Secondaries of eclipsing binaries. VI - R Canis Majoris

Details Secondaries of eclipsing binaries. VI - R Canis Majoris Secondaries of eclipsing binaries. VI - R Canis Majoris

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...297..250t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 297, Oct. 1, 1985, p. 250-254.

Astronomy and Astrophysics

Astrophysics

22

Cool Stars, Eclipsing Binary Stars, Line Spectra, Stellar Mass Ejection, Stellar Spectrophotometry, Abundance, Deuterium, Main Sequence Stars, Roche Limit, Sodium, Velocity Distribution

Scientific paper

High S/N Reticon observations of the Algol system R CMa are described, revealing the Na D lines of the secondary for the first time. The observations and accompanying observations of the primary in the blue provide the secondary velocity curve and a redetermination of the primary velocity curve. The very small mass (0.17 plus or minus 0.02 solar mass) determined for the evolved, Roche-lobe-filling secondary is a consequence of severe mass loss, and it is argued that this star has lost at least 80 percent its original mass.

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