17 citations · 34 across the 8 of their papers we have counts for
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Cyclic Variability in Brightness of the Young Solar Analog BE Ceti
N. I. Bondar', M. M. Katsova
BE Cet is a young solar analog with an age of 0.6 Gyr and a rotation period of 7.655 days. According to chromospheric and photospheric indices, its activity is higher than the sola…
Detection of Optical Flares on the Selected G-M Dwarfs from Long-term Photometric Series
N. I. Bondar', M. M. Katsova, A. A. Shlyapnikov
We have carried out a search for flares from the analysis of light curves for 12 active G, K, and M dwarfs. As sources of data we used ground-based observations in 2000-2020 from t…
Long-Term Activity in Photospheres of Low-Mass Stars with Strong Magnetic Fields
N. I. Bondar', M. M. Katsova
The behavior of the average annual luminosity of K-M dwarfs OU Gem, EQ Vir, V1005 Ori and AU Mic was studied at time intervals of several decades. The main sources of photometric d…
Wavelet analysis of the long-term activity of V833 Tau
R. Stepanov, N. I. Bondar', M. M. Katsova +2
The bulk of available stellar activity observations is frequently checked for the manifestation of signs in comparison with the known characteristic of solar magnetic modulation. T…
Cycles on the Solar-Type Stars and Cooler Dwarfs
N. I. Bondar, M. M. Katsova, M. A. Livshits
Features of the development of activity cycles in the solar-type stars and fast-rotating cool dwarfs have been considered for 65 stars observed in some decades. Cycles with duratio…
Cool spots on the surface of the active giant PZ Mon
Yu. V. Pakhomov, V. I. Shenavrin, N. I. Bondar' +4
Based on the multiband (BVRIJHKL) photometric observations of the active red giant PZ Mon performed for the first time in the winter season of 2017-2018, we have determined the mai…