1. Fast colorimetry of the flare star EV Lacertae from UBVRIobservations in 2004
- Author
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Zhilyaev, B. E., Romanyuk, Ya. O., Svyatogorov, O. A., Verlyuk, I. A., Kaminsky, B., Andreev, M., Sergeev, A. V., Gershberg, R. E., Lovkaya, M. N., Avgoloupis, S. J., Seiradakis, J. H., Contadakis, M. E., Antov, A. P., Konstantinova-Antova, R. K., Bogdanovski, R., Zhilyaev, B. E., Romanyuk, Ya. O., Svyatogorov, O. A., Verlyuk, I. A., Kaminsky, B., Andreev, M., Sergeev, A. V., Gershberg, R. E., Lovkaya, M. N., Avgoloupis, S. J., Seiradakis, J. H., Contadakis, M. E., Antov, A. P., Konstantinova-Antova, R. K., and Bogdanovski, R.
- Abstract
Aims.We report results of a quantitative colorimetric UBVRIanalysis of two flare events on the red dwarf EV Lac. The photometric data were obtained in September 2004, during the multi-site synchronous monitoring from the four observatories in Ukraine, Russia, Greece, and Bulgaria. These observations confirmed the presence of small-scale high-frequency oscillations (HFO) initially detected by Rodonó (1974, A&A, 32, 337) and recently reconfirmed by the authors. Here we discuss the color characteristics of flares and HFO.
- Published
- 2007
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