CH Cygni Half a Century Ago – Changing Activity of the Cool Component
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چکیده
منابع مشابه
CH Cygni: TiO molecule as a probe of temperature variations in the atmosphere of the cool component
We report our determination of Tvib from band systems of TiO in the visible spectra of the symbiotic star CH Cygni during its 1987-89 quiescent phase as well as β And and 30 Her, which are taken as comparison stars. The problems usually met by attempting to perform quantitative analysis of the atmospheres of late M-type stars have been taken into account and discussed in detail. Assuming the LT...
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We investigate the role of accretion in the production of jets in the symbiotic star CHCygni. Assuming that the rapid stochastic optical variations in CH Cygni come from the accretion disk, as in cataclysmic variables, we use changes in this flickering to diagnose the state of the disk in 1997. At that time, CH Cygni dropped to a very low optical state, and Karovska et al. report that a radio j...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1988
ISSN: 0252-9211
DOI: 10.1017/s0252921100103446