Masakazu Kobayashi

Profile Information

Affiliation: 准教授, 自然科学系分野, 呉工業高等専門学校

Degree: Ph.D. (Science)(Kyoto University)

J-GLOBAL ID: 201601004392142435
researchmap Member ID: B000254131

Research Interests

Research Areas

Research History

Apr, 2021 - Present

Visiting Professor, KOSEN-KMITL, King Mongkut's Institute of Technology Ladkrabang
Mar, 2021 - Present

Associate Professor / Vice Director on International Affairs, Head Office, Institute of National Colleges of Technology, Japan
Apr, 2016 - Mar, 2021

Associate Professor, Division of Natural Science, National Institute of Technology, Kure College
Oct, 2012 - Mar, 2016

Researcher, Research Center for Space and Cosmic Evolution, Ehime University
Apr, 2012 - Sep, 2012

Researcher, Astronomy Data Center, National Astronomical Observatory of Japan
Apr, 2009 - Mar, 2012

Part-time Lecturer (Earth Science Experiment), Department of Astronomy and Earth Sciences, Tokyo Gakugei University
Apr, 2009 - Mar, 2012

JSPS Research Fellowship for Young Scientists (PD), Division of Optical and Infrared Astronomy, National Astronomical Observatory of Japan
Apr, 2008 - Mar, 2009

Researcher, Division of Optical and Infrared Astronomy, National Astronomical Observatory of Japan
Apr, 2006 - Mar, 2008

JSPS Research Fellowship for Young Scientists (DC2), Department of Astronomy, Kyoto University
Apr, 2005 - Mar, 2006

Part-time Lecturer (Space Science), Kyoto Computer Gakuin

Education

Apr, 2005 - Mar, 2008

Department of Astronomy, Ph.D Course, Graduate School of Science, Kyoto University
Apr, 2003 - Mar, 2005

Department of Astronomy, Master Course, Graduate School of Science, Kyoto University
Apr, 1999 - Mar, 2003

Faculty of Science, Kyoto University

Papers

Uchuu–ν2GC galaxies and AGN: cosmic variance forecasts of high-redshift AGN for JWST, Euclid, and LSST

Taira Oogi, Tomoaki Ishiyama, Francisco Prada, Manodeep Sinha, Darren Croton, Sofía A Cora, Eric Jullo, Anatoly A Klypin, Masahiro Nagashima, J López Cacheiro …

Monthly Notices of the Royal Astronomical Society, 525(3) 3879-3895, Sep 1, 2023
SILVERRUSH X: Machine Learning-aided Selection of 9318 LAEs at z = 2.2, 3.3, 4.9, 5.7, 6.6, and 7.0 from the HSC SSP and CHORUS Survey Data

Yoshiaki Ono, Ryohei Itoh, Takatoshi Shibuya, Masami Ouchi, Yuichi Harikane, Satoshi Yamanaka, Akio K. Inoue, Toshiyuki Amagasa, Daichi Miura, Maiki Okura …

The Astrophysical Journal, 911(2) id.78-78, Apr 1, 2021 Peer-reviewed
The Faint End of the Quasar Luminosity Function at z ∼ 5 from the Subaru Hyper Suprime-Cam Survey

Mana Niida, Tohru Nagao, Hiroyuki Ikeda, Masayuki Akiyama, Yoshiki Matsuoka, Wanqiu He, Kenta Matsuoka, Yoshiki Toba, Masafusa Onoue, Masakazu A. R. Kobayashi …

The Astrophysical Journal, 904(2) 89-89, Nov 24, 2020
Quantifying the Effect of Field Variance on the Hα Luminosity Function with the New Numerical Galaxy Catalog (ν 2GC)

Kazuyuki Ogura, Masahiro Nagashima, Rhythm Shimakawa, Masao Hayashi, Masakazu A. R. Kobayashi, Taira Oogi, Tomoaki Ishiyama, Yusei Koyama, Ryu Makiya, Katsuya Okoshi …

