Relating the HIPPARCOS Reference Frame to the Radio Reference Frame
Abstract
Precise radio positions for a large number of stars can be made using the Very Large Array (VLA). From the emission of approximately 100 stars relative to background extragalactic radio sources, the HIPPARCOS reference frame can be related in a statistical sense to the radio reference frame at the fraction of a mass level. Using radio stars, the two principal problems of the linking process, i.e. determining residual rotation and position zero point can be solved fully satisfactorily. Techniques and results from recent measurements are discussed.
- Publication:
-
Hipparcos. Scientific Aspects of the Input Catalogue Preparation
- Pub Date:
- August 1985
- Bibcode:
- 1985ESASP.234..247D
- Keywords:
-
- Celestial Reference Systems;
- Extragalactic Radio Sources;
- Hipparcos Satellite;
- Radio Emission;
- Radio Stars;
- Stellar Radiation;
- Very Large Array (Vla);
- Position (Location);
- Radio Astronomy;
- Stellar Rotation;
- Very Long Base Interferometry;
- Astronomy