Astrometry of Southern Radio Sources
Preston, Robert A.; White, Graeme L.; Gulkis, Samuel; Jauncey, David L.; Harvey, Bruce R.; Savage, Ann; Peterson, Bruce A.; Reynolds, John E.; Nicolson, George D.; Malin, D. F.
Australia, United States
Abstract
An overview is presented of a number of astrometry and astrophysics programs based on radio sources from the Parkes 2.7 GHz catalogues. The programs cover the optical identification and spectroscopy of flat-spectrum Parkes sources and the determination of their milliarc-second radio structures and positions. Work is also in progress to tie together the radio and Hipparcos positional reference frames. A parallel program of radio and optical astrometry of southern radio stars is also under way.