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arXiv · 1807.00011

Remnant baryon mass outside of the black hole after a neutron star-black hole merger

Francois Foucart·Tanja Hinderer·Samaya Nissanke
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Abstract

Gravitational-wave (GW) and electromagnetic (EM) signals from the merger of a Neutron Star (NS) and a Black Hole (BH) are a highly anticipated discovery in extreme gravity, nuclear-, and astrophysics. We develop a simple formula that distinguishes between merger outcomes and predicts the post-merger remnant mass, validated with 75 simulations. Our formula improves on existing results by describing critical unexplored regimes: comparable masses and higher BH spins. These are important to differentiate NSNS from NSBH mergers, and to infer source physics from EM signals.

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Francois Foucart, Tanja Hinderer, Samaya Nissanke. 2018-06-29. Remnant baryon mass outside of the black hole after a neutron star-black hole merger. https://doi.org/10.1103/physrevd.98.081501

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