492 citations · 4.8k across the 143 of their papers we have counts for
9 papers · 2 filters
Photometric Observations of an SU UMa-type Dwarf Nova VW Coronae Borealis during Outbursts
D. Nogami, M. Uemura, R. Ishioka +2
We report the photometric observations of an SU UMa-type dwarf nova VW CrB during two superoutbursts in 2001 and 2003 and a normal outburst in 2003. Superhumps with a period of 0.0…
Superhumps and Repetitive Rebrightenings of the WZ Sge-Type Dwarf Nova, EG Cancri
T. Kato, D. Nogami, K. Matsumoto +1
We report on time-resolved photometric observations of the WZ Sge-type dwarf nova, EG Cnc (Huruhata's variable, see also http://www.kusastro.kyoto-u.ac.jp/vsnet/DNe/egcnc.html), du…
A New SU UMa-Type Dwarf Nova, QW Serpentis (= TmzV46)
D. Nogami, M. Uemura, R. Ishioka +11
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 duri…
Variable Star Network: World Center for Transient Object Astronomy and Variable Stars
T. Kato, M. Uemura, R. Ishioka +4
Variable Star Network (VSNET, http://www.kusastro.kyoto-u.ac.jp/vsnet/) is a global professional-amateur network of researchers in variable stars and related objects, particularly…
Superhumps in the Rarely Outbursting SU UMa-Type Dwarf Nova, HO Delphini
T. Kato, D. Nogami, M. Moilanen +1
We observed the 1994, 1996 and 2001 outbursts of HO Del. From the detection of secure superhumps, HO Del is confirmed to be an SU UMa-type dwarf nova with a superhump period of 0.0…
Structure in the early afterglow lightcurve of the gamma-ray burst of 29 March 2003
Makoto Uemura, Taichi Kato, Ryoko Ishioka +6
Gamma-ray bursts (GRBs) are energetic explosions that for 0.01--100 s are the brightest gamma-ray sources in the sky. Observations of the early evolution of afterglows we expected…
In-the-Gap SU UMa-Type Dwarf Nova, Var73 Dra with a Supercycle of about 60 Days
D. Nogami, M. Uemura, R. Ishioka +13
An intensive photometric-observation campaign of the recently discovered SU UMa-type dwarf nova, Var73 Dra was conducted from 2002 August to 2003 February. We caught three superout…
Grazing Eclipsing Dwarf Nova CW Monocerotis: Dwarf Nova-Type Outburst in a Possible Intermediate Polar?
T. Kato, M. Uemura, S. Kiyota +10
We observed the 2002 October-November outburst of the dwarf nova CW Mon. The outburst showed a clear signature of a premaximum halt, and a more rapid decline after reaching the out…
The SU UMa Nature of the Dwarf Nova, DM Lyrae
D. Nogami, H. Baba, K. Matsumoto +1
We carried out time-resolved -band photometry of DM Lyr during long outbursts in 1996 July and in 1996 February-March at Ouda Station, Kyoto University and at Osaka Kyoiku Unive…