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Self-consistency of Relativistic Observables with General Relativity in the White Dwarf-Neutron Star Binary PSR J1141-6545

Citation

Bailes, M and Ord, SM and Knight, HS and Hotan, AW, Self-consistency of Relativistic Observables with General Relativity in the White Dwarf-Neutron Star Binary PSR J1141-6545, The Astrophysical Journal, 595, (1 II) pp. L49-L52. ISSN 0004-637X (2003) [Refereed Article]

DOI: doi:10.1086/378939

Abstract

Here we report timing measurements of the relativistic binary PSR J1141-6545 that constrain the component masses and demonstrate that the orbital period derivative Pb = (-4 ± 1) × 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.

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Astronomical and Space Sciences
Research Field:Galactic Astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
Author:Hotan, AW (Dr Aidan Hotan)
ID Code:45119
Year Published:2003
Web of Science® Times Cited:64
Deposited By:Physics
Deposited On:2007-07-03
Last Modified:2007-07-03
Downloads:0

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