Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae

  title={Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae},
  author={T. Kato and A. Imada and M. Uemura and D. Nogami and H. Maehara and R. Ishioka and Hajime Baba and K. Matsumoto and Hidetoshi Iwamatsu and Kaori Kubota and K. Sugiyasu and Y. Soejima and Y. Moritani and T. Ohshima and H. Ohashi and J. Tanaka and M. Sasada and A. Arai and K. Nakajima and S. Kiyota and K. Tanabe and Kayuyoshi Imamura and Nanae Kunitomi and Kenji Kunihiro and Hiroki Taguchi and Mitsuo Koizumi and N. Yamada and Y. Nishi and Mayumi Kida and Sawa Tanaka and Rie Ueoka and H. Yasui and Koichi Maruoka and A. Henden and A. Oksanen and M. Moilanen and P. Tikkanen and M. Aho and B. Monard and H. Itoh and P. Dubovsk{\'y} and I. Kudzej and R. Dancikova and T. Vanmunster and J. Pietz and G. Bolt and D. Boyd and P. Nelson and T. Krajci and L. Cook and K. Torii and D. Starkey and J. Shears and L. Jensen and G. Masi and Rudolf Nov{\^a}k and T. Hynek and R. Koci{\'a}n and L. Kr{\'a}l and H. Ku{\vc}{\'a}kov{\'a} and Marek Kolasa and P. Stastny and B. Staels and E. al.},
  journal={Publications of the Astronomical Society of Japan},
  • T. Kato, A. Imada, +61 authors E. al.
  • Published 2009
  • Physics
  • Publications of the Astronomical Society of Japan
  • We systematically surveyed period variations of superhumps in SU UMa-type dwarf novae based on newly obtained data and past publications. In many systems, the evolution of superhump period are found to be composed of three distinct stages: early evolutionary stage with a longer superhump period, middle stage with systematically varying periods, final stage with a shorter, stable superhump period. During the middle stage, many systems with superhump periods less than 0.08 d show positive period… CONTINUE READING
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