Low-mass unseen companions to two nearby red dwarfs, CC 1228 and Wolf 922

Details Low-mass unseen companions to two nearby red dwarfs, CC 1228 and Wolf 922 Low-mass unseen companions to two nearby red dwarfs, CC 1228 and Wolf 922

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pasp...91..784l&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 91, Dec. 1979-Jan. 1980, p. 784-788.

Astronomy and Astrophysics

Astronomy

9

Astrometry, Companion Stars, Dwarf Stars, M Stars, Stellar Motions, Parallax, Phase Diagrams, Reference Stars

Scientific paper

Two nearby M dwarfs, CC 1228 and Wolf 922, give indication of duplicity from plates taken with the Sproul 61-cm refractor. The unseen companions cause a perturbation for CC 1228 with P = 6.3y and for Wolf 922 with P = 1.93y. The interpretation leads to a minimum mass of 0.02 solar mass for CC 1228B and a likely range in mass of 0.13-0.20 solar mass for Wolf 922B. Accurate parallaxes yield distances of 12.2 parsecs for CC 1228 and 8.2 parsec for Wolf 922.

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