Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985esasp.234..241w&link_type=abstract
In ESA The European Astrometry Satellite HIPPARCOS: Scientific Aspects of the Input Catalog Preparation p 241-245 (SEE N86-1838
Astronomy and Astrophysics
Astronomy
5
Astronomical Catalogs, Hipparcos Satellite, Radio Stars, Extragalactic Radio Sources, Position (Location), Stellar Magnitude, Stellar Motions
Scientific paper
Data on 275 objects subdivided into confirmed, suspected, and potential radio stars was examined for selection of stars which under HIPPARCOS observing conditions promise results accurate enough to compete with positions and proper motins expected from radio interferometric techniques. Optical suitability is assessed by apparent magnitude and by taking into account the effects of very narrow binary components, but also of those several seconds of arc apart. Stars showing strong magnitude variations combined with long periods of the light curve are considered objects deserving special caution, as are masers due to possible noncoincidence of radio spots and optical emission centers. Radio suitability is inferred from the estimated total fluxes unless details on the radio structure are known. The consequences of the step by step application of the criteria on number and distribution of the radio star in the current list established for HIPPARCOS observations are illustrated.
Devegt C.
Kleine Thorsten
Walter Hans G.
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