Measuring the Proper Motion of the Relativistic Binary Pulsar PSR J1141--6545

Details Measuring the Proper Motion of the Relativistic Binary Pulsar PSR J1141--6545 Measuring the Proper Motion of the Relativistic Binary Pulsar PSR J1141--6545

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atnf.prop.1197b&link_type=abstract

ATNF proposal V256, Semester: October, 2007

Physics

Galactic, Lba

Scientific paper

We propose to measure the proper motion (and place a limit on parallax) of the eccentric relativistic binary pulsar J1141-6545, for which regular timing observations are currently underway at Parkes. PSR J1141-6545 is a very significant object for important tests of General Relativity, and our 6-yr long timing data span has enabled a measurement of its orbital period derivative with a precision below 10%. A proper motion measurement is essential to ascertain the level of contamination from kinematic effects and thus to assess the prospects of longer term timing and further GR tests. Furthermore, the resultant estimate of the pulsar's transverse velocity will help shed light on the evolutionary scenarios of such binary systems.

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