Electromagnetic Signatures from the Tidal Tail of a Black Hole—Neutron Star Merger

  title={Electromagnetic Signatures from the Tidal Tail of a Black Hole—Neutron Star Merger},
  author={Siva Darbha and Daniel N. Kasen and Francois Foucart and Daniel J. Price},
  journal={The Astrophysical Journal},
Black hole—neutron star (BH–NS) mergers are a major target for ground-based gravitational wave observatories. A merger can also produce an electromagnetic counterpart (a kilonova) if it ejects neutron-rich matter that assembles into heavy elements through r-process nucleosynthesis. We study the kilonova signatures of the unbound dynamical ejecta of a BH–NS merger. We take as our initial state the results from a numerical relativity simulation and then use a general relativistic hydrodynamics… Expand
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