The Astrophysical Journal, 895(1) 9-9, May 19, 2020 Peer-reviewed
ALMA band 8 observations of DLA 2233+131 at z = 3.150

Kazuyuki Ogura, Hideki Umehata, Yoshiaki Taniguchi, Yuichi Matsuda, Nobunari Kashikawa, Kartik Sheth, Katsuhiro Murata, Masaru Kajisawa, Masakazu A R Kobayashi, Takashi Murayama …

Publications of the Astronomical Society of Japan, 72(2), Apr 1, 2020 Peer-reviewed
Investigating the early phase of the galaxy evolution through high-z damped Lyα absorption systems

Kazuyuki Ogura, Tohru Nagao, Masatoshi Imanishi, Nobunari Kashikawa, Yoshiaki Taniguchi, Masaru Kajisawa, Masakazu A. R. Kobayashi, Yoshiki Toba

Proceedings of the International Astronomical Union, 15(S341) 294-296, Nov, 2019 Peer-reviewed
CHORUS. III. Photometric and Spectroscopic Properties of Ly$α$ Blobs at $z=4.9-7.0$

Zhang} Haibin, Ouchi} Masami, Itoh} Ryohei, Shibuya} Takatoshi, Ono} Yoshiaki, Harikane} Yuichi, Inoue, Akio K, Rauch} Michael, Kikuchihara} Shotaro …

arXiv e-prints, arXiv:1905.09841, 2019 Peer-reviewed
Evolution of dwarf galaxies in a semi-analytic galaxy formation model

Masahiro Nagashima, Motohiro Enoki, Tomoaki Ishiyama, Masakazu A. R. Kobayashi, Ryu Makiya, Kazuyuki Ogura, Takashi Okamoto, Katsuya Okoshi, Taira Oogi, Hikari Shirakata

Proceedings of the International Astronomical Union, 14(S344) 491-494, Aug, 2018 Peer-reviewed
SILVERRUSH. II. First catalogs and properties of ∼2000 Lyα emitters and blobs at z ∼ 6-7 identified over the 14-21 deg2 sky

Takatoshi Shibuya, Masami Ouchi, Akira Konno, Ryo Higuchi, Yuichi Harikane, Yoshiaki Ono, Kazuhiro Shimasaku, Yoshiaki Taniguchi, Masakazu A. R Kobayashi, Masaru Kajisawa …

Publications of the Astronomical Society of Japan, 70 S14, Jan 1, 2018 Peer-reviewed
SILVERRUSH. III. Deep optical and near-infrared spectroscopy for Lyα and UV-nebular lines of bright Lyα emitters at z = 6-7

Takatoshi Shibuya, Masami Ouchi, Yuichi Harikane, Michael Rauch, Yoshiaki Ono, Shiro Mukae, Ryo Higuchi, Takashi Kojima, Suraphong Yuma, Chien-Hsiu Lee …

Publications of the Astronomical Society of Japan, 70 S15, Jan 1, 2018 Peer-reviewed
SILVERRUSH. IV. Lyα luminosity functions at z = 5.7 and 6.6 studied with ∼1300 Lyα emitters on the 14-21 deg2 sky

Akira Konno, Masami Ouchi, Takatoshi Shibuya, Yoshiaki Ono, Kazuhiro Shimasaku, Yoshiaki Taniguchi, Tohru Nagao, Masakazu A.R. Kobayashi, Masaru Kajisawa, Nobunari Kashikawa …

Publications of the Astronomical Society of Japan, 70(SP1) id.S16, Jan 1, 2018 Peer-reviewed
Systematic Identification of LAEs for Visible Exploration and Reionization Research Using Subaru HSC (SILVERRUSH). I. Program strategy and clustering properties of ∼2000 Lyα emitters at z = 6-7 over the 0.3-0.5 Gpc2 survey area

