Period changes of early-type close binaries

Details Period changes of early-type close binaries Period changes of early-type close binaries

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987baicz..38...58m&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 38, Jan. 1987, p. 58-63.

Astronomy and Astrophysics

Astronomy

17

Early Stars, Eclipsing Binary Stars, Mass Transfer, Periodic Variations, Secular Variations, Cycles, Light Curve, Supermassive Stars

Scientific paper

Periods of eclipsing binaries with spectral type B0.5 or earlier are discussed. Attention is paid namely to V337 Aql, IU Aur, SZ Cam (for these stars new times of minima are given), HH Car, CC Cas, AH Cep and V382 Cyg. In all cases the observed period changes can be explained as due to the light-time effect, i.e. in no case the changes may be considered as proof of mass loss or mass transfer. This agrees with the known frequent multiplicity of these objects.

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