Study of rotational quark stars and hybrid stars based on the latest equation of state and observation data

In this paper we utilize our improved quasiparticle model to obtain the equation of state (EOS) and use it as an input to the Tolman-Oppenheimer-Volkoff (TOV) equation to get the mass-radii relation of a pure quark star. We discuss the relation between structures of quark stars and the parameters in...

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Bibliographic Details
Published in:Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2015-02, Vol.91 (3), Article 034018
Main Authors: Zhao, Tong, Yan, Yan, Luo, Xin-Lian, Zong, Hong-Shi
Format: Article
Language:English
Subjects:
Cosmology
Equations of state
Gravitation
Mathematical analysis
Mathematical models
Neutron stars
Quark stars
Stars
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Summary:In this paper we utilize our improved quasiparticle model to obtain the equation of state (EOS) and use it as an input to the Tolman-Oppenheimer-Volkoff (TOV) equation to get the mass-radii relation of a pure quark star. We discuss the relation between structures of quark stars and the parameters in the EOS and get a maximum mass of quark star over two solar mass. To compare the result with recent observation, we also calculate the structure of a hybrid star and consider the influence of rotation. Finally, the hadron-quark phase transition in the interior of neutron stars and how much energy will be released when a neutron star bursts into a quark star are discussed.
ISSN:1550-7998
1550-2368
DOI:10.1103/PhysRevD.91.034018