Rapid mass-loss transients in VV Cephei

Details Rapid mass-loss transients in VV Cephei Rapid mass-loss transients in VV Cephei

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasp..105...45s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 105, no. 683, p. 45-50.

Astronomy and Astrophysics

Astronomy

8

Accretion Disks, B Stars, Binary Stars, Dwarf Stars, Stellar Mass Ejection, Supergiant Stars, Emission Spectra, Iue, M Stars, Red Giant Stars, Stellar Spectra, Stellar Winds

Scientific paper

Biweekly ultraviolet observations of the red supergiant-hot dwarf binary VV Cephei during 1991, obtained near third quadrature, have revealed the existence of short-term continuum variations. We infer these are superposed on an underlying emission-line spectrum. The viewing geometry of this long-period system suggests we are seeing a process associated with nonuniform mass transfer to an accretion disk. This rapid variability can be related to global instabilities in the stellar wind and mass loss from the red supergiant.

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