Rapidly rotating strange stars for a new equation of state of strange quark matter

被引:20
作者
Bombaci, I
Thampan, AV
Datta, B
机构
[1] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy
[2] Ist Nazl Fis Nucl, Sezione Pisa, I-56127 Pisa, Italy
[3] Inter Univ Astron & AStrophys, Pune 411007, Maharashtra, India
[4] Indian Inst Astrophys, Bangalore 560034, Karnataka, India
[5] Raman Res Inst, Bangalore 560080, Karnataka, India
关键词
equation of state; relativity; stars : neutron;
D O I
10.1086/312897
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
For a new equation of state of strange quark matter, we construct equilibrium sequences of rapidly rotating strange stars in general relativity. The sequences are the normal and supramassive evolutionary sequences of constant rest mass. We also calculate equilibrium sequences for a constant value of Omega corresponding to the most rapidly rotating pulsar PSR 1937+21. In addition, we calculate the radius of the marginally stable orbit and its dependence on Omega, relevant for modeling of kilohertz quasi-periodic oscillations in X-ray binaries.
引用
收藏
页码:L71 / L74
页数:4
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