Photometric elements and evolutionary status of eclipsing binary DI Pegasi

Details Photometric elements and evolutionary status of eclipsing binary DI Pegasi Photometric elements and evolutionary status of eclipsing binary DI Pegasi

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ap%26ss..81..283c&link_type=abstract

Astrophysics and Space Science, vol. 81, no. 1-2, Jan. 1982, p. 283-293.

Astronomy and Astrophysics

Astrophysics

7

Eclipsing Binary Stars, Light Curve, Orbital Elements, Stellar Evolution, Stellar Spectrophotometry, Ubv Spectra, Electrophotometry, Mass Transfer, Spectrum Analysis, Stellar Mass, Stellar Temperature

Scientific paper

UBV photometric observations of the eclipsing binary DI Pegasi obtained in October and December 1979 have been used in an investigation of the photoelectric orbital elements of the system, and of its evolutionary status. Light curves are presented, and, by means of the color indices, absolute dimensions are estimated. It is found that 3.94 x 10 to the -7th solar mass is transferred from the secondary to the primary star in one year. The spectral type of the secondary star is determined to be K3.

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