Self-consistency of relativistic observables with general relativity in the white dwarf-neutron star binary PSR J1141-6545

被引：75

作者：

Bailes, M ^{[1
]}

Ord, SM ^{[1
]}

Knight, HS ^{[1
]}

Hotan, AW ^{[1
]}

机构：

[1] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia

来源：

ASTROPHYSICAL JOURNAL | 2003年 / 595卷 / 01期

关键词：

binaries : close; gravitational waves; pulsars : general; pulsars : individual (PSR J1141-6545); relativity; stars : neutron;

D O I：

10.1086/378939

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Here we report timing measurements of the relativistic binary PSR J1141 - 6545 that constrain the component masses and demonstrate that the orbital period derivative P-b = (-4 +/- 1) x 10(-13) is consistent with gravitational wave emission as described by the general theory of relativity. The mass of the neutron star and its companion are 1.30 +/- 0.02 and 0.986 +/- 0.02 M-., respectively, suggesting a white dwarf companion and extending the range of systems for which general relativity provides a correct description. On evolutionary grounds, the progenitor mass of PSR J1141 - 6545 should be near the minimum for neutron star production. Its mass is 2 standard deviations below the mean of the other neutron stars, suggesting a relationship between progenitor and remnant masses.

引用

页码：L49 / L52

页数：4

共 24 条

[1]

[Anonymous], IAU S

[2]

Arzoumanian Z, 2003, ASTR SOC P, V302, P69

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