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[vsnet-obs 773] OUTBURST OF GO COM !!!
- Date: Mon, 17 Jul 1995 02:14:21 +0200
- To: vsnet-obs@kusastro.kyoto-u.ac.jp
- From: tvanmuns@innet.be (Tonny Vanmunster)
- Subject: [vsnet-obs 773] OUTBURST OF GO COM !!!
- Cc: observations@aavso.org, gp@star.sr.bham.ac.uk, extpasc@rz.uni-sb.de, jpietz@astro.uni-bonn.de, lasse.teist@thranethrane.dk400.dk, afoev@simbad.u-strasbg.fr, ebroens@innet.be
- Reply-To: vsnet-obs@kusastro.kyoto-u.ac.jp
- Sender: owner-vsnet-obs@kusastro.kyoto-u.ac.jp
Dear colleagues,
*********************************************
* OUTBURST OF GO Com [UGWZ:, 13.1p - 20p] *
*********************************************
1995 Jul 16.951 UT, 13.3 (T. Vanmunster, 0.35-m refl, seq: GSC);
Confirmation is urgently needed !
In IBVS 3489, T. Kato and R. Hirata describe CCD photometry of
GO Com, and report quasi-periodic modulation with an amplitude
of 0.5 mag, and a "periodicity" of 33 min. The same paper
mentions a major outburst of GO Com, observed on May 30, 1989
(mv 13.2) by Watanabe and Kato. As far as we could trace, this
constitutes the last reported positive observation of GO Com !
Another publication on GO Com (PASP, 102, 758-772, 1990), by
Steve Howell, Paula Szkody a.o., mentions that GO Com has been
seen in outburst at least three times. They further describe
photometric observations showing approx. 0.5 mag flickering on
top of a determined 95-min period (assumed to be the orbital
period). The 95-min period, although seen with high confidence,
may simply be flickering.
It finally is interesting to note that GO Com is classified as
a TOAD (Tremendous Outburst Amplitude Dwarf Nova) by S. Howell.
We would very much appreciate receiving further information,
and observations, of this intriguing object !
Best regards,
Tonny Vanmunster