An observational study of the eclipsing binary RZ Ophiuchi

Details An observational study of the eclipsing binary RZ Ophiuchi An observational study of the eclipsing binary RZ Ophiuchi

Dec 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...226..937b&link_type=abstract

Astrophysical Journal, Part 1, vol. 226, Dec. 15, 1978, p. 937-946. Research supported by the National Research Council of Cana

Astronomy and Astrophysics

Astrophysics

16

Balmer Series, Eclipsing Binary Stars, Orbital Elements, Spectrum Analysis, Stellar Motions, Stellar Spectrophotometry, Kepler Laws, Radial Velocity, Roche Limit, Stellar Evolution, Stellar Mass

Scientific paper

Orbital elements are derived from new spectroscopic and photometric observations. The masses and radii are inconsistent with evolutionary tracks for single stars, but neither star fills its Roche lobe. Analysis of the circumstellar Balmer emission lines indicates that the primary is surrounded by an extensive, highly flattened disk of nonuniform density. The velocity gradient in the disk is steeper than that expected from Keplerian motion.

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