Please use this identifier to cite or link to this item:
|Title:||Accretion dynamics in neutron star-black hole binaries|
Wynn, Graham A.
|Publisher:||Oxford University Press (OUP), Royal Astronomical Society|
|Citation:||Monthly Notices of the Royal Astronomical Society, 2004, 351 (4), pp.1121-1133|
|Abstract:||We perform three-dimensional, Newtonian hydrodynamic simulations with a nuclear equation of state to investigate the accretion dynamics in neutron star–black hole systems. We find as a general result that non-spinning donor stars yield larger circularization radii than corotating donors. Therefore, the matter from a neutron star without spin will more likely settle into an accretion disc outside the Schwarzschild radius. With the stiff equation of state used we find it hard to form an accretion disc that is promising to launch a gamma-ray burst. In all relevant cases the core of the neutron star survives and keeps orbiting the black hole as a mini neutron star for the rest of the simulation time (up to several hundred dynamical neutron star time-scales). The existence of this mini neutron star leaves a clear imprint on the gravitational wave signal which thus can be used to probe the physics at supranuclear densities.|
|Rights:||This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society, Copyright 2004 RAS Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.|
|Appears in Collections:||Published Articles, Dept. of Physics and Astronomy|
Files in This Item:
|MNRAS-2004-Rosswog-1121-33.pdf||Published version||6.24 MB||Adobe PDF||View/Open|
Items in LRA are protected by copyright, with all rights reserved, unless otherwise indicated.