The 2003 Superoutburst of an SU UMa-type Dwarf Nova, GO Comae Berenices
Astrophysics
2007-05-23 v1
Abstract
We photometrically observed the 2003 June superoutburst of GO Gom. The mean superhump period was 0.063059(13) d. The resultant data revealed that (1) the obtained light curve contained a precursor, (2) a plateau stage of the object lasted 8 days, which is remarkably shorter than that of ordinary SU UMa-type dwarf novae, and (3) the amplitude of the superoutburst was less than 5 mag, which is unpredictably small when taking into account the fact that the supercycle of GO Com is about 2800 days. In order to explain these anomalies, a mass elimination process from the accretion disk, such as evaporation, may play an important role.
Cite
@article{arxiv.astro-ph/0412450,
title = {The 2003 Superoutburst of an SU UMa-type Dwarf Nova, GO Comae Berenices},
author = {Akira Imada and Taichi Kato and Makoto Uemura and Ryoko Ishioka and Thomas Krajci and Yasuo Sano and Tonny Vanmunster and Donn R. Starkey and Lewis M. Cook and Jochen Pietz and Daisaku Nogami and Bill Yeung and Kazuhiro Nakajima and Kenji Tanabe and Mitsuo Koizumi and Hiroki Taguchi and Norimi Yamada and Yuichi Nishi and Brian Martin and Ken'ichi Torii and Kenzo Kinugasa and Christopher P. Jones},
journal= {arXiv preprint arXiv:astro-ph/0412450},
year = {2007}
}
Comments
11 pages, 7 figures, to appear in PASJ