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| Paper: |
Photometric Activity Cycles of UX Ari |
| Volume: |
518, Physics of Magnetic Stars |
| Page: |
191 |
| Authors: |
Savanov, I. S.; Naroenkov, S. A.; Nalivkin, M. A.; Dmitrienko, E. S.; Karpov, S.; Beskin, G.; Birukov, A.; Bondar, S.; Plokhotnichenko, V.; Ivanov, E.; Katkova, E.; Orekhova, N.; Perkov, A.; Sasyuk, V.; Pandey, J. C.; Karmakar, S. |
| Abstract: |
New observations of the RS CVn variable UX Ari were carried out
using Mini-MegaTORTORA (MMT-9) wide-field optical monitoring
system and robotic wide-angle observation system in Zvenigorod
observatory of INASAN. We defined more accurately the cycles of
the long-period variability of UX Ari and noticed considerable
changes in the shape of the power spectrum. In the long-term
region we find three cycles at 5, 13.2 and 30 years. It is
possible that some cycles are aliases but the most promising
period of 30 years is clearly seen. We suppose that P(cycle)
estimations for active stars over 10–50 years intervals should
made it possible to build a new family of relations on diagrams
P(cycle)/P(rot) versus 1/P(rot). |
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