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RAPID MASS-LOSS TRANSIENTS IN VV CEPHEI

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© 1993. The Astronomical Society of the Pacific. All rights reserved. Printed in U.S.A.
, , Citation Robert E. Stencel et al 1993 PASP 105 45 DOI 10.1086/133125

1538-3873/105/683/45

ABSTRACT

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 non-uniform 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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10.1086/133125