CCD Time-Resolved Photometry of Four Newly Discovered CVs

CCD Time-Resolved Photometry of Four Newly Discovered CVs

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摘要 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. 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.

作者 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

出处《天文研究与技术》 CSCD 1999年第S1期387-391,共5页 Astronomical Research & Technology

关键词 cataclysmic variable POLAR INTERMEDIATE POLAR cataclysmic variable polar intermediate polar

分类号 P141.6 [天文地球—天体物理]

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1999年第S1期

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CCD Time-Resolved Photometry of Four Newly Discovered CVs

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