Investigation of close binary XZ CEP with components of the early spectral type

Details Investigation of close binary XZ CEP with components of the early spectral type Investigation of close binary XZ CEP with components of the early spectral type

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990baicz..41...51k&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 41, no. 1, Jan. 1990, p. 51-56. Research supported by

Astronomy and Astrophysics

Astronomy

7

Astronomical Photometry, Binary Stars, Mass Transfer, Stellar Spectra, Variable Stars, Electrophotometry, Line Spectra, Roche Limit, Stellar Envelopes

Scientific paper

The published photometric observations together with the photoelectric observations obtained at the observatories of Abastumani and Skalnate Pleso in 1977 - 1981 have been interpreted. The existing opinion of the light variations has been shown to be incorrect, and a secular increase of the orbital period in the observing interval as a whole has been proved. The possible causes of this effect are discussed. The conservative process of mass transfer in the system leads to the value 1.64 x 10 to the -7th solar mass/yr.

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