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arXiv · 1103.2733

Activity of five WZ Sge-type systems in a few years after their outbursts

E. Pavlenko·O. Antoniuk·K. Antoniuk·M. Andreev·D. Samsonov·A. Baklanov·A. Golovin
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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 quasiperiodical 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.

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E. Pavlenko, O. Antoniuk, K. Antoniuk, M. Andreev, D. Samsonov, A. Baklanov, A. Golovin. 2011-03-14. Activity of five WZ Sge-type systems in a few years after their outbursts. https://doi.org/10.1063/1.3527835

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