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| Paper: |
Symbiotic Binary YY Her - Looking for Consistent Model of Photometric and Spectroscopic Behaviour |
| Volume: |
330, The Astrophysics of Cataclysmic Variables and Related Objects |
| Page: |
455 |
| Authors: |
Hric, L.; Galis, R.; Dobrotka, A.; Simon, V. |
| Abstract: |
The indetermination of light curves behaviour of the symbiotic system YY Her stimulated us to call an international photometric campaign for a detailed coverage of its light curve. Our attention was oriented to cover the period of the expected secondary minimum that was discovered in 2001 (Hric et al. 2001). The campaign was very successful; it covered the secondary as well as primary minimum affected by a flare in about JD 2 452 440 that was later followed by an energetic outburst (JD 2 452 700). One possibility to explain the periodic variations of the brightness of YY Her is the eclipsing model proposed by Hric et al. (2003). Some spectroscopic behaviour still remains inconsistent with this model. In the present work the energetic balances of the aforementioned events are calculated and a model with a deformed (non-homogeneous) envelope, surrounding the white dwarf is discussed. |
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