Symbiotic Binary YY Her Eclipses, Flares and Outbursts
Abstract
The long-term CCD and photoelectric observations of YY Her covering the period of its post-outburst activity (JD 2 451 823 -- 2 452 996) are presented. We explain the periodic variations of the brightness of YY Her by the eclipses of the components in the system. The model with a deformed (non-homogeneous) envelope, surrounding the white dwarf is discussed. In addition, we observed a flare in about JD 2 452 440, during the primary minimum, that was later followed by an energetic outburst in JD 2 452 700.
- Publication:
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Astrophysics and Space Science
- Pub Date:
- August 2006
- DOI:
- 10.1007/s10509-006-9138-4
- Bibcode:
- 2006Ap&SS.304..307H
- Keywords:
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- Stars: Binaries: Symbiotic;
- Stars: Individual: YY Her