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[vsnet-campaign-dn 1065] WZ Sge: analysis of July 31/Aug. 01 data
Dear Colleagues,
On July 31/aug. 01 I did my 7th run, 6 hours long. After reduction of 1000/1500 frames, I
obtained a light curve with a smaller amplitude (0.2 mag) modulation compared to the
previous days. Three main maxima (and one has to note that the main maxima strongly
reduced their evidence) have been recorded and, compared to the central one, the others
clearly show a different distance in time from the central peak. I performed PDM analysis,
getting a quite interesting results. I've found evidence of two quite equivalent period:
P1=0.0566d (Theta=0.691) and P2=0.0574d (Theta=0.696), this meaning that P2 is about 1.4
percent longer than P1 ; for
details see the plot I posted on my web page:
http://vsnet.eurolink.it/comets/wzsge.htm
Also, is interesting to note that the ecplises, if compared with the ephemerides reported
by Dr. Kato in [vsnet-campaign 1018], clearly anticipate their occurrance of the order of
about 10 minutes.
I will repeat this analysis when I will have available the entire dataset.
Regards,
Gianluca
--
***********************************************************************
* Gianluca Masi "Two things fill the soul *
* Via Madonna de Loco, 47 with awe and reverence [...]: *
* 03023 Ceccano (FR) the starry sky above me and *
* ITALY the moral law within me" *
* e-mail: gianmasi@fr.flashnet.it *
* web: http://vsnet.eurolink.it/comets/ I. Kant *
* Minor Planet Center Obs. Code: 470 - Ceccano *
* Center for Backyard Astrophysics - Italy *
* VSNET Collaboration Team member *
* CCD-astrometry-photometry@egroup.com mailing-list moderator *
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vsnet-adm@kusastro.kyoto-u.ac.jp
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