http://arxiv.org/abs/1312.5133
We propose a procedure to use gravitational wave signals as a trigger for electromagnetic follow up of black hole-neutron star coalescing binaries, based on two recently proposed semi-analytic fits. The first one, reproduces the mass of the remnant disk surrounding the black hole which forms after the merging, as a function of some key parameters of the binary; the second relates the neutron star compactness, i.e. the ratio of mass and radius, with its tidal deformability. This method allows to assign a probability that the gravitational signal, emitted in a black hole-neutron star coalescence, is associated to the formation of an accreting disk massive enough to supply the energy needed to power a short gamma ray burst.
Thu, 19 Dec 13
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