Інші назви:Координированные наблюдения вспышек красного карлика EV Lac в 1998 г. Координовані спостереження спалахів червоного карлика EV Lac у 1998 р.
Посилання:Coordinated observations of the red dwarf flare star EV Lac in 1998 / I.Yu. Alekseev, A.P. Antov, S.J. Avgoloupis, G.M. Beskin, N.V. Borisov, V.E. Chalenko, M.E. Contadakis, R.E. Gershberg, V.R. Khalak, R.K. Konstantinova-Antova, V.M. Larionov, I.P. Panferova, V.L. Plokhotnichenko, L.A. Pustil’nik, Ya.O. Romanyuk, J.-H. Seiradakis, S.G. Sergeev, O.A. Svyatogorov, I.A. Verlyuk, B.E. Zhilyaev // Кинематика и физика небесных тел. — 2001. — Т. 17, № 2. — С. 147-156. — Бібліогр.: 17 назв. — англ.
Підтримка:The spectral research in 1998 described in this publication was partially supported by Grants R2Q000, R2Q200, U1C000 and U1C200 from the International Science Foundation and by Grant A-05-067 from the ESO C&EE Programme.
The results of photometric studies of the flare star EV Lac obtained in the course of cooperative observations in 1998 are presented. No significant brightness variations in IR were found from simultaneous observations of the star in UBVRI and H bands, in coincidence with the observed optical flares. Within the framework of the zonal spottedness model of stars the EV Lac surface inhomogeneity parameters are estimated.