Перегляд за Автор "Kudzej, I."

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  • Ескіз
    Документ
    "INTER-LONGITUDE ASTRONOMY" (ILA) PROJECT: CURRENT HIGHLIGHTS AND PERSPECTIVES. I. MAGNETIC VS. NON-MAGNETIC INTERACTING BINARY STARS
    (Astroprint, 2010-07) Andronov, Ivan L.; Antoniuk, K. A.; Baklanov, A. V.; Breus, V. V.; Burwitz, V.; Chinarova, L. L.; Chochol, D.; Dubovsky, P. A.; Han, W.; Hegedus, T.; Henden, A.; Hric, L.; Kim, Chun-Hwey; Kim, Yonggi; Kolesnikov, S. V.; Kudzej, I.; Liakos, A.; Niarchos, P. G.; Oksanen, A.; Patkos, L.; Petrik, K.; Pit, N. V.; Shakhovskoy, N. M.; Virnina, N. A.; Yoon, J.; Zola, S.
    We present a review of highlights of our photometric and photo-polarimetric monitoring and mathematical modeling of interacting binary stars of di erent types classical, asynchronous, intermediate polars with 25 timescales corresponding to di erent physical mechanisms and their combinations (part "Polar"); negative and positive superhumpers in nova-like and dwarf novae stars ("Superhumper"); symbiotic ("Symbiosis"); eclipsing variables with and without evidence for a current mass transfer ("Eclipser") with a special emphasis on systems with a direct impact of the stream into the gainor star's atmosphere, which we propose to call "Impactors", or V361 Lyr-type stars. Other parts of the ILA project are "Stellar Bell" (pulsating variables of di erent types and periods - M, SR, RV Tau, RR Lyr, Delta Sct) and "New Variable"
  • Ескіз
    Документ
    ON THE ADVANTAGES OF PHOTOMETRIC OBSERVATIONS OF THE GEOSTATIONARY SATELLITES AT SMALL PHASE ANGLES
    (Astroprint, 2014) Sukhov, P. P.; Karpenko, G. F.; Sukhov, K. P.; Epishev, V. P.; Motrunych, I. I.; Kudzej, I.; Dubovsky, P. A.
    As a rule, to determine photometric and dynamic characteristics of geostationary satellites required for their identification, long-lasting (from a half of the year to one year) photometric observations are needed at GSS different positions relative to the observer. The authors suggest conducting photometric measurements of GSS when they enter and exit the Earth's shadow near equinoxes. On these dates the GSS brightness increases by several magnitudes, so the use of telescopes with a mirror diameter of 50-70 cm can be effective. For shorter periods it is possible to get more information about the reflective properties of the object than during long-term observations at large phase angles. Several examples of photometric and dynamic characteristics of several GSS obtained near equinoxes are presented here.
  • Ескіз
    Документ
    PHOTOMETRY AND BLAZHKO EFFECT IN RR Lyr TYPE STAR DM Cyg
    (Astroprint, 2010-07) Udovichenko, S. N.; Dubovsky, P. A.; Kudzej, I.
    The photometric CCD observations for RR Lyr type star DM Cyg in Astronomical stations near Odessa(Ukraine) and Kolonica(Slovakia) in 2008 and near Odessa in 2009 have been carried out. The light curves in V system were obtained and the frequency Fourier analyse was performed. From Fourier spectra of the light curves 18 frequencies were identified. The weak Blazhko effect was detected.