1. Activity of five WZ Sge-type systems in a few years after their outbursts.
- Author
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Pavlenko, E., Antoniuk, O., Antoniuk, K., Andreev, M., Samsonov, D., Baklanov, A., and Golovin, A.
- Subjects
DWARF novae ,STARBURSTS ,ASTRONOMICAL observations ,WHITE dwarf stars ,STELLAR oscillations ,ACCRETION (Astrophysics) ,ASTRONOMICAL photometry - Abstract
We present results of observations and analysis of five WZ-type dwarf novae: SDSS J080434.20+510349.2, SDSS J102146.44+234926.3, V1108 Her, ASAS J0025 and WZ Sge in 3-7 years after their outbursts. We found: 1) the observational evidences that emerging of the white dwarf nonradial pulsation in SDSS J080434.20+510349.2 [1] is no longer a regular since 3-rd year after 2006 outburst; 2) the true value of orbital period for V1108 Her (0.05672 d) and mass ratio (0.09); 3) The main feature of quiescent light curves of ASAS J0025 is the high-amplitude quasi-periodical light variations probably originated in accretion disk; 4) in SDSS J102146.44+234926.3 in some occasions the brightness is modulated by period of 0.01367 day or with the multiple of it. The main brightness modulation of J080434.20+510349.2, V1108 Her and WZ Sge is the orbital one and has two-humped shape. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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