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Dear colleagues,
Our paper reporting QW Ser observations by the VSNET collaboration
team was accepted for publication in PASJ. This paper will
appear in the VSNET special issue scheduled in the early
next year. The LaTeX source, PostScript file, and PDF files
are available via the following URLs.
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/preprints/QW_Ser/qwser.tex
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/preprints/QW_Ser/qwser.ps
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/preprints/QW_Ser/qwser.pdf
Many thanks for the members of the VSNET collaboration team
and all the VSNET contributors!
Best regards,
Daisaku Nogami
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Title: A New SU UMa-Type Dwarf Nova, QW~Serpentis (= TmzV46)
Author: D. Nogami, M. Uemura, R. Ishioka, H. Iwamatsu, T. Kato,
E.P. Pavlenko, A. Baklanov, R. Novak, S. Kiyota, K. Tanabe,
G. Masi, L.M. Cook, K. Morikawa, P. Schmeer
Abstract:
We report on the results of the QW Ser campaign which has been continued
from 2000 to 2003 by the VSNET collaboration team. Four long outbursts
and many short ones were caught during this period. Our intensive
photometric observations revealed superhumps with a period of 0.07700(4)
d during all four superoutbursts, proving the SU UMa nature of this
star. The recurrence cycles of the normal outbursts and the
superoutbursts were measured to be $\sim$50 days and 240(30) days,
respectively. The change rate of the superhump period was
$-5.8\times10^{-5}$. The distance and the X-ray luminosity in the
range of 0.5-2.4 keV are estimated to be 380(60) pc and $\log L_{\rm X}
= 31.0 \pm 0.1$ erg s$^{-1}$. These properties have typical values for
an SU UMa-type dwarf nova with this superhump period.
Return to the Powerful Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
