Physical Conditions and Velocity Structures in the Red Giant Winds in the Binaries CI CYG and EG and -- Repeat for HOPR#67
Abstract
This proposal represents a two pronged attack aimed at understanding the detailed chracteristics of red giant winds in binary star systems. Red giant winds can provide the most massive, sustained form of mass transfer in binaries. The symbiotic and related stars, which contain red giant and hot companion stars, permit line of sight studies through a range of red giant atmospheric heights. The goal of this work is to attempt to define both the mechanism of rapid mass loss in red giant stars and the details of mass transfer to the companion stars. Such results can provide important constraints for both stellar and binary evolution theories. In each case we expect to derive density and temperature values for the red giant wind region and compare this to the present understanding of single star conditions where low temperature, dust and molecule forming, circumstellar envelopes prevail. (Only EG And observations are included in this file)
- Publication:
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HST Proposal
- Pub Date:
- December 1990
- Bibcode:
- 1990hst..prop.4251C