Milliarcsecond structures, VLBI and optical positions of 8 HIPPARCOS radio stars

Details Milliarcsecond structures, VLBI and optical positions of 8 HIPPARCOS radio stars Milliarcsecond structures, VLBI and optical positions of 8 HIPPARCOS radio stars

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985esasp.234..251l&link_type=abstract

In ESA The European Astrometry Satellite HIPPARCOS: Scientific Aspects of the Input Catalog Preparation p 251-253 (SEE N86-1838

Astronomy and Astrophysics

Astronomy

4

Astronomical Coordinates, Hipparcos Satellite, Position (Location), Radio Stars, Stellar Structure, Very Long Base Interferometry, Astronomical Catalogs, Celestial Reference Systems, Radio Emission

Scientific paper

Mark 3 VLBI observations show evidence for complex radio structures on the milliarcsecond angular scale of 8 HIPPARCOS radio stars. Their VLBI positions and optical positions measured with the automatic meridian circle in Bordeaux are presented. Comparison between the optical and VLBI positions of these stars shows that the JPL VLBI reference frame and the FK4 fundamental catalog are aligned at the level of precision of the optical measurements (O".05).

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