718 citations · 1.1k across the 9 of their papers we have counts for
9 papers
Prominent Polarized Flares of the Blazars AO 0235+164 and PKS 1510-089
Mahito Sasada, Makoto Uemura, Yasushi Fukazawa +9
We report on multi-band photometric and polarimetric observations of the blazars AO 0235+164 and PKS 1510-089. These two blazars were active in 2008 and 2009, respectively. In thes…
Optical Behavior of GRB 061121 around its X-Ray Shallow Decay Phase
T. Uehara, M. Uemura, A. Arai +8
Aims. We report on a detailed study of the optical afterglow of GRB 061121 with our original time-series photometric data. In conjunction with X-ray observations, we discuss the or…
Infrared/optical - X-ray simultaneous observations of X-ray flares in GRB 071112C and GRB 080506
T. Uehara, M. Uemura, K. S. Kawabata +13
We investigate the origin of short X-ray flares which are occasionally observed in early stages of afterglows of gamma-ray bursts (GRBs). We observed two events, GRB 071112C and GR…
Optical and Near-Infrared Photometric Observation during the Superoutburst of the WZ Sge-Type Dwarf Nova, V455 Andromedae
R. Matsui, M. Uemura, A. Arai +17
We report on optical and infrared photometric observations of a WZ Sge-type dwarf nova, V455 And during a superoutburst in 2007. These observations were performed with the KANATA (…
Mapping dust column density in dark clouds by using NIR scattered light : Case of the Lupus 3 dark cloud
Yasushi Nakajima, Ryo Kandori, Motohide Tamura +3
We present a method of mapping dust column density in dark clouds by using near-infrared scattered light. Our observations of the Lupus 3 dark cloud indicate that there is a well d…
Discovery of a WZ Sge-Type Dwarf Nova, SDSS J102146.44+234926.3: Unprecedented Infrared Activity during a Rebrightening Phase
M. Uemura, A. Arai, T. Krajci +26
Several SU UMa-type dwarf novae, in particular, WZ Sge-type stars tend to exhibit rebrightenings after superoutbursts. The rebrightening phenomenon is problematic for the disk inst…
Spitzer SAGE survey of the Large Magellanic Cloud II: Evolved Stars and Infrared Color Magnitude Diagrams
R. D. Blum, J. R. Mould, K. A. Olsen +47
Color-magnitude diagrams (CMDs) are presented for the Spitzer SAGE (Surveying the Agents of a Galaxy's Evolution) survey of the Large Magellanic Cloud (LMC). IRAC and MIPS 24 um ep…
Spitzer Survey of the Large Magellanic Cloud, Surveying the Agents of a Galaxy's Evolution (SAGE) I: Overview and Initial Results
Margaret Meixner, Karl D. Gordon, Remy Indebetouw +46
We are performing a uniform and unbiased, ~7x7 degrees imaging survey of the Large Magellanic Cloud (LMC), using the IRAC and MIPS instruments on board the Spitzer Space Telescope…
Deep near-infrared observations of W3 Main star forming region
D. K. Ojha, M. Tamura, Y. Nakajima +8
We present a deep JHKs-band imaging survey of the W3 Main star forming region, using the near-infrared camera, SIRIUS, mounted on the University of Hawaii 2.2m telescope. The near-…