Astron. Astrophys. Suppl. Ser.
Volume 135, Number 2, March I 1999
|Page(s)||231 - 241|
|Published online||15 March 1999|
Mining in the Hipparcos raw data*
Observatoire de la Côte d'Azur, CERGA, UMR CNRS 6527, Av. N. Copernic, F-06130 Grasse, France
Send offprint request to: F. Mignard
Accepted: 21 October 1998
The Hipparcos solutions flagged as unreliable after the completion of the standard data processing have been systematically revisited in the light of additional information, primarily related to their multiplicity. In many cases improved solutions have been obtained, yielding at the same time an Hipparcos based separation and position angle and a better astrometric solution for the system. The principles applied in this reprocessing are explained and more than a hundred new solutions with absolute and relative astrometry are presented and discussed.
Key words: stars: fundamental parameters / binaries: general / astrometry / stars: distances
Tables 1 to 7 are also available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (220.127.116.11) or via http://cdsweb.u-strasbg.fr/Abstract.html
© European Southern Observatory (ESO), 1999