A spectral investigation of the massive close binary star V 448 CYG

Details A spectral investigation of the massive close binary star V 448 CYG A spectral investigation of the massive close binary star V 448 CYG

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986azh....63..702g&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 63, July-Aug. 1986, p. 702-710. In Russian.

Astronomy and Astrophysics

Astronomy

4

B Stars, Eclipsing Binary Stars, Stellar Spectra, Supermassive Stars, Electron Density (Concentration), H Lines, Spectral Line Width, Stellar Composition, Stellar Envelopes

Scientific paper

From 14 diffraction spectrograms with dispersions 9 and 28 Å/mm obtained during 1981 - 1984 the spectrum of the eclipsing binary V448 Cyg has been studied. Spectral classes of stars were determined as B1,2 Ib+O8,9 V. Contours of hydrogen and helium lines show anomalies, and such characteristics of lines as R0 - central depth, Δλ - half-width and Wλ - equivalent width are varying with the period of revolution. Electron concentrations in the shells of the stars in the system are determined. Particulars of the model of the eclipsing system V448 Cyg are discussed.

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