CI CYG - The stage of case C mass transfer

Details CI CYG - The stage of case C mass transfer CI CYG - The stage of case C mass transfer

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...116..210i&link_type=abstract

Astronomy and Astrophysics, vol. 116, no. 2, Dec. 1982, p. 210-216. Research supported by the Consiglio Nazionale delle Ricerch

Astronomy and Astrophysics

Astrophysics

31

Binary Stars, Cygnus Constellation, M Stars, Stellar Mass Accretion, Giant Stars, Main Sequence Stars, Mass Transfer, Stellar Spectrophotometry

Scientific paper

Spectroscopic and spectrophotometric observations of the symbiotic star CI Cyg were carried out during 1979-1981. The following new properties of this object were found out: This object consists of an M type bright giant; MV = -2.0, and a main sequence star. The M type star just fills its Roche critical lobe. A mass transfer with a rate of approximately 0.003 solar masses/yr is anticipated. The transferred mass is accreted by the main sequence star via a disk. The luminosity of the main sequence star is close to its Eddington critical luminosity. A part of the accreted mass may be lost from the main sequence star as a radiatively driven outflowing wind. The matter in the nebular component may be supplied by this wind.

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