Spectroscopic searches for low-mass companions of stars

Details Spectroscopic searches for low-mass companions of stars Spectroscopic searches for low-mass companions of stars

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mala.iafcr....l&link_type=abstract

IAF, International Astronautical Congress, 40th, Malaga, Spain, Oct. 7-13, 1989. 6 p. Research supported by the Smithsonian Inst

Astronomy and Astrophysics

Astronomy

Companion Stars, Stellar Mass, Stellar Spectra, Dwarf Stars, M Stars, Open Clusters, Radial Velocity, Stellar Orbits

Scientific paper

The radial velocities of hundreds of late-type stars were monitored for several years. The typical precision for a single measurement can be better that 500 m/s. Five main samples of stars have been observed extensively; two-dozen nearby early M dwarfs together with an equal number of comparison stars, 250 stars in a magnitude-limited sample at the north Galactic pole, a dozen radial-velocity standard stars, 100 stars in the old open cluster M 67, and 1500 dwarfs in a survey of proper-motion stars. In this paper, low-amplitude orbital solutions for some of the stars in these samples are presented.

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