Timing measurements and proper motions of 74 pulsars using the Nanshan radio telescope

Details Timing measurements and proper motions of 74 pulsars using the Nanshan radio telescope Timing measurements and proper motions of 74 pulsars using the Nanshan radio telescope

2005-06-30

arxiv.org/abs/astro-ph/0506754v2

Mon.Not.Roy.Astron.Soc.362:1189-1198,2005

Astronomy and Astrophysics

Astrophysics

9 pages, 7 figures and 3 tables. Accepted by MNRAS

Scientific paper

10.1111/j.1365-2966.2005.09346.x

We have measured the positions of 74 pulsars from regular timing observations using the Nanshan radio telescope at Urumqi Observatory between 2000 January and 2004 August (MJD 51500 -- 53240). Proper motions were determined for these pulsars by comparing their current positions with positions given in pulsar catalogues. We compare our results to earlier measurements in the literature and show that, in general, the values agree. New or improved proper motions are obtained for 16 pulsars. The effect of period fluctuations and other timing noise on the determination of pulsar positions is investigated. For our sample, the mean and rms transverse velocities are 443 and 224 km/s respectively, agreeing with previous work even though we determine distances using the new NE2001 electron density model.

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