OKAMOTO Takashi

J-GLOBAL         Last updated: Jul 9, 2019 at 14:47
 
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Name
OKAMOTO Takashi
URL
http://www.ccs.tsukuba.ac.jp/Astro/Members/takashi/
Affiliation
Hokkaido University
Job title
lecturer
Degree
PhD in Science(Hokkaido University)
Research funding number
50541893

Research Interests

 
 

Research Areas

 
 

Academic & Professional Experience

 
Jul 2017
 - 
Today
Lecturer, Faculty of Science, Hokkaido University
 
Mar 2013
 - 
Jun 2017
Assistant Professor, Faculty of Science, Hokkaido University
 
Apr 2012
 - 
Mar 2013
Associate Professor, University of Tsukuba Faculty of Pure and Applied Sciences
 
2011
   
 
- Associate Professor at Graduate School of Pure and Applied Sciences, University of Tsukuba
 
2010
 - 
2011
 Senior Researcher at Center for Computational Sciences, University of Tsukuba
 

Education

 
 
 - 
2001
Department of Physics, Graduate School, Division of Natural Science, Hokkaido University
 

Published Papers

 
Hikari Shirakata, Toshihiro Kawaguchi, Taira Oogi, Takashi Okamoto, Masahiro Nagashima
Monthly Notices of the Royal Astronomical Society   487(1) 409-419   Jun 2019   [Refereed]
We show the Eddington ratio distributions of supermassive black holes at a
wide redshift range (0 < z < 8) obtained with a semi-analytic model of galaxy
formation. The distribution is broadly consistent with observational estimates
at low redshift...
Tamura Yoichi, Mawatari Ken, Hashimoto Takuya, Inoue Akio K., Zackrisson Erik, Christensen Lise, Binggeli Christian, Matsuda Yuichi, Matsuo Hiroshi, Takeuchi Tsutomu T., Asano Ryosuke S., Sunaga Kaho, Shimizu Ikkoh, Okamoto Takashi, Yoshida Naoki, Lee Minju M., Shibuya Takatoshi, Taniguchi Yoshiaki, Umehata Hideki, Hatsukade Bunyo, Kohno Kotaro, Ota Kazuaki
ASTROPHYSICAL JOURNAL   874(1)    Mar 2019   [Refereed]
Masayuki Tanaka, Masashi Chiba, Kohei Hayashi, Yutaka Komiyama, Takashi Okamoto, Andrew Cooper, Sakurako Okamoto, Lee Spitler
The Astrophysical Journal   865(2) id125-12   Oct 2018   [Refereed]
Hashimoto Takuya, Laporte Nicolas, Mawatari Ken, Ellis Richard S., Inoue Akio K., Zackrisson Erik, Roberts-Borsani Guido, Zheng Wei, Tamura Yoichi, Bauer Franz E., Fletcher Thomas, Harikane Yuichi, Hatsukade Bunyo, Hayatsu Natsuki H., Matsuda Yuichi, Matsuo Hiroshi, Okamoto Takashi, Ouchi Masami, Pello Roser, Rydberg Claes-Erik, Shimizu Ikkoh, Taniguchi Yoshiaki, Umehata Hideki, Yoshida Naoki
NATURE   557(7705) 392-+   May 2018   [Refereed]
Nguyen Ngan K., Pettitt Alex R., Tasker Elizabeth J., Okamoto Takashi
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   475(1) 27-42   Mar 2018   [Refereed]
Hikari Shirakata, Takashi Okamoto, Toshihiro Kawaguchi, Masahiro Nagashima, Tomoaki Ishiyama, Ryu Makiya, Masakazu A. R. Kobayashi, Motohiro Enoki, Taira Oogi, Katsuya Okoshi
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   482(4) 4846-4873   Feb 2018   [Refereed]
We present the latest results of a semi-analytic model of galaxy formation,
"New Numerical Galaxy Catalogue", which is combined with large cosmological
N-body simulations. This model can reproduce statistical properties of galaxies
at z < 6.0. We ...
Ishiki Shohei, Okamoto Takashi, Inoue Akio K.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   474(2) 1935-1943   Feb 2018   [Refereed]
Oogi Taira, Enoki Motohiro. Ishiyama Tomoaki, Kobayashi Masakazu A. R., Makiya Ryu, Nagashima Masahiro, Okamoto Takashi, Shirakata Hikari
Monthly Notices of the Royal Astronomical Society: Letters   471(1) L21-L25   Oct 2017   [Refereed]
Ishiki Shohei, OKAMOTO Takashi
Monthly Notices of the Royal Astronomical Society: Letters   466(1) L123-L127   Mar 2017   [Refereed]
Tanaka Satoshi, Yoshikawa Kohji, Okamoto Takashi, Hasegawa Kenji
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   67(4)    Aug 2015   [Refereed]

