Effects of dark matter on the upper bound mass of neutron stars

Title

Effects of dark matter on the upper bound mass of neutron stars

Creator

Kumar S.S.; Kenath A.; Sivaram C.

Description

Observations have indicated that we do not see neutron stars (NS) of mass near the theoretical upper limit as predicted. Here we invoke the role of dark matter (DM) particles in star formation, and their role in lowering the mass of remnants eventually formed from these stars. Massive stars can capture DM particles more effectively than the lower mass stars, thus further softening the equation of state of the remnant neutron stars. We also look at the capture of DM particles by the NS, which could further soften the upper mass limit of NS. The admixture of DM particles would be higher at earlier epochs (high z). 2020 Elsevier B.V.

Source

Physics of the Dark Universe, Vol-28

Date

2020-01-01

Publisher

Elsevier B.V.

Subject

Dark matter; Early epoch; Neutron stars; Star formation

Coverage

Kumar S.S., Dipartimento di Fisica e Astronomia Galileo Galilei, Universitdegli studi di Padova, Via Francesco Marzolo, 8, Padova PD, 35121, Italy; Kenath A., Department of Physics and Electronics, Christ (Deemed to be University), Bengaluru, 560029, Karnataka, India, Department of Physics, Christ Junior College, Bengaluru, 560029, Karnataka, India; Sivaram C., Indian Institute of Astrophysics, Bengaluru, 560034, Karnataka, India

Rights

Restricted Access

Relation

ISSN: 22126864

Format

Online

Language

English

Type

Article

Identifier

https://doi.org/10.1016/j.dark.2020.100507

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85080098130&doi=10.1016%2fj.dark.2020.100507&partnerID=40&md5=23f2691783720596e4fb6b247a62d793