THE PHOTOMETRIC INVESTIGATION OF THE ACTIVE POST-NOVA CP LAC IN HIGH AND LOW STATE OF BRIGHTNESS IN 2006-2008 YRS

A. A. Litvinchova, E. P. Pavlenko

Анотація


We present the result of investigations of the quasi-periodic and periodic light variations of the CP Lac connected with different sources in the binary system. We found that CP Lac in 2006 was brighter on ∼ 1m in comparison with 2008. The amplitude of the light variations in 2006 is growing with decreasing of the wave-length. The amplitude in B = 0m.3, in V = 0m.2. The mean brightness of CP Lac in 2008 varies from night to night during all interval of observation with amplitude 0m.5 in unfiltered light. Data of observations in 2006-2008 have a general period 0.037(5) day that is possibly related to the period of rotation of white dwarf.

Ключові слова


Stars, binary, cataclysmic, stars, individual, CP Lac.

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Посилання


Pavlenko E.P., Litvinchova A.A., Katysheva N.A. &Shugarov S.Yu.: 2007,ASP Conf. Ser., 370, 324.

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Peters C.S. & Thorstensen J.R.: 2006, PASP,118, 687.

Rodrigez-Gil P. & Torres M.A.P.: 2005,Astron & Astrophys., 431, 289.




DOI: https://doi.org/10.18524/1810-4215.2010.23.85217

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