Spectral investigation of the eclipsing binary star RY Per. I

Details Spectral investigation of the eclipsing binary star RY Per. I Spectral investigation of the eclipsing binary star RY Per. I

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979sva....23..570k&link_type=abstract

Astronomicheskii Zhurnal, vol. 56, Sept.-Oct. 1979, p. 1012-1022. In Russian.

Astronomy and Astrophysics

Astronomy

1

Eclipsing Binary Stars, H Lines, Spectrum Analysis, Stellar Spectra, Astronomical Spectroscopy, Emission Spectra, Helium, Metals, Stellar Mass, Stellar Rotation, Stellar Structure

Scientific paper

Thirty dispersion spectrograms with dispersion of 37 A/mm were used to perform a spectral investigation of RY Per. The spectrum of the star is compound, with spectral line characteristics varying in a complex manner. Hydrogen lines show variation of equivalent widths with revolution period, while helium line profiles vary markedly with phase. Metal emission lines were found in the spectrum as well. Electron pressure was calculated from hydrogen lines and a model for RY Per was constructed from the observational data.

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