A Spectrographic Study of R Canis Majoris

Details A Spectrographic Study of R Canis Majoris A Spectrographic Study of R Canis Majoris

Apr 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970ap%26ss...7...87g&link_type=abstract

Astrophysics and Space Science, Volume 7, Issue 1, pp.87-92

Astronomy and Astrophysics

Astrophysics

11

Scientific paper

New spectroscopic elements of R Canis Majoris are given in this paper, computed from 17 plates secured at the Astronomical Observatory of Merate. A new orbit has also been computed with the program by Bertiau, from 81 observations covering a period of about 40 years. Two models of this binary system are proposed, based on two different assumptions and on a newly determined mass function. It is confirmed that the main peculiarity of this binary with regard to the mass-luminosity relation is real; there is also an evidence of mass loss from the Lagrangian pointL 2 as suggested by Kitamura. A suspected variation of the velocityV 0 of the center of mass seems to indicate the presence of a third body. The evidnece is, however, not yet conclusive.

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