112 citations · 241 across the 6 of their papers we have counts for
8 papers
3-D Dynamics of Interactions between Stellar Winds and the Interstellar Medium as Seen by AKARI and Spitzer
Toshiya Ueta, Hideyuki Izumiura, Issei Yamamura +9
Recent far-infrared mapping of mass-losing stars by the AKARI Infrared Astronomy Satellite and Spitzer Space Telescope have suggested that far-infrared bow shock structures are pro…
Mass Loss History of the AGB star, R Cas
Toshiya Ueta, Robert E. Stencel, Issei Yamamura +9
We report here on the discovery of an extended far-infrared shell around the AGB star, R Cassiopeia, made by AKARI and Spitzer. The extended, cold circumstellar shell of R Cas span…
Stellar contents and star formation in the young open cluster Stock 8
Jessy Jose, A. K. Pandey, D. K. Ojha +7
We present CCD photometry of the young open cluster Stock 8 with the aim to study the basic properties and star formation scenario in this region. The radius of the cluste…
Testing the External Shock Model of Gamma-Ray Bursts using the Late-Time Simultaneous Optical and X-ray Afterglows
Yuji Urata, Ryo Yamazaki, Takanori Sakamoto +21
We study the ``normal'' decay phase of the X-ray afterglows of gamma-ray bursts (GRBs), which follows the shallow decay phase, using the events simultaneously observed in the R-ban…
Multi-color Shallow Decay and Chromatic Breaks in the GRB 050319 Optical Afterglow
K. Y. Huang, Y. Urata, P. H. Kuo +19
Multi-wavelength B, V, R, I observations of the optical afterglow of GRB 050319 were performed by the 1.05-m telescope at Kiso Observatory and the 1.0-m telescope at Lulin Observat…
Wide Field CCD photometry around nine open clusters
S. Sharma, A. K. Pandey, K. Ogura +3
In this paper we study the evolution of core and corona of nine open clusters using the projected radial density profiles derived from homogeneous CCD photometric data obtained thr…