CORAVEL Radial Velocity Surveys of Late-Type Stars of the HIPPARCOS Mission

Details CORAVEL Radial Velocity Surveys of Late-Type Stars of the HIPPARCOS Mission CORAVEL Radial Velocity Surveys of Late-Type Stars of the HIPPARCOS Mission

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997esasp.402..693u&link_type=abstract

Proceedings of the ESA Symposium `Hipparcos - Venice '97', 13-16 May, Venice, Italy, ESA SP-402 (July 1997), p. 693-698

Computer Science

17

Scientific paper

Two large radial velocity surveys have been conducted during the last years with the two CORAVEL spectrometers. Up to now, more than 140000 radial velocity measurements were obtained for some 40000 late-type stars of the Hipparcos mission (Sp >= F5). These surveys have been conducted at La Silla (ESO, Chile) on the 1.54-m Danish telescope and at the Haute-Provence Observatory (France) on the 1-m Swiss telescope. These ground-based complementary observations provide the third component of the space velocity, mandatory to most studies in Galactic dynamics. The cross-correlation functions measured for the stars not only give access to radial velocities but also to rotational velocities and metallicities. Not the least interesting part of these radial velocity surveys is the data obtained for the so-called Hipparcos `survey'.

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