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[vsnet-chat 5365] V4641 Sgr: July 8-9 data from Monard
- Date: Fri, 12 Jul 2002 16:19:16 +0200
- To: <toniscarmato@hotmail.com>, <vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp>
- From: "Berto Monard" <LAGMonar@csir.co.za>
- Subject: [vsnet-chat 5365] V4641 Sgr: July 8-9 data from Monard
- Disclaimer: The CSIR exercises no editorial control over E-mail messages originating in the organisation and the views in this message are therefore not necessarily those of the CSIR and/or its employees.
- Sender: owner-vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp
Dear Toni,
with the 12.8 limiting magnitude of your observing equipment, as you
put it, I doubt very much that you could have possibly seen V4641 Sgr on
the reported nights. All observations from experienced observers point
at a v magnitude for this McQ between 13.2 and 13.6 with possibly a
couple of light flickerings reaching 13.0 as per Ouda measurements
before 8 July.
Regards,
Berto
>>> "Toni Scarmato" <toniscarmato@hotmail.com> 07/12/02 03:38PM >>>
Dear all,
regarding my observations of SGR4641 starting at 2002 July 5, I am sure
that
I saw the intense increase of magnitude of the "star".
Also, I have observed this behaviour again the nigth of July 5 and 6.
Yet, the flares that I Have reported are not simultaneous.
To value the magnitude of the flares I Have used the stars GSC
6848:3606
10.9 and GSC 6848:3245 11.9. Because the short time to make the
estimation
of the magnitude it is possible that I Have overestimated the flares,
but this is that I saw.
Best Regards,
Toni Scarmato
----- Original Message -----
From: "Taichi Kato" <tkato@kusastro.kyoto-u.ac.jp>
To: <vsnet-campaign-v4641sgr@ooruri.kusastro.kyoto-u.ac.jp>
Cc: <vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp>
Sent: Friday, July 12, 2002 12:18 PM
Subject: [vsnet-chat 5363] V4641 Sgr: July 8-9 data from Monard
> V4641 Sgr: July 8-9 data from Monard
>
> Dear Colleagues,
>
> We have just received a long time-resolved CCD photometric run on
> July 8-9 from Berto Monard. The data show some modulations, but no
> sharp flares. The object has dramatically changed its behavior
between
> July 7 and 8. The data also confirmed that all reported "flares"
> simultaneously observed by Toni Scarmato must have been sprious!!
> [Toni, please learn from your colleagues how to make reliable
> observations! -> Reliability matters show go to vsnet-chat]
>
> Regards,
> Taichi Kato
> VSNET Collaboration team
>
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