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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 |
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Research Division: | Physical Sciences |
Research Group: | Astronomical sciences |
Research Field: | Galactic astronomy |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the physical sciences |
UTAS Author: | Hotan, AW (Dr Aidan Hotan) |
ID Code: | 45119 |
Year Published: | 2003 |
Web of Science® Times Cited: | 76 |
Deposited By: | Physics |
Deposited On: | 2007-07-03 |
Last Modified: | 2007-07-03 |
Downloads: | 0 |
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