334 citations · 4.8k across the 135 of their papers we have counts for
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The Infrared Counterpart of the X-Ray Nova XTE J1720-318
Tetsuya Nagata, Daisuke Kato, Daisuke Baba +15
We report on the discovery of an infrared counterpart to the X-ray transient XTE J1720-318 on 2003 January 18, nine days after an X-ray outburst, and the infrared light curve durin…
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…
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…
Period change of Superhumps in the WZ Sge-Type Dwarf Nova, HV Virginis
R. Ishioka, T. Kato, M. Uemura +12
After 10 years of quiescence, HV Vir underwent a superoutburst in January 2002. We report time-series observations clearly revealing the period change of ordinary superhumps during…
Discovery of a short plateau phase in the early evolution of a gamma-ray burst afterglow
Makoto Uemura, Taichi Kato, Ryoko Ishioka +1
We report optical observations during the first hour of the gamma-ray burst (GRB) afterglow of GRB021004. Our observation revealed the existence of a short plateau phase, in which…