activity
20072023
most citedEarly phase observations of extremely luminous Type Ia Supernova 2009dc

165 citations · 231 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.GA2023

Shock Excitation in Narrow Line Regions Powered by AGN Outflows

Misaki Mizumoto, Hiroaki Sameshima, Naoto Kobayashi +10

Outflows in the Active Galactic Nucleus (AGN) are considered to play a key role in the host galaxy evolution through transfer of a large amount of energy. A Narrow Line Region (NLR…

astro-ph.SR2023

Spectra of V1405 Cas at the very beginning indicate a low-mass ONeMg white dwarf progenitor

Kenta Taguchi, Keiichi Maeda, Hiroyuki Maehara +9

The lowest possible mass of ONeMg white dwarfs (WDs) has not been clarified despite its importance in the formation and evolution of WDs. We tackle this issue by studying the prope…

astro-ph.HE2009★ 7 cited

Photopolarimetric monitoring of 41 blazars in the optical and near-infrared bands with the Kanata telescope

Y. Ikejiri, M. Uemura, M. Sasada +7

Blazars are a kind of active galactic nuclei (AGN) in which a relativistic jet is considered to be directed along the line of sight. They are characterized by strong and rapid vari…

astro-ph.SR2009★ 35 cited

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 (…

astro-ph.HE2009★ 165 cited

Early phase observations of extremely luminous Type Ia Supernova 2009dc

M. Yamanaka, K. S. Kawabata, K. Kinugasa +31

We present early phase observations in optical and near-infrared wavelengths for the extremely luminous Type Ia supernova (SN Ia) 2009dc. The decline rate of the light curve is $Δm…

astro-ph2007★ 24 cited

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…