Head-on/Near Head-on Collisions of Neutron Stars With a Realistic EOS

Details Head-on/Near Head-on Collisions of Neutron Stars With a Realistic EOS Head-on/Near Head-on Collisions of Neutron Stars With a Realistic EOS

2003-01-05

arxiv.org/abs/gr-qc/0301011v1

Phys.Rev. D67 (2003) 104001

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, 7 figures, submitted to Phy. Rev. D Rapid Comm

Scientific paper

10.1103/PhysRevD.67.104001

It has been conjectured that in head-on collisions of neutron stars (NSs), the merged object would not collapse promptly even if the total mass is higher than the maximum stable mass of a cold NS. In this paper, we show that the reverse is true: even if the total mass is {\it less} than the maximum stable mass, the merged object can collapse promptly. We demonstrate this for the case of NSs with a realistic equation of state (the Lattimer-Swesty EOS) in head-on {\it and} near head-on collisions. We propose a ``Prompt Collapse Conjecture'' for a generic NS EOS for head on and near head-on collisions.

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