[1208.5279] Dynamical Capture Binary Neutron Star Mergers

Authors: William E. East, Frans Pretorius

Date: 27 Aug 2012

Abstract: We study dynamical capture, binary neutron star mergers as may arise in dense stellar regions such as globular clusters. Using general-relativistic hydrodynamics we find that these mergers can result in the prompt collapse to a black hole or in the formation of a hypermassive neutron star, depending not only on the neutron star equation of state, but also on impact parameter. We also find that these mergers can produce accretion disks of up to a tenth of a solar mass, and unbound ejected material of up to a few percent of a solar mass. We comment on the gravitational radiation and electromagnetic transients that these sources may produce.

abs pdf

Sep 17, 2012

1208.5279 (/preprints)
2012-09-17, 13:45 [edit]

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