Timing the Relativistic Binary Pulsar PSR J1141-6545

Details Timing the Relativistic Binary Pulsar PSR J1141-6545 Timing the Relativistic Binary Pulsar PSR J1141-6545

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..328...33b&link_type=abstract

Binary Radio Pulsars, ASP Conference Series, Vol. 328, Proceedings of the conference held 11-17 January, 2004, Aspen, Colorado,

Astronomy and Astrophysics

Astronomy

2

Scientific paper

New timing is presented for the binary pulsar PSR J1141-6545. This binary pulsar is unusual because, although the orbit is eccentric, the pulsar appears to have a white-dwarf companion. The dissymmetric nature of this system makes it of special relevance to relativists as only one of the components is strongly self-gravitating. Our observations show that the young pulsar's spin down behaviour is not well described by a period and period derivative, but rather exhibits significant ``timing noise.'' Despite this limitation, the system's orbit appears to be decaying at the rate predicted by general relativity. The inclination angle of the orbit as derived from relativistic observables is consistent with that derived from scintillation parameters.

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