On Isolated Millisecond Pulsars Formed by the Coalescence of Neutron Stars and Massive White Dwarfs

This paper uses population synthesis to investigate the possible origin of isolated millisecond pulsars (IMSPs) as born from the coalescence of a neutron star (NS) and a white dwarf (WD). Results show that the galactic birth - rate of IMSPs is likely to lie between \(5.8\times10^{-5}\) \(\rm yr^{-1}...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2018-12
Main Authors: Sun, Shengnan, Li, Lin, Liu, Helei, Lü, Guoliang, Wang, Zhaojun, Zhu, Chunhua
Format: Article
Language:English
Subjects:
Coalescing
Mass transfer
Millisecond pulsars
Neutron stars
Neutrons
White dwarf stars
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper uses population synthesis to investigate the possible origin of isolated millisecond pulsars (IMSPs) as born from the coalescence of a neutron star (NS) and a white dwarf (WD). Results show that the galactic birth - rate of IMSPs is likely to lie between \(5.8\times10^{-5}\) \(\rm yr^{-1}\) and \(2.0\times10^{-4}\) \(\rm yr^{-1}\), depending on critical variables, such as the stability of mass transfer via the Roche lobe and the value of kick velocity. In addition to this, this paper estimates that the solar mass of IMSPs can range from \(1.5\) and 2.0 \(M_{\odot}\), making them more massive than other 'normal' pulsars. Finally, the majority of IMSPs in our simulations have spin periods ranging from several to 20 milliseconds, which is consistent with previous observations.
ISSN:2331-8422
DOI:10.48550/arxiv.1812.02582