Merger of a Neutron Star with a Newtonian Black Hole

Details Merger of a Neutron Star with a Newtonian Black Hole Merger of a Neutron Star with a Newtonian Black Hole

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aca....45..705l&link_type=abstract

ACTA Astronomica, vol. 45, p. 705

Astronomy and Astrophysics

Astronomy

30

Neutron Stars, Black Holes (Astronomy), Mass Transfer, Coronas, Hydrodynamics, Stellar Mass, Polytropic Processes, Simulation, Stability, Toruses

Scientific paper

Newtonian smooth particle hydro simulations are presented of the merger of a 1.4 solar mass neutron star with a black hole of equal mass. The initial state of the system is modeled with a stiff polytrope orbiting a point mass. Dynamical instability sets in when the orbital separation is equal to about three stellar radii. The ensuing mass transfer occurs on the dynamical timescale. No accretion torus is formed. At the end of the computation a corona of large extent shrouds an apparently stable binary system of a 0.25 solar mass star orbiting a 2.3 solar mass black hole.

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