The maximum mass of a neutron star

被引:277
作者
Kalogera, V [1 ]
Baym, G [1 ]
机构
[1] UNIV ILLINOIS, DEPT PHYS, URBANA, IL 61801 USA
基金
美国国家科学基金会;
关键词
dense matter; stars; neutron;
D O I
10.1086/310296
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Observational identification of black holes as members of binary systems requires the knowledge of the upper limit on the gravitational mass of a neutron star. We use modern equations of state for neutron star matter, fitted to experimental nucleon-nucleon scattering data and the properties of light nuclei, to calculate, within the framework of Rhoades & Ruffini (1974), the minimum upper limit on a neutron star mass. Regarding the equation of state as valid up to twice nuclear matter saturation density, rho(nm) we obtain a secure upper bound on the neutron star mass equal to 2.9 M.. We also find that in order to reach the lowest possible upper bound of 2.2 M., we need to understand the physical properties of neutron matter up to a density of similar to 4 rho(nm).
引用
收藏
页码:L61 / L64
页数:4
相关论文
共 10 条
  • [1] BAYM G, 1995, NUCL PHYS A, V590, pC233, DOI 10.1016/0375-9474(95)00238-V
  • [2] BAYM G, 1971, APJ, V170, P2299
  • [3] COWLEY AP, 1994, AIP CONF PROC, P45
  • [4] ON THE MAXIMUM MASS OF A UNIFORMLY ROTATING NEUTRON-STAR
    FRIEDMAN, JL
    IPSER, JR
    [J]. ASTROPHYSICAL JOURNAL, 1987, 314 (02) : 594 - 597
  • [5] BOUNDS ON MASS AND MOMENT OF INERTIA OF NON-ROTATING NEUTRON STARS
    HARTLE, JB
    [J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1978, 46 (06): : 201 - 247
  • [6] UPPER MASS LIMIT FOR NEUTRON STARS INCLUDING DIFFERENTIAL ROTATION
    HEGYI, DJ
    [J]. ASTROPHYSICAL JOURNAL, 1977, 217 (01) : 244 - 247
  • [7] On massive neutron cores
    Oppenheimer, JR
    Volkoff, GM
    [J]. PHYSICAL REVIEW, 1939, 55 (04): : 0374 - 0381
  • [8] MAXIMUM MASS OF A NEUTRON STAR
    RHOADES, CE
    RUFFINI, R
    [J]. PHYSICAL REVIEW LETTERS, 1974, 32 (06) : 324 - 327
  • [9] Tanaka Y., 1995, X-Ray Binaries, P126
  • [10] EQUATION OF STATE FOR DENSE NUCLEON MATTER
    WIRINGA, RB
    FIKS, V
    FABROCINI, A
    [J]. PHYSICAL REVIEW C, 1988, 38 (02): : 1010 - 1037