Kawabata Koji

J-GLOBAL         Last updated: Dec 7, 2018 at 04:29
Kawabata Koji
Hiroshima University
Job title
Research funding number

Research Areas


Academic & Professional Experience

Apr 1999
Dec 2000
Postdoctoral Fellow, Optical and Infrared Astronomy Division, National Astronomical Observatory
Jan 2001
Oct 2003
COE Postdoctoral Fellow, Optical and Infrared Astronomy Division, National Astronomical Observatory
Nov 2003
Mar 2004
Research Associate, Graduate School of Science, Hiroshima University
Apr 2004
Mar 2007
Research Associate, Hiroshima Astrophysical Science Center, Hiroshima University
Apr 2007
Mar 2009
Assistant Professor, Hiroshima Astrophysical Science Center, Hiroshima University


Apr 1996
Mar 1999
Astronomy, Graduate School of Science, Tohoku University
Apr 1990
Mar 1994
Astronomical Institute, Faculty of Science, TOHOKU UNIVERSITY

Published Papers

Kawabata, K. S.; Akitaya, H.; Yamanaka, M.; Itoh, R.; Maeda, K.; Moritani, Y.; Ui, T.; Kawabata, M.; Mori, K.; Nogami, D. et al.
ASTROPHYSICAL JOURNAL LETTERS   795(1)    Nov 2014   [Refereed]
We present optical and near-infrared multi-band linear polarimetry of the highly reddened Type Ia supernova (SN) 2014J that appeared in M82. SN 2014J exhibits large polarization at shorter wavelengths, e.g., 4.8% in the B band, which decreases rap...
Kawabata, K. S.; Maeda, K.; Nomoto, K.; Taubenberger, S.; Tanaka, M.; Deng, J.; Pian, E.; Hattori, T.; Itagaki, K.
NATURE   465(7296) 326-328   May 2010   [Refereed]
The unusual helium-rich (type Ib) supernova SN 2005E is distinguished from all supernovae hitherto observed by its faint and rapidly fading light curve, prominent calcium lines in late-phase spectra and lack of any mark of recent star formation ne...
Astrophysical Journal   539 L19-L22   Aug 2003   [Refereed]
Astrophysical Journal   580 L39-L42   Nov 2002   [Refereed]
Kawabata, Koji S.; Tanaka, Masaomi; Maeda, Keiichi; Hattori, Takashi; Nomoto, Ken'ichi; Tominaga, Nozomu; Yamanaka, Masayuki
ASTROPHYSICAL JOURNAL   697(1) 747-757   May 2009   [Refereed]
Supernova (SN) 2006gy is an extremely luminous Type IIn SN characterized by the bright peak magnitude M-R similar to -22 mag and its long duration. The mechanism giving rise to its huge luminosity is still unclear. We performed optical spectroscop...

Conference Activities & Talks

Supernovae and related objects unveiled by TMT [Invited]
Koji S. Kawabata
TMT Science and Instrumentation Workshop 2011   28 Mar 2011   
Probing the evolution of massive stars by late-time observations of core-collapse supernovae [Invited]
Koji S. Kawabata
Kore-Japan Collaboration Workshop   15 Nov 2012   Subaru Telescope, National Astronomical Observatory of Japan, and KASI, Korea
TMT Polarimetry for Supernovae and Related Objects [Invited]
Koji S. Kawabata
TMT Science and Instrumentation Workshop 2012   10 Dec 2012   
Prompt optical polarimetry of GRB afterglow
Koji S. Kawabata
Steller Polarimetry: From Birth to Death   27 Jun 2011   
Future SGMAP Project: Optical Polarimetric Survey of Northern Hemisphere
Koji S. Kawabata
Understanding Relativistic Jets by Polarimetry and Synergetic Study from Radio to TeV   24 Mar 2014   CORE-U, Hiroshima Univ.

Research Grants & Projects

Project Year: 2014 - 2016
Project Year: 2011 - 2013    Investigator(s): YOSHIDA, Michitoshi
We made performance evaluations of InGaAs near-infrared image sensor which are produced by Hamamatsu Photonics Co. Ltd. (HPK) under cold environment in collaboration with HPK. We tested a 64 x 64 pixels with 50 micron pitch array and 128 x 128 pix...
Project Year: 2011 - 2013    Investigator(s): KAWABATA, koji
We have developed a wide-band polarimetric module dedicated for the Hiroshima Optical and Near-InfraRed camera (HONIR) and realized a high-precision polarimetric capability at wavelengths 0.5 -- 2.4 microns. We also performed polarimetric monitori...
Project Year: 2009 - 2010
Project Year: 2008 - 2011    Investigator(s): KAWABATA, Koji
We have developed an automatic observation system with` Kanata' 1. 5-m high-speed moving telescope and an wide-field optical polarimeter HOWPol, and discussed the magnetic structure of GRB relativistic jets on the basis of the polarization of earl...