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The orbital period analyses for two cataclysmic variables: UZ Fornacis and V348 Puppis inside Period Gap
Z. -B. Dai, S. -B. Qian, E. Fernandez Lajus +1
Four newest CCD eclipse timings of the white dwarf for polar UZ Fornacis and Six updated CCD mid-eclipse times for SW Sex type nova-like V348 Puppis are obtained. The detailed O-C…
Orbital period analysis of eclipsing Z Cam-type Dwarf Nova EM Cygni: Evidence of magnetic braking and a third body
Zhibin Dai, Shengbang Qian
Combining with our newest CCD times of light minimum of EM Cygni, all 45 available times of light minimum including 7 data with large scatters are compiled and the updated O-C anal…
Orbital Period Changes and Their Explanations in Two Algol Binaries: WY Per and RW Leo
Liao Wen-Ping, Qian Sheng-Bang
WY Per and RW Leo are two Algol-type binaries. Based on our new CCD observations and the almost century-long historical record of the times of primary eclipse for WY Per and RW Leo…
A cyclical period variation detected in the updated orbital period analysis of TV Columbae
Zhibin Dai, Shengbang Qian, Eduardo Fernández Lajús +1
The two CCD photometries of the intermediate polar TV Columbae are made for obtaining the two updated eclipse timings with high precision. There is an interval time \sim 17yr since…