اشترك بالحزمة الذهبية واحصل على وصول غير محدود شمرا أكاديميا
تسجيل مستخدم جديدOn the superhumps and mass ratio of CzeV404
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تأليف
Taichi Kato
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CzeV404 is an SU UMa-type dwarf nova in the period gap. Kara et al. (2021) (arXiv:2107.02664) recently published photometric and spectroscopic observations and obtained a mass ratio q=0.16, which is in severe disagreement of q~0.32 estimated from superhump observations (Bakowska et al., 2014). I here present what analysis was wrong or outdated in Bakowska et al. (2014) and provide a new value of q=0.247(5), consistent with the known behavior of superhumps and the evolution of cataclysmic variables. CzeV404 does not look like an unusual dwarf nova as suggested by Kara et al. (2021) and I discuss that the link between SW Sex and SU UMa systems suggested by Kara et al. (2021) is not supported.
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