Superhumps in Cataclysmic Binaries. VII. CY Ursae Majoris

Details Superhumps in Cataclysmic Binaries. VII. CY Ursae Majoris Superhumps in Cataclysmic Binaries. VII. CY Ursae Majoris

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995pasp..107.1055h&link_type=abstract

Publications of the Astronomical Society of the Pacific, v.107, p.1055

Astronomy and Astrophysics

Astronomy

17

Cataclysmic Variables, Stars: Individual: Cy Ursae Majoris

Scientific paper

We report photometry of the dwarf nova CY Ursae Majoris during its 1995 superoutburst. A large-amplitude "superhump" at P = 0.07210 +- 0.00003 d was observed; the period decreased with P = -6 x 10^-5 over the 12 days of observation. The properties of the superhump appeared normal for SU UMa stars. But the frequencies of high harmonics were slightly blue-shifted from exact integer multiples of the fundamental, an effect which is unexplained but may require invoking differential precession of the accretion disk. (SECTION: Stars)

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