Misc

 
Formation and evolution of galactic halos in a cluster of galaxies
ElsevierNuclear Physics B Proceedings Supplements   80    2000
Galaxy Distribution in Clusters of Galaxies
Kluwer AcademicProceedings of the 183rd symposium of the International Astronomical Union held in Kyoto, Japan, August 18-22, 1997   262   1999
Properties of Galaxies in Rich Clusters
Astronomical Society of the Pacific,The Physics of Galaxy Formation, ASP Conference Proceedings, Vol. 222   222 149   2001
Study of Multiphase Interstellar Matter in a Gas Rich Dwarf Galaxy
The Astronomical Society of JapanThe Proceedings of the IAU 8th Asian-Pacific Regional Meeting   2 289-290   2002
Environmental Effects on Evolution of Cluster Galaxies
Astronomical Society of the PacificAstrophysical Supercomputing using Particle Simulations, IAU Symposium #208   435   2003
Cloud mass function in a gas rich dwarf galaxy
Astronomical Society of the PacificAstrophysical Supercomputing using Particle Simulations, IAU Symposium #208   441   2003
Substructure of Galaxy Clusters and Cosmological Constant
Astronomical Society of the PacificAstrophysical Supercomputing using Particle Simulations, IAU Symposium #208   447   2003
Morphological Evolution of Cluster Galaxies
Galaxy Evolution: Theory & Observations (Eds. Vladimir Avila-Reese, Claudio Firmani, Carlos S. Frenk & Christine Allen) Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias)   17 98-99   2003
Structure of Clusters of Galaxies and Open CDM and rHΛ CDM
Studies of Galaxies in the Young Universe with New Generation Telescope, Proceedings of Japan-German Seminar   99-106   2004
The roles of ram-pressure stripping and minor mergers in the evolution of galaxies
Outskirts of Galaxy Clusters: Intense Life in the Suburbs. Edited by Antonaldo Diaferio, IAU Colloquium #195   534-538   2004
Cosmic cookery: making a stereoscopic 3D animated movie
Stereoscopic Displays and Virtual Reality Systems XIII. Edited by Woods, Andrew J.; Dodgson, Neil A.; Merritt, John O.; Bolas, Mark T.; McDowall, Ian E. Proceedings of the SPIE   6055 34-45   2006
American Institute of PhysicsORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology. AIP Conference Proceedings   847 442-444   2006
Simulations of Coevolving Galaxies and Supermassive Black Holes
SpringerMapping the Galaxy and Nearby Galaxies, Astrophysics and Space Science Proceedings   367   2008
Tidal Disruption of Dark Matter Halos Around Proto-globular Cluster
SpringerMapping the Galaxy and Nearby Galaxies, Astrophysics and Space Science Proceedings   373   2008
Galaxy Formation
Astronomical Society of the PacificNew Horizons in Astronomy: Frank N. Bash Symposium 2007 ASP Conference Series, Vol. 393, proceedings of the conference held 14-16 October 2007 at the University of Texas, Austin, Texas, USA. Edited by Anna Frebel, Jus・・・   111-125   2008
Astronomical Society of the PacificNew Horizons in Astronomy: Frank N. Bash Symposium 2007 ASP Conference Series, Vol. 393, proceedings of the conference held 14-16 October 2007 at the University of Texas, Austin, Texas, USA. Edited by Anna Frebel...
Chemical Abundance Patterns in the Local Dwarf Galaxies in the CDM Universe
Astronomical Society of the PacificPanoramic Views of Galaxy Formation and Evolution ASP Conference Series, Vol. 399, proceedings of the conference held 11-16 December, 2007, at Shonan Village Center, Hayama, Japan. Edited by Tadayuki Kodama, Toru Yama・・・   475   2008
Astronomical Society of the PacificPanoramic Views of Galaxy Formation and Evolution ASP Conference Series, Vol. 399, proceedings of the conference held 11-16 December, 2007, at Shonan Village Center, Hayama, Japan. Edited by Tadayuki Kodama, Toru...
American Institute of PhysicsHUNTING FOR THE DARK: THE HIDDEN SIDE OF GALAXY FORMATION. Edited by Victor P. Debattista and Cristina C. Popescu AIP Conference Proceedings, Volume 1240   1240 399-402   2010
Cambridge University PressComputational Star Formation, Proceedings of the International Astronomical Union, IAU Symposium   270 483-486   2011

Research Grants & Projects

 
Galaxy Formation