CCD Time-Resolved Photometry of Four Newly Discovered CVs |
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| Authors: | Liu W Hu J. Y |
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| Affiliation: | Liu W,Hu J. Y. Beijing Astronomical Observatory,National Astronomical Observatories,The Chinese Academy of Sciences,Beijing 100012,China Email: liuwu@class1. bao. ac. cn |
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| Abstract: | We present time resolved optical light curves in R bands obtained from differential photometry on sequential CCD frams of 4 new discovered high galactic latitude CVs, which are discovered by our spectroscopic observations of the optical identification of ROSAT X ray sources. The analysis of the light curves shows repeatable periodicity in these objects. J020348 7 295921 exhibits 0 5m variation with orbital period of 258 min. J062518 2 733433 reveals a 0 3 mag modulation with orbital period of 254min. J230949 6 213523 shows probably both orbital period of 207 min and WD spin period of 25 min. J232953 9 062814 present short period of 32min, indicating a magnetic system. |
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| Keywords: | cataclysmic variable polar intermediate polar |
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