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
收藏
页码：L49 / L52
页数：4
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