Double cyclic variations in orbital period of the eclipsing cataclysmic variable EX Dra
نویسندگان
چکیده
منابع مشابه
Discovery of a bright eclipsing cataclysmic variable
Aims. We report on the discovery of J0644+3344, a bright deeply eclipsing cataclysmic variable (CV) binary. Methods. Optical photometric and spectroscopic observations were obtained to determine the nature and characteristics of this CV. Results. Spectral signatures of both binary components and an accretion disk can be seen at optical wavelengths. The optical spectrum shows broad H I, He I, an...
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ژورنال
عنوان ژورنال: Astrophysics and Space Science
سال: 2017
ISSN: 0004-640X,1572-946X
DOI: 10.1007/s10509-017-3091-2