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[vsnet-alert 6898] 1RXS J232953.9+062814 slow fading continues
- Date: Tue, 20 Nov 2001 16:40:27 +0900 (JST)
- To: vsnet-alert, vsnet-campaign-dn, vsnet-superoutburst
- From: Taichi Kato <tkato>
- Subject: [vsnet-alert 6898] 1RXS J232953.9+062814 slow fading continues
- Sender: owner-vsnet-alert@kusastro.kyoto-u.ac.jp
1RXS J232953.9+062814 slow fading continues
Dear Colleagues,
After the rebrightening observed on November 10-11, the star has shown
a steady linear decline at a constant rate of 0.13 mag/d (at least up to
Nov. 18). Such a linear post-superoutburst decline is rather frequently
seen in WZ Sge-type dwarf novae or large-amplitude SU UMa-type dwarf novae,
such as WX Cet (cf. Kato et al. 2001, PASJ 53, 893). Together with the
presence of a post-superoutburst rebrightening, and double-humped light curve
in quiescence, this star seems to bear characteristics similar to those of
WZ Sge-type stars, as well as other peculiar properties already described.
The short-term light curve is still dominated by double-wave humps, with
occasional brightenings (time scale ~1-2 hr), during which humps tend to
become rather unclear.
The VSNET Collaboration team has received many new data, which will be
reviewed later by Uemura-san. We have been also keenly analyzing all
recent Kyoto observations, made on all nights.
Please send any data and information to Uemura-san also
(uemura@kusastro.kyoto-u.ac.jp).
Regards,
Taichi Kato
VSNET Collaboration team
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vsnet-adm@kusastro.kyoto-u.ac.jp