SUPERHUMPS IN CATACLYSMIC BINARIES .7. CY URSAE MAJORIS

Authors
HARVEY DA PATTERSON J
Citation
Da. Harvey et J. Patterson, SUPERHUMPS IN CATACLYSMIC BINARIES .7. CY URSAE MAJORIS, Publications of the Astronomical Society of the Pacific, 107(717), 1995, pp. 1055-1058
Citations number
15
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Publications of the Astronomical Society of the Pacific
ISSN journal
00046280 → ACNP
Volume
107
Issue
717
Year of publication
1995
Pages
1055 - 1058
Database
ISI
SICI code
0004-6280(1995)107:717<1055:SICB.C>2.0.ZU;2-Y
Abstract
We report photometry of the dwarf nova CY Ursae Majoris during its 199 5 superoutburst. A large-amplitude ''superhump'' at P=0.07210+/-0.0000 3 d was observed; the period decreased with P= -6x10(-5) over the 12 d ays of observation. The properties of the superhump appeared normal fo r SU UMa stars. But the frequencies of high harmonics were slightly bl ueshifted from exact integer multiples of the fundamental, an effect w hich is unexplained but may require invoking differential precession o f the accretion disk.