Pulsar timing and the special theory of relativity.

Details Pulsar timing and the special theory of relativity. Pulsar timing and the special theory of relativity.

Apr 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996galel...7...30r&link_type=abstract

Galileian Electrodyn., Vol. 7, No. 2, p. 30 - 33

Physics

Millisecond Pulsars: General Relativity

Scientific paper

Millisecond pulsar timing algorithms place all measurements into a solar-centered reference frame, which is assumed to be inertial with respect to the Earth, after correcting the Earth's motion to that of a perfectly circular orbit in a constant gravitational field. However, this analysis is valid only if the pulsar exhibits no proper motion with respect to solar barycenter. Since this is likely never to be the case, a relativistic correction must be made to account for the Earth's constantly changing velocity with respect to the reference frame of the pulsar source. This correction takes the form of a periodic timing residual, on the order of microseconds, which should be detectable through the uses of pulsar timing arrays, low period pulsars or pulsars with large proper motions. The absence of such a residual may constitute a failure of special relativity.

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