Masami Ouchi, Yuichi Harikane, Takatoshi Shibuya, Kazuhiro Shimasaku, Yoshiaki Taniguchi, Akira Konno, Masakazu Kobayashi, Masaru Kajisawa, Tohru Nagao, Yoshiaki Ono …

Publications of the Astronomical Society of Japan, 70, Jan 1, 2018 Peer-reviewed
Theoretical Re-evaluations of Scaling Relations between SMBHs and Their Host Galaxies—1. Effect of Seed BH Mass

Hikari Shirakata, Toshihiro Kawaguchi, Takashi Okamoto, Ryu Makiya, Tomoaki Ishiyama, Yoshiki Matsuoka, Masahiro Nagashima, Motohiro Enoki, Taira Oogi, Masakazu A. R. Kobayashi

Frontiers in Astronomy and Space Sciences, 4, Sep 21, 2017
A New Constraint on Reionization from the Evolution of the Ly alpha Luminosity Function at z similar to 6-7 Probed by a Deep Census of z=7.0 Ly alpha Emitter Candidates to 0.3L

Kazuaki Ota, Masanori Iye, Nobunari Kashikawa, Akira Konno, Fumiaki Nakata, Tomonori Totani, Masakazu A. R. Kobayashi, Yoshinobu Fudamoto, Akifumi Seko, Jun Toshikawa …

ASTROPHYSICAL JOURNAL, 844(1) 85, Jul, 2017 Peer-reviewed
A search for Ly alpha emitters around a concentrated region of strong Ly alpha absorbers at z=2.3

Kazuyuki Ogura, Tohru Nagao, Masatoshi Imanishi, Nobunari Kashikawa, Yoshiaki Taniguchi, Masaru Kajisawa, Masakazu A. R. Kobayashi, Yoshiki Toba, Kodai Nobuhara

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 69(3) 51, Jun, 2017 Peer-reviewed
A New Constraint on Reionization by a Census of $z=7.0$ Ly$α$ Emitters with a Deep and Large Sample to 0.3 $L^*$: Evolution of Ly$α$ Luminosity Function and Equivalent Width at $z\sim6-7$

Kazuaki Ota, Masanori Iye, Nobunari Kashikawa, Akira Konno, Fumiaki Nakata, Tomonori Totani, Masakazu A, R. Kobayashi, Yoshinobu Fudamoto, Akifumi Seko …

Mar 8, 2017
REVISITING THE COMPLETENESS AND LUMINOSITY FUNCTION IN HIGH-REDSHIFT LOW-LUMINOSITY QUASAR SURVEYS

Mana Niida, Tohru Nagao, Hiroyuki Ikeda, Kenta Matsuoka, Masakazu A. R. Kobayashi, Yoshiki Toba, Yoshiaki Taniguchi

ASTROPHYSICAL JOURNAL, 832(2) 208, Dec, 2016 Peer-reviewed
Theoretical re-evaluations of the black hole mass-bulge mass relation - I. Effect of seed black hole mass

Hikari Shirakata, Toshihiro Kawaguchi, Takashi Okamoto, Ryu Makiya, Tomoaki Ishiyama, Yoshiki Matsuoka, Masahiro Nagashima, Motohiro Enoki, Taira Oogi, Masakazu A. R. Kobayashi

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 461(4) 4389-4394, Oct, 2016 Peer-reviewed
A NEW CONSTRAINT ON THE Ly alpha FRACTION OF UV VERY BRIGHT GALAXIES AT REDSHIFT 7

Hisanori Furusawa, Nobunari Kashikawa, Masakazu A. R. Kobayashi, James S. Dunlop, Kazuhiro Shimasaku, Tadafumi Takata, Kazuhiro Sekiguchi, Yoshiaki Naito, Junko Furusawa, Masami Ouchi …

ASTROPHYSICAL JOURNAL, 822(1) 46, May, 2016 Peer-reviewed
The New Numerical Galaxy Catalog (v(2)GC): An updated semi-analytic model of galaxy and active galactic nucleus formation with large cosmological N-body simulations

Ryu Makiya, Motohiro Enoki, Tomoaki Ishiyama, Masakazu A. R. Kobayashi, Masahiro Nagashima, Takashi Okamoto, Katsuya Okoshi, Taira Oogi, Hikari Shirakata

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 68(2) 25, Apr, 2016 Peer-reviewed

Misc.

