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arXiv · 0712.4230

On the origin of hyperfast neutron stars

V. V. Gvaramadze·A. Gualandris·S. Portegies Zwart
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Abstract

We propose an explanation for the origin of hyperfast neutron stars (e.g. PSR B1508+55, PSR B2224+65, RX J0822-4300) based on the hypothesis that they could be the remnants of a symmetric supernova explosion of a high-velocity massive star (or its helium core) which attained its peculiar velocity (similar to that of the neutron star) in the course of a strong three- or four-body dynamical encounter in the core of a young massive star cluster. This hypothesis implies that the dense cores of star clusters (located either in the Galactic disk or near the Galactic centre) could also produce the so-called hypervelocity stars -- the ordinary stars moving with a speed of ~1000 km/s.

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V. V. Gvaramadze, A. Gualandris, S. Portegies Zwart. 2007-12-27. On the origin of hyperfast neutron stars. https://doi.org/10.1017/s1743921308015962

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