Superoutburst of a New Sub-Period-Minimum Dwarf Nova CSS130418 in Hercules
DOI:
https://doi.org/10.14311/APP.2015.02.0165Abstract
Multicolour photometry of a new dwarf nova CSS130418 in Hercules, which underwent superoutburst on April 18, 2013, allow to classified it as a WZ Sge-type dwarf nova. The phase light curves for different stages of superoutburst are presented. The early superhumps were used to determine the orbital period Porb = 64.84(1) minutes, which is shorter than the period minimum ~78 minutes for normal hydrogen-rich cataclysmic variables. We found the mean period of ordinary superhumps Psh = 65.559(1) minutes. The quiescent spectrum is rich in helium, showing double peaked emissionlines of H I and He I from accretion disk, so the dwarf nova is in a late stage of stellar evolution.
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Published
2015-02-23
How to Cite
Chochol, D., Shugarov, S., Katysheva, N., Volkov, I., Zharova, A., Pavlenko, E., Pit, N., Zvagelsky, R., Antoniuk, O., Baklanov, A., Borisov, N., & Gabdeev, M. (2015). Superoutburst of a New Sub-Period-Minimum Dwarf Nova CSS130418 in Hercules. Acta Polytechnica CTU Proceedings, 2(1), 165–169. https://doi.org/10.14311/APP.2015.02.0165
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