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 1 000 kms−1.
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Gvaramadze, V., Gualandris, A., & Zwart, S. (2007). On the Origin of Hyperfast Neutron Stars. Proceedings of the International Astronomical Union, 3(S246), 365-366. doi:10.1017/S1743921308015962
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This is the pre-print of an article published by the International Astronomical Union. © International Astronomical Union 2008. The final, published version is available here: https://doi.org/10.1017/S1743921308015962
Also archived in: arXiv:0712.4230 v1 Dec 27, 2007
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