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[vsnet-alert 5574] RE: [vsnet-campaign 696] V344 Ori: superhump detected! - no direct confirmation (yet?)



Dear Taichi and others,

I just finished analysing my CCD photometry observations of V344 Ori,
obtained on 2001, January 16/17 at CBA Belgium Observatory using the usual
equipment. I had an uninterrupted 7.7 hours run under good circumstances.

The resulting light curve is somewhat puzzling to me and doesn't seem to
confirm your findings. There's indeed a 0.1 mag modulation, but it
definitely doesn't look like a common superhump, being very irregular in
shape and pattern. Furthermore, an attempt to determine the period of the
modulation, using the PDM method, did not result in a secure value either.

I surely hope your observations were more conclusive, as it's impossible for
me - looking at my own photometry results - to confirm your findings and
classification. I would be interested in knowing the results of your period
analysis and further characteristics of the object.

If you're interested, I'm of course willing to share my complete set of
observations for further analysis.

With kind regards,
Tonny Vanmunster
CBA Belgium Observatory

> -----Original Message-----
> From: owner-vsnet-campaign@kusastro.kyoto-u.ac.jp
> [mailto:owner-vsnet-campaign@kusastro.kyoto-u.ac.jp]On Behalf Of Makoto
> Uemura
> Sent: Tuesday 16 January 2001 13:25 PM
> To: vsnet-alert@kusastro.kyoto-u.ac.jp;
> vsnet-campaign@kusastro.kyoto-u.ac.jp
> Subject: [vsnet-campaign 696] V344 Ori: superhump detected!
>
>
>
> V344 Ori: superhump detected!
>
>     In the tonight light curve of V344 Ori observed at Kyoto on
> January 16 9:30 - 11:45, we have detected clear superhumps
> with an amplitude of about 0.1mag, which indicates V344 Ori is now
> a new member of SU UMa-type dwarf novae.
>
>     We are now observing V344 Ori at Kyoto.  A period of the superhumps
> will be revealed through this run.
>
>     Follow-up observations are strongly urged.
>
> Regards,
> Makoto Uemura, Taichi Kato, Ryoko Ishioka
> at Kyoto University
>
>

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