Rotating Quark Stars in General Relativity

Universe

Kōji Uryū¹  Luciano Rezzolla²  Antonios Tsokaros²  Enping Zhou³  Renxin Xu³ 

[1] Department of Physics, University of the Ryukyus, Senbaru, Nishihara, Okinawa 903-0213, Japan;Institute for Theoretical Physics, Frankfurt am Main 60438, Germany;State Key Laboratory of Nuclear Science and Technology and School of Physics, Peking University, Beijing 100871, China;

关键词: pulsars;    quark stars;    general relativity;   

DOI  :  10.3390/universe4030048

来源: DOAJ

【 摘 要 】

We have built quasi-equilibrium models for uniformly rotating quark stars in general relativity. The conformal flatness approximation is employed and the Compact Object CALculator (cocal) code is extended to treat rotating stars with surface density discontinuity. In addition to the widely used MIT bag model, we have considered a strangeon star equation of state (EoS), suggested by Lai and Xu, that is based on quark clustering and results in a stiff EoS. We have investigated the maximum mass of uniformly rotating axisymmetric quark stars. We have also built triaxially deformed solutions for extremely fast rotating quark stars and studied the possible gravitational wave emission from such configurations.

【 授权许可】

Unknown