Maximum mass and radius of strange stars in the linear approximation of the EOS

被引:34
作者
Harko, T [1 ]
Cheng, KS [1 ]
机构
[1] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
关键词
dense matter; equation of state; stars : fundamental parameters;
D O I
10.1051/0004-6361:20020260
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The Chandrasekhar limit for strange stars described by a linear equation of state (describing quark matter with density-dependent quark masses) is evaluated. The maximum mass and radius of the star depend on the fundamental constants and on the energy density of the quark matter at zero pressure. By comparing the expression for the mass of the star with the limiting mass formula for a relativistic degenerate stellar configuration one can obtain an estimate of the mass of the strange quark.
引用
收藏
页码:947 / 950
页数:4
相关论文
共 17 条
[1]   STRANGE STARS [J].
ALCOCK, C ;
FARHI, E ;
OLINTO, A .
ASTROPHYSICAL JOURNAL, 1986, 310 (01) :261-272
[2]   The Chandrasekhar limit for quark stars [J].
Banerjee, S ;
Ghosh, SK ;
Raha, S .
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2000, 26 (01) :L1-L4
[3]   Strange stars and related astrophysical phenomena [J].
Cheng, KS ;
Dai, ZG ;
Lu, T .
INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 1998, 7 (02) :139-176
[4]   Approximate mass and radius formulas for static and rotating strange stars [J].
Cheng, KS ;
Harko, T .
PHYSICAL REVIEW D, 2000, 62 (08) :1-8
[5]   Strange stars with realistic quark vector interaction and phenomenological density-dependent scalar potential [J].
Dey, M ;
Bombaci, I ;
Dey, J ;
Ray, S ;
Samanta, BC .
PHYSICS LETTERS B, 1998, 438 (1-2) :123-128
[6]   STRANGE MATTER [J].
FARHI, E ;
JAFFE, RL .
PHYSICAL REVIEW D, 1984, 30 (11) :2379-2390
[7]   IS THE SUB-MILLISECOND PULSAR STRANGE [J].
FRIEMAN, JA ;
OLINTO, AV .
NATURE, 1989, 341 (6243) :633-635
[8]  
GLENDENNING NK, 1996, COMPACT STARS NUCL P
[9]  
Gondek-Rosinska D, 2000, ASTRON ASTROPHYS, V363, P1005
[10]   A SUBMILLISECOND PULSAR AND THE EQUATION OF STATE OF DENSE MATTER [J].
HAENSEL, P ;
ZDUNIK, JL .
NATURE, 1989, 340 (6235) :617-619