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Possible evolutionary transition from rapidly rotating neutron stars to strange stars due to spin-down

Nobutoshi Yasutake·Masa-aki Hashimoto·Yoshiharu Eriguchi
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Abstract

We present a scenario of formation of strange stars due to spin-down of {\it rapidly rotating} neutron stars left after supernova explosions . By assuming a process where the total baryon mass is conserved but the angular momentum is lost due to emission of gravitational waves and/or the magnetic braking, we find that the transition from rapidly rotating neutron stars to slowly rotating strange stars is possible; a large amount of energy $\sim 10^{53} ergs $ could be released. The liberated energy might become a new energy source for a delayed explosion of supernova. Furthermore, our scenario suggests that the supernova associated with gamma-ray bursts could become candidates for targets in the future observation of gravitational waves.

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Nobutoshi Yasutake, Masa-aki Hashimoto, Yoshiharu Eriguchi. 2005-06-10. Possible evolutionary transition from rapidly rotating neutron stars to strange stars due to spin-down. https://doi.org/10.1143/ptp.113.953

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