[vsnet-alert 20457] MASTER OT J030205.67+254834.3

Lew Cook lew.cook at gmail.com
Fri Dec 9 11:42:22 JST 2016


Yet another period has jumped out of the light curve.  The period found is
0.003539d +/-0.000024 or 306 +/- 2 sec. The amplitude is 0.055 mag (CV)
based on 477  30 sec exposures with the CBA Concord 74 cm prime focus
telescope ((in deteriorating weather conditions on JD 2457729. This
analysis is based on PDM, Lomb-Scargle and ANOVA software in Tonny
Vanmunster's PERANSO software package.

I had thought the data was noisier than the statistical errors would
indicate. I am unsure of the astrophysical reason - WD rotation, inner disk
periodicity or something else. Enrique de Miiguel confirms this and
corrects the period to 282.19(3) c/d, or 306.18(3) s. He suggests the WD
spin as the possible interpretation.

Lew


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