The New Numerical Galaxy Catalogue (ν^2 GC): Properties of Active Galactic Nuclei and Their Host Galaxies

Hikari Shirakata, Takashi Okamoto, Toshihiro Kawaguchi, Masahiro Nagashima, Tomoaki Ishiyama, Ryu Makiya, Masakazu A, R. Kobayashi, Motohiro Enoki, Taira Oogi …

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 482(4) 4846-4873, Feb 7, 2018
Imprints of the super-Eddington accretion on the quasar clustering

Taira Oogi, Motohiro Enoki, Tomoaki Ishiyama, Masakazu A. R. Kobayashi, Ryu Makiya, Masahiro Nagashima, Takashi Okamoto, Hikari Shirakata

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 471(1) L21-L25, Oct, 2017
VizieR Online Data Catalog: New Numerical Galaxy Catalog (ν^2GC)

Ryu Makiya, Motohiro Enoki, Tomoaki Ishiyama, Masakazu A.R. Kobayashi, Masahiro Nagashima, Takashi Okamoto, Katsuya Okoshi, Taira Oogi, Hikari Shirakata

VizieR Online Data Catalog, Oct, 2016
The quasar clustering and its evolution in a semi-analytic model based on ultra high-resolution N-body simulations

Oogi, Taira, Enoki, Motohiro, Ishiyama, Tomoaki, Kobayashi, Masakazu A. R, Makiya, Ryu, Nagashima, Masahiro

Galaxies at High Redshift and Their Evolution Over Cosmic Time, IAU Symposium, 319 61-61, 2016
The quasar clustering and its evolution in a semi-analytic model based on ultra high-resolution N-body simulations

Oogi, Taira, Enoki, Motohiro, Ishiyama, Tomoaki, Kobayashi, Masakazu, Makiya, Ryu, Nagashima, Masahiro

IAU General Assembly, Meeting #29, Aug, 2015
Cosmological Galaxy Formation Model with New Dust SED Model

Ryu Makiya, Tomonori Totani, Masahiro Nagashima, Masakazu A. R. Kobayashi, Tsutomu T. Takeuchi

REVOLUTION IN ASTRONOMY WITH ALMA: THE THIRD YEAR, 499 35-36, 2015
Extragalactic Background Light up to the Epoch of Cosmic Reionization

Inoue, Yoshiyuki, Inoue, S, Kobayashi, M. A, Makiya, R, Niino, Y, Totani, T, Tanaka, Y

American Astronomical Society, HEAD meeting #13, Apr, 2013
WISH for deep and wide NIR surveys

Toru Yamada, Ikuru Iwata, Makiko Ando, Mamoru Doi, Tomotsugu Goto, Yuji Ikeda, Masatoshi Imanishi, Akio K. Inoue, Satoru Iwamura, Nobuyuki Kawai …

SPACE TELESCOPES AND INSTRUMENTATION 2012: OPTICAL, INFRARED, AND MILLIMETER WAVE, 8442 84421A, 2012
Searching for the most distant blazars with the Fermi Gamma-ray Space Telescope

Inoue, Y, Inoue, S, Kobayashi, M. A. R, Totani, T, Kataoka, J, Sato, R

Proceedings of the 25th Texas Symposium on Relativistic Astrophysics. December 6-10, 2010. Heidelberg, Germany. Editors: Frank M. Rieger (Chair), Christopher van Eldik and Werner Hofmann., 2010
Luminosity Distribution of Gamma-Ray Burst Host Galaxies at Redshift=1 in Cosmological Simulation

