The Deceptively Boring PSR J1738+0333

Details The Deceptively Boring PSR J1738+0333 The Deceptively Boring PSR J1738+0333

2010-06-03

arxiv.org/abs/1006.0642v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

3 pages, 1 figure, proceedings of the 12th Marcel Grossmann meeting

Scientific paper

We present preliminary results of 7 years of Arecibo timing of the pulsar-white dwarf binary PSR J1738+0333. We can measure the proper motion, parallax with excellent precision and have detected the orbital decay. Furthermore, the companion has been detected at optical wavelengths and a mass ratio of 8.1 +/- 0.3 has been measured from the orbital variation of its Doppler shift. Once the companion mass is determined from the optical measurements, this system will provide strong limits for the radiation of dipolar gravitational waves. Assuming that general relativity holds, the fast-improving measurement of the orbital decay, combined with the measurement of the mass ratio, will provide an independent and precise measurement of the component masses.

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