Quark matter and quark stars within the quasiparticle model under magnetic fields

Peng-Cheng Chu, Xiao-Hua Li, He Liu, and Jia-Wei Zhang
Phys. Rev. C 104, 045805 – Published 15 October 2021

Abstract

We investigate the properties of the equation of state (EOS), the quark fraction, and the isospin asymmetry for strange quark matter (SQM) under constant magnetic field within the quasiparticle model. Our results indicate that the effect of the magnetic field is important for the properties of strange quark matter, and the recently discovered heavy compact stars PSR J0348+0432, MSR J0740+6620, PSR J2215+5135, and especially the GW190814s secondary component m2 can be well described as quark stars within the quasiparticle model under magnetic fields by approximately using spherically symmetric Tolman-Oppenheimer-Volkov (TOV) equations.

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  • Received 3 May 2021
  • Accepted 28 September 2021

DOI:https://doi.org/10.1103/PhysRevC.104.045805

©2021 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & AstrophysicsNuclear Physics

Authors & Affiliations

Peng-Cheng Chu1,*, Xiao-Hua Li2,3,†, He Liu1,‡, and Jia-Wei Zhang4,§

  • 1The Research Center for Theoretical Physics, Science School, Qingdao University of Technology, Qingdao 266033, China
  • 2School of Nuclear Science and Technology, University of South China, 421001 Hengyang, China
  • 3Cooperative Innovation Center for Nuclear Fuel Cycle Technology & Equipment, University of South China, 421001 Hengyang, China
  • 4Department of Physics, Chongqing University of Science and Technology, Chongqing 401331, China

  • *kyois@126.com
  • lixiaohuaphysics@126.com
  • liuhe@qut.edu.cn
  • §jwzhang@cqust.edu.cn

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Issue

Vol. 104, Iss. 4 — October 2021

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