Early Superhumps in the "King of the Superoutbursts" System WZ Sge

Details Early Superhumps in the "King of the Superoutbursts" System WZ Sge Early Superhumps in the "King of the Superoutbursts" System WZ Sge

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001oap....14...17a&link_type=abstract

Odessa Astronomical Publications, 14, 17-20

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2

Stars: Variable: Cataclysmic, Dwarf Novae: Superhumps: Wz Sge

Scientific paper

Time series analysis of 6 nights of CCD observations of WZ Sge after it's unexpected superoutburst on July 23, 2001 has shown highly asymmetric periodic variations with a period 0.0566513(22)deg, full amplitude 0.218(4)m and a very high asymmetry M-m=0.670(9), a secondary minimum 0.38P after the main one. The initial epochs are Tmax=BJD 2452118.7483(3) and Tmin=BJD 52118.7670(2). The characteristics of the phase light curve are listed. In addition, we have found superhumps with a semi-amplitude of 0.021(2)m and an ephemeris Tmax,sh=BJD 2452117.6830(8)+0.057435(45)d E. Other peaks at 21 and 25 minutes possibly correspond to quasi-periodic oscillations with an effective semi-amplitude of 0.014m.

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