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arXiv · 1906.09939

Quark Novae: An Alternative Channel For the Formation of Isolated Millisecond Pulsars

Nurimangul Nurmamat·Chunhua Zhu·Guoliang Lü·Zhaojun Wang·Lin LI·Helei Liu
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Abstract

Isolated millisecond pulsars (IMSPs) are a topic of academic contention. There are various models to explain their formation. We explore the formation of IMSP via quark novae (QN). During this formation process, low-mass X-ray binaries (LMXBs) are disrupted when the mass of the neutron star (NS) reaches 1.8 $\rm M_\odot$. Using population synthesis, this work estimates that the Galactic birthrate of QN-produced IMSPs lies between $\sim 9.5\times10^{-6}$ and $\sim1.7\times10^{-4}$ $\rm yr^{-1}$. The uncertainties shown in our experiment model is due to the QN's kick velocity. Furthermore, our findings not only show that QN-produced IMSPs are statistically more significant than those produced by mergers, but also that millisecond pulsar binaries with a high eccentricity may originate from LMXBs that have been involved in, yet not disrupted by, a QN.

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Nurimangul Nurmamat, Chunhua Zhu, Guoliang Lü, Zhaojun Wang, Lin LI, Helei Liu. 2019-06-20. Quark Novae: An Alternative Channel For the Formation of Isolated Millisecond Pulsars. https://doi.org/10.1007/s12036-019-9596-z

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