H-alpha wide- and narrow-band photometry of R Canis Majoris

Details H-alpha wide- and narrow-band photometry of R Canis Majoris H-alpha wide- and narrow-band photometry of R Canis Majoris

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.151....1e&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 151, no. 1, Jan. 1989, p. 1-28.

Astronomy and Astrophysics

Astrophysics

12

Astronomical Photometry, Eclipsing Binary Stars, H Alpha Line, Light Curve, Spectral Bands, H Beta Line, Narrowband, Orbital Elements, Stellar Spectra, Variable Stars

Scientific paper

H-alpha wide- and narrow-band photoelectric observations of the eclipsing binary R CMa were made at the Biruni Observatory between February 18 and March 2, 1983. The light curves obtained from the observations are analyzed according to Kopal's method for the orbital elements by using frequency-domain techniques. It appears likely that an exchange has taken place on the angle of the first contact and is probably continuing at the present time. New geometric and photometric elements are derived, and a new value for the angle of the first contact is also given.

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