Radio observations of HIPPARCOS stars

Details Radio observations of HIPPARCOS stars Radio observations of HIPPARCOS stars

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985esasp.234..255e&link_type=abstract

In ESA The European Astrometry Satellite HIPPARCOS: Scientific Aspects of the Input Catalog Preparation p 255-257 (SEE N86-1838

Astronomy and Astrophysics

Astronomy

Celestial Reference Systems, Hipparcos Satellite, Radio Astronomy, Radio Stars, Astronomical Coordinates, Circular Polarization, Extragalactic Radio Sources, Radiant Flux Density, Very Long Base Interferometry

Scientific paper

Use of radio stars to link the HIPPARCOS reference frame to extragalactic objects through VLBI observations is discussed. An observational program monitoring flux density of radio stars was carried out. From a preliminary list of radio stars with optical characteristics suitable for HIPPARCOS observation objects with good characteristics for VLBI observation were selected, mainly RSCVn stars. The NASA DSN 64 m antenna in Madrid was used for stimultaneous flux density determination at 13 and 3.6 cm or at 2 circular polarizations at 3.6 cm. A total of 30 radio stars were observed. Radio stars are found to be circular polarized up to 20%.

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