Pulsar Astrometry at the Microarcsecond Level
Astrophysics
2007-05-23 v1
Abstract
Determination of pulsar parallaxes and proper motions addresses fundamental astrophysical questions. We have recently finished a VLBI astrometry project to determine the proper motions and parallaxes of 27 pulsars, thereby doubling the total number of pulsar parallaxes. Here we summarise our astrometric technique and present the discovery of a pulsar moving in excess of 1000 km/s. As an example of the application of high precision pulsar astrometry we also infer the identification of 2 pulsars originating from a disrupted binary in the Cygnus Superbubble.
Keywords
Cite
@article{arxiv.astro-ph/0509025,
title = {Pulsar Astrometry at the Microarcsecond Level},
author = {W. H. T. Vlemmings and S. Chatterjee and W. F. Brisken and T. J. W. Lazio and J. M. Cordes and S. E. Thorsett and W. M. Goss and E. B. Fomalont and M. Kramer and A. G. Lyne and S. Seagroves and J. M. Benson and M. M. McKinnon and D. C. Backer and R. Dewey},
journal= {arXiv preprint arXiv:astro-ph/0509025},
year = {2007}
}
Comments
3 pages, 2 figures, to appear in the proceedings of the "Stellar End Products" workshop, 13-15 April 2005, Granada, Spain (for publication in MmSAI vol.77)