Radial Velocities of K-Dwarfs and M-Dwarfs

Details Radial Velocities of K-Dwarfs and M-Dwarfs Radial Velocities of K-Dwarfs and M-Dwarfs

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988afz....28..297t&link_type=abstract

Astrofizika, Vol.28:2, P. 297, 1988

Astronomy and Astrophysics

Astronomy

5

Scientific paper

The 931 measurements of radial velocities of 206 nearby stars were made in 1985 - 87 with the correlation radial-velocity-meter. The typical accuracy is 0.5 km/s. The homogeneous sample of 162 K, M-dwarfs located in a zone (δ > -10°, 14h < α < 3h) contains 41 stars with variable or probably variable velocity. For 10 stars the spectral duplicity is noted for the first time. 27% are spectroscopic binaries. No low mass (M2sin i < 0.1 M_sun;) companions have been found among the short period (P < 1 year) systems, all of them having the velocity range in excess of 7 km/s. In the systems with the largest mass function GL 58.2 and 793.1 lines of secondary components have been detected.

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