VLBI Astrometry
天体物理学
2007-05-23 v1
摘要
VLBI astrometry allows coordinates of celestial radio sources to be determined with submilliarcsecond accuracy. In particular, with differential VLBI astrometry, the standard errors of relative positions and proper motions can be as small as 10 microarcseconds and 10 microarcseconds per year, respectively. I will review astrometric observations of AGN, M81*, a supernova, pulsars, and radio stars, including the guide star, HR 8703, for the NASA/Stanford gyroscope relativity mission, Gravity Probe B.
引用
@article{arxiv.astro-ph/0303342,
title = {VLBI Astrometry},
author = {Norbert Bartel},
journal= {arXiv preprint arXiv:astro-ph/0303342},
year = {2007}
}
备注
Latex, 6 pages, 8 figures; Invited Review Talk at the ``ADeLA2002 - Astrometry in Latin America'' Conference, Araraquara - Sao Paulo, 2 - 5 September 2002, to be published in ADeLA Publications Series, Vol. 1, 2003