Ishikawa Shogo

Department of Liberal Arts and Basic SciencesAssistant Professor

Degree

  • Ph.D, The Graduate University for Advanced Studies, Mar. 2017

Research Keyword

  • 観測的宇宙論
  • ダークエネルギー
  • ダークマター
  • 宇宙の大規模構造

Field Of Study

  • Natural sciences, Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
  • Natural sciences, Astronomy

Career

  • Apr. 2024 - Present
    Nihon University, College of Industrial Technology Department of Liberal Arts and Basic Sciences, Assistant Professor
  • Apr. 2022 - Mar. 2024
    Kyoto University, Yukawa Institute for Theoretical Physics, Research assistant professor
  • Apr. 2018 - Mar. 2022
    National Astronomical Observatory of Japan, Center for Computational Astrophysics, 特任研究員
  • Oct. 2017 - Mar. 2018
    Kindai University, Faculty of Science and Engineering Department of Science, 博士研究員
  • Apr. 2017 - Sep. 2017
    National Astronomical Observatory of Japan, Center for Computational Astrophysics, 研究支援員

Educational Background

  • Apr. 2012 - Mar. 2017
    The Graduate University for Advanced Studies (SOKENDAI), School of Physical Sciences, Department of Astronomical Science

Paper

  • Mock Observatory: Two thousand light-cone mock catalogues of luminous red galaxies from the Hyper Suprime-Cam Survey for the cosmological large-scale analysis
    Shogo Ishikawa; Teppei Okumura; Takahiro Nishimichi
    Monthly Notices of the Royal Astronomical Society, Mar. 2024, Refereed
    Lead
  • Galaxy-dark matter connection of photometric galaxies from the HSC-SSP Survey: Galaxy-galaxy lensing and the halo model
    Navin Chaurasiya; Surhud More; Shogo Ishikawa; Shogo Masaki; Daichi Kashino; Teppei Okumura
    Jul. 2023
  • Subhalo abundance matching using progenitor mass at varying redshift: Two modes of stellar mass growth imprinted into the Subaru HSC galaxy clustering
    Shogo Masaki; Daichi Kashino; Shogo Ishikawa; Yen-Ting Lin
    Monthly Notices of the Royal Astronomical Society, Jun. 2023
  • A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). VII. Redshift Evolution of Radio Galaxy Environments at z=0.3-1.4
    Hisakazu Uchiyama; Takuji Yamashita; Tohru Nagao; Kohei Ichikawa; Yoshiki Toba; Shogo Ishikawa; Mariko Kubo; Masaru Kajisawa; Toshihiro Kawaguchi; Nozomu Kawakatu; Chien-Hsiu Lee; Akatoki Noboriguchi
    ASTROPHYSICAL JOURNAL, Jul. 2022
  • Halo-model Analysis of the Clustering of Photometric Luminous Red Galaxies at 0.10 ≤ z ≤1.05 from the Subaru Hyper Suprime-Cam Survey
    Shogo Ishikawa; Teppei Okumura; Masamune Oguri; Sheng-Chieh Lin
    The Astrophysical Journal, Nov. 2021, Refereed
    Lead
  • The Subaru HSC Galaxy Clustering with Photometric Redshift. I. Dark Halo Masses versus Baryonic Properties of Galaxies at 0.3 <= z <= 1.4
    Shogo Ishikawa; Nobunari Kashikawa; Masayuki Tanaka; Jean Coupon; Alexie Leauthaud; Jun Toshikawa; Kohei Ichikawa; Taira Oogi; Hisakazu Uchiyama; Yuu Niino; Atsushi J. Nishizawa
    ASTROPHYSICAL JOURNAL, Dec. 2020, Refereed
    Lead
  • Faint Quasars Live in the Same Number Density Environments as Lyman Break Galaxies at z similar to 4
    Hisakazu Uchiyama; Masayuki Akiyama; Jun Toshikawa; Nobunari Kashikawa; Roderik Overzier; Tohru Nagao; Kohei Ichikawa; Murilo Marinello; Masatoshi Imanishi; Masayuki Tanaka; Yoshiki Matsuoka; Yutaka Komiyama; Shogo Ishikawa; Masafusa Onoue; Mariko Kubo; Yuichi Harikane; Kei Ito; Shigeru Namiki; Yongming Liang
    ASTROPHYSICAL JOURNAL, Dec. 2020
  • Discovery of Protoclusters at z similar to 3.7 and 4.9: Embedded in Primordial Superclusters
    Jun Toshikawa; Matthew A. Malkan; Nobunari Kashikawa; Roderik Overzier; Hisakazu Uchiyama; Kazuaki Ota; Shogo Ishikawa; Kei Ito
    ASTROPHYSICAL JOURNAL, Jan. 2020
  • The Brightest UV-selected Galaxies in Protoclusters at z similar to 4: Ancestors of Brightest Cluster Galaxies?
    Kei Ito; Nobunari Kashikawa; Jun Toshikawa; Roderik Overzier; Masayuki Tanaka; Mariko Kubo; Takatoshi Shibuya; Shogo Ishikawa; Masafusa Onoue; Hisakazu Uchiyama; Yongming Liang; Ryo Higuchi; Crystal Martin; Chien-Hsiu Lee; Yutaka Komiyama; Song Huang
    ASTROPHYSICAL JOURNAL, Jun. 2019
  • The brightest UV-selected galaxies in protoclusters at $z\sim4$: Ancestors of Brightest Cluster Galaxies?
    Kei Ito; Nobunari Kashikawa; Jun Toshikawa; Roderik Overzier; Masayuki Tanaka; Mariko Kubo; Takatoshi Shibuya; Shogo Ishikawa; Masafusa Onoue; Hisakazu Uchiyama; Yongming Liang; Ryo Higuchi; Crystal Martin; Chien-Hsiu Lee; Yutaka Komiyama; Song Huang
    The Astrophysical Journal, Apr. 2019, Refereed, Not invited
  • Suppression of Low-mass Galaxy Formation around Quasars at z similar to 2-3
    Hisakazu Uchiyama; Nobunari Kashikawa; Roderik Overzier; Jun Toshikawa; Masafusa Onoue; Shogo Ishikawa; Mariko Kubo; Kei Ito; Shigeru Namiki; Yongming Liang
    ASTROPHYSICAL JOURNAL, