Effects of differential rotation on the maximum mass of neutron stars

被引：55

作者：

Lyford, ND

Baumgarte, TW

Shapiro, SL

机构：

[1] Bowdoin Coll, Dept Phys & Astron, Brunswick, ME 04011 USA

[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[3] Univ Illinois, Dept Astron, Urbana, IL 61801 USA

[4] Univ Illinois, Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA

来源：

ASTROPHYSICAL JOURNAL | 2003年 / 583卷 / 01期

关键词：

gravitation; relativity; stars : rotation;

D O I：

10.1086/345350

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The merger of binary neutron stars is likely to lead to differentially rotating remnants. In this paper, we numerically construct models of differentially rotating neutron stars in general relativity and determine their maximum allowed mass. We model the stars by adopting a polytropic equation of state and tabulate maximum allowed masses as a function of differential rotation and stiffness of the equation of state. We also provide a crude argument that yields a qualitative estimate of the effect of stiffness and differential rotation on the maximum allowed mass.

引用

收藏

页码：410 / 415

页数：6

相关论文

共 20 条

[1] Equation of state of nucleon matter and neutron star structure [J].

Akmal, A ;

Pandharipande, VR ;

Ravenhall, DG .

PHYSICAL REVIEW C, 1998, 58 (03) :1804-1828

[2] On the maximum mass of differentially rotating neutron stars [J].

Baumgarte, TW ;

Shapiro, SL ;

Shibata, M .

ASTROPHYSICAL JOURNAL, 2000, 528 (01) :L29-L32

[3] Dynamical rotational instability at low T/W [J].

Centrella, JM ;

New, KCB ;

Lowe, LL ;

Brown, JD .

ASTROPHYSICAL JOURNAL, 2001, 550 (02) :L193-L196

[4] Testing a simplified version of Einstein's equations for numerical relativity [J].

Cook, GB ;

Shapiro, SL ;

Teukolsky, SA .

PHYSICAL REVIEW D, 1996, 53 (10) :5533-5540

[5] RAPIDLY ROTATING POLYTROPES IN GENERAL-RELATIVITY [J].

COOK, GB ;

SHAPIRO, SL ;

TEUKOLSKY, SA .

ASTROPHYSICAL JOURNAL, 1994, 422 (01) :227-242

[6] SPIN-UP OF A RAPIDLY ROTATING STAR BY ANGULAR-MOMENTUM LOSS - EFFECTS OF GENERAL-RELATIVITY [J].

COOK, GB ;

SHAPIRO, SL ;

TEUKOLSKY, SA .

ASTROPHYSICAL JOURNAL, 1992, 398 (01) :203-223

[7] Post-Newtonian smoothed particle hydrodynamics calculations of binary neutron star coalescence. II. Binary mass ratio, equation of state, and spin dependence [J].

Faber, JA ;

Rasio, FA ;

Manor, JB .

PHYSICAL REVIEW D, 2001, 63 (04)

[8] A FORMULATION OF THE VIRAL THEOREM IN GENERAL-RELATIVITY [J].

GOURGOULHON, E ;

BONAZZOLA, S .

CLASSICAL AND QUANTUM GRAVITY, 1994, 11 (02) :443-452

[9] A VERSATILE METHOD FOR OBTAINING STRUCTURES OF RAPIDLY ROTATING STARS [J].

HACHISU, I .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1986, 61 (03) :479-507

[10] RAPIDLY ROTATING GENERAL RELATIVISTIC STARS .1. NUMERICAL-METHOD AND ITS APPLICATION TO UNIFORMLY ROTATING POLYTROPES [J].

KOMATSU, H ;

ERIGUCHI, Y ;

HACHISU, I .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1989, 237 (02) :355-379