The distance, space motions, and revised absolute parameters of R Canis Majoris

Details The distance, space motions, and revised absolute parameters of R Canis Majoris The distance, space motions, and revised absolute parameters of R Canis Majoris

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88..126g&link_type=abstract

Astronomical Journal, vol. 88, Jan. 1983, p. 126-131. Research sponsored by the U.S.-Australia Cooperative Sciences Program

Astronomy and Astrophysics

Astronomy

18

Astrometry, Eclipsing Binary Stars, Stellar Magnitude, Stellar Motions, Stellar Parallax, White Dwarf Stars, Light Curve, Radial Velocity, Radii, Stellar Evolution, Stellar Mass

Scientific paper

A new parallax is reported for the short-period Algol-type eclipsing binary R CMa. The revised absolute parallax places the system at a distance of 42 pc, and yields a distance modulus of m-M = +3m.10. From its U, V, W space motions R CMa appears to be a high-velocity star with a resultant space motion relative to the Local Standard of Rest of Sarcmin ≅ 68 km s-1. The inferred age of the system from its space motion is between 2×109 and 6×109 yr. Absolute magnitudes, radii and masses of the stellar components are calculated. The evolutionary state of the system is discussed.

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