Radial-velocity measures and the existence of astrophysical binaries in late-type dwarf stars

Details Radial-velocity measures and the existence of astrophysical binaries in late-type dwarf stars Radial-velocity measures and the existence of astrophysical binaries in late-type dwarf stars

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pasp...98..772b&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 98, Aug. 1986, p. 772-776.

Astronomy and Astrophysics

Astrophysics

17

Binary Stars, Dwarf Stars, Late Stars, M Stars, Radial Velocity, Velocity Measurement, Stellar Spectrophotometry

Scientific paper

Radial velocities with errors of 1-2 km/s are presented based on CCD scans obtained with the Kitt Peak National Observatory coude feed telescope between 1982 and 1985 of 48 dK-M stars that lack Balmer emission. Comparison with Gliese's (1969) values shows only two stars to be spectroscopic binary candidates with small velocity amplitudes. No evidence for any short period (less than 10 days) binaries is found, supporting the conclusions of Young et al. (1986) that there are no astrophysical binaries among these chromosherically inactive dM stars.

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