Hayashi Kohei

J-GLOBAL         Last updated: Apr 25, 2019 at 11:16
 
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Name
Hayashi Kohei
Affiliation
The University of Tokyo
Section
Institute for Cosmic Ray Research

Research Areas

 
 

Academic & Professional Experience

 
Apr 2018
 - 
Today
JSPS fellow, Institute for Cosmic Ray Research, The University of Tokyo
 
Oct 2017
 - 
Mar 2018
Special appointed research staff, National Astronomical Observatory of Japan
 
Oct 2016
 - 
Sep 2017
KIAA fellow, Kavli Institute for Astronomy and Astrophysics, Peking University
 
Oct 2016
 - 
Sep 2017
Visiting Associate Scientist (concurrent post), Kavli IPMU, The University of Tokyo
 
Apr 2016
 - 
Sep 2016
Project Researcher, Kavli IPMU, The University of Tokyo
 

Education

 
Apr 2010
 - 
Mar 2015
Astronomical Institute, Graduate School of Science, Tohoku University
 
Apr 2006
 - 
Mar 2010
Faculty of Science and Technology, Hirosaki University
 

Awards & Honors

 
Nov 2016
Boya Fellowship, Peking University
 
Mar 2015
Presidential Prize of Tohoku University, Tohoku University
 
May 2013
Best Student Poster Prize of IAU Symposium 298, International Astronomical Union
 

Published Papers

 
Kohei Hayashi, Shigeki Inoue
Monthly Notices of the Royal Astronomical Society: Letters      Nov 2018   [Refereed]
Kohei Hayashi, Michele Fabrizio, Ewa L {\L}okas, Giuseppe Bono, Matteo Monelli, Massimo Dall'Ora, Peter B Stetson
Monthly Notices of the Royal Astronomical Society      Nov 2018   [Refereed]
The Astrophysical Journal      Sep 2018   [Refereed]
Koji Ichikawa, Shun-ichi Horigome, Miho N Ishigaki, Shigeki Matsumoto, Masahiro Ibe, Hajime Sugai, Kohei Hayashi
Monthly Notices of the Royal Astronomical Society      Sep 2018   [Refereed]
Kohei Hayashi, Tomoaki Ishiyama, Go Ogiya, Masashi Chiba, Shigeki Inoue, Masao Mori
The Astrophysical Journal   843(2) 97   Jul 2017   [Refereed]

Misc

 
Tetsuya Fukushima, Masashi Chiba, Mikito Tanaka, Kohei Hayashi, Daisuke Homma, Sakurako Okamoto, Yutaka Komiyama, Masayuki Tanaka, Nobuo Arimoto, Tadafumi Matsuno
   Apr 2019
We report on the global structure of the Milky Way (MW) stellar halo up to
its outer boundary based on the analysis of blue-horizontal branch stars
(BHBs). These halo tracers are extracted from the Tex band
multi-photometry in the internal...
Kohei Hayashi, Ippei Obata
   Feb 2019
Ultra-light axion (ULA) dark matter is one of the possible solutions to
resolve small-scale problems, especially the core-cusp problem. This is because
ULA dark matter can create a central soliton core in all dark halos stemmed
from the quantum pr...
Yutaka Komiyama, Masashi Chiba, Mikito Tanaka, Masayuki Tanaka, Takanobu Kirihara, Yohei Miki, Masao Mori, Robert H. Lupton, Puragra Guhathakurta, Jason S. Kalirai, Karoline Gilbert, Evan Kirby, Myun Gyoon Lee, In Sung Jang, Sanjib Sharma, Kohei Hayashi
   Dec 2017
We present wide and deep photometry of the northwest part of the halo of the
Andromeda galaxy (M31) using Hyper Suprime-Cam on the Subaru Telescope. The
survey covers 9.2 degTex field in the Tex, Tex, and Tex bands and shows
a clear red gia...
Daisuke Homma, Masashi Chiba, Sakurako Okamoto, Yutaka Komiyama, Masayuki Tanaka, Mikito Tanaka, Miho N. Ishigaki, Kohei Hayashi, Nobuo Arimoto, Jose A. Garmilla, Robert H. Lupton, Michael A. Strauss, Satoshi Miyazaki, Shiang-Yu Wang, Hitoshi Murayama
   Apr 2017
We present the results from a search for new Milky Way (MW) satellites from
the first two years of data from the Hyper Suprime-Cam (HSC) Subaru Strategic
Program (SSP) Tex~degTex and report the discovery of a highly
compelling ultra-faint ...
Niki Klop, Fabio Zandanel, Kohei Hayashi, Shin'ichiro Ando
Phys. Rev. D 95, 123012 (2017)      Sep 2016
Dwarf spheroidals are low-luminosity satellite galaxies of the Milky Way
highly dominated by dark matter (DM). Therefore, they are prime targets to
search for signals from dark matter annihilation using gamma-ray observations.
While the typical as...