "04.25.D-", "04.30.Tv", "04.40.Dg" ], "keywords": [ "black hole-neutron star binaries", "anisotropic mass ejection", "electromagnetic counterparts", "anisotropic ejecta brings electromagnetic-counterpart diversity" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review D", "year": 2013, "month": "Aug", "volume": 88, "number": 4, "pages": "041503" }, "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1235672, "adsabs": "2013PhRvD..88d1503K" } } }