Y. Niino, J. -H. Choi, M. A. R. Kobayashi, K. Nagamine, T. Totani, B. Zhang

DECIPHERING THE ANCIENT UNIVERSE WITH GAMMA-RAY BURSTS, 1279 231-+, 2010
WISH: Wide-field Imaging Surveyor for High-redshift

Toru Yamada, Mamoru Doi, Tomotsugu Goto, Yuji Ikeda, Masatoshi Imanishi, Akio Inoue, Satoru Iwamura, Ikuru Iwata, Nobuyuki Kawai, Masakazu A. R. Kobayashi …

SPACE TELESCOPES AND INSTRUMENTATION 2010: OPTICAL, INFRARED, AND MILLIMETER WAVE, 7731 77311Q, 2010
Metallicity of Gamma-Ray Burst Progenitors: Connection between Star Formation and Gamma-Ray Burst Production

Y. Niino, J-H. Choi, M. A. R. Kobayashi, K. Nagamine, T. Totani, B. Zhang

10TH INTERNATIONAL SYMPOSIUM ON ORIGIN OF MATTER AND EVOLUTION OF GALAXIES, 1269 345-+, 2010
Luminosity Distribution of Gamma-Ray Burst Host Galaxies at Redshift=1 in Cosmological Simulation

Y. Niino, J. -H. Choi, M. A. R. Kobayashi, K. Nagamine, T. Totani, B. Zhang

DECIPHERING THE ANCIENT UNIVERSE WITH GAMMA-RAY BURSTS, 1279 231-+, 2010
The Cosmological Evolution of Blazars and the Extragalactic Gamma-Ray Background in the Fermi Era

Yoshiyuki Inoue, Tomonori Totani, Susumu Inoue, Masakazu A, R. Kobayashi, Jun Kataoka, Rie Sato

2009 Fermi Symposium, Washington, D.C., Nov. 2-5, eConf Proceedings C091122, Dec, 2009
Ly alpha Emission of Long GRB Host Galaxies at High Redshift and the Metallicity Dependence of Long GRB Production

Yuu Niino, Tomonori Totani, Masakazu A. R. Kobayashi

GAMMA-RAY BUSTS, 1133 273-+, 2009
Unveiling the physical properties of Lyman alpha emitters - constructing a theoretical model in the hierarchically clustering galaxy formation

Masakazu Kobayashi

The Astronomical Herald, 101(2) 83-91, Feb, 2008
Lyman-Alpha Emitters in the Hierarchically Clustering Galaxy Formation

Masakazu A. R. Kobayashi, Tomonori Totani, Masahiro Nagashima

PANORAMIC VIEWS OF GALAXY FORMATION AND EVOLUTION, PROCEEDINGS, 399 32-36, 2008

Teaching Experience

Apr, 2020 - Present

Physics III/IV (Kure National College of Technology)
Apr, 2019 - Present

Physics I/II (Kure National College of Technology)
Apr, 2016 - Mar, 2020

Fumdamental Mathematics B (Kure National College of Technology)
Apr, 2018 - Oct, 2019

Mathematics for Engeneering II (Kure National College of Technology)
Apr, 2018 - Mar, 2019

Fumdamental Mathematics AI/AII (Kure National College of Technology)
Apr, 2017 - Mar, 2018

Calculus II (Kure National College of Technology)
Sep, 2016 - Mar, 2017

Differential Equation (Kure National College of Technology)
Apr, 2016 - Mar, 2017

Calculus I (Kure National College of Technology)
Apr, 2009 - Apr, 2012

Earth Science Experiment (Astronomy Part) (Tokyo Gakugei University)
Apr, 2005 - Mar, 2006

Astronomical Science (Kyoto Computer Gakuin)

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