Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001rmxac..10..176l&link_type=abstract
The Seventh Texas-Mexico Conference on Astrophysics: Flows, Blows and Glows (Eds. William H. Lee and Silvia Torres-Peimbert) Rev
Astronomy and Astrophysics
Astrophysics
Binaries: Close, Gamma Rays: Bursts, Hydrodynamics, Stars: Neutron
Scientific paper
We present a numerical study of the hydrodynamics in the final stages of inspiral in a black hole-neutron star binary, when the separation becomes comparable to the stellar radius. We use a Newtonian 3D Smooth Particle Hydrodynamics (SPH) code and model the neutron star with a stiff equation of state. The black hole is modeled as a point mass with an absorbing boundary at the Schwarzschild radius. The initial conditions correspond to irrotational binaries in equilibrium, and we follow the evolution of the system for approximately 23 ms. We find that the result of the initial interaction between the stars is an intense episode of mass transfer, and the details of the subsequent evolution depend greatly on the assumed stiffness of the equation of state. We find that an accretion disk containing a few tenths of a solar mass is formed around the black hole, and that up to 0.1 solar masses of material may be dynamically ejected from the system. Our results show that these systems are promising candidates for the production of short gamma-ray bursts.
No associations
LandOfFree
Black hole-neutron star mergers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Black hole-neutron star mergers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Black hole-neutron star mergers will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1094546