Coalescence of a strange star with a black hole

Details Coalescence of a strange star with a black hole Coalescence of a strange star with a black hole

2001-03-22

arxiv.org/abs/astro-ph/0103380v1

2001, ESA SP--459, p. 227

Astronomy and Astrophysics

Astrophysics

3 pages, to appear in the proceedings of the 4th INTEGRAL workshop, "Exploring the extreme universe", Alicante, September 2000

Scientific paper

We present the first numerical results on the binary coalescence of a quark star with a black hole, obtained with a 3-D Newtonian smooth particle hydro (SPH) code. The star is initially represented by 17,000 particles modeling a self-gravitating fluid with the equation of state P= (rho - rho0)c**2/3, and the black hole by a point mass with an absorbing boundary at the Schwarzschild radius. As in similar calculations carried out for a stiff polytrope, the stellar core survives the initial episode of mass transfer, but here an accretion disk is clearly formed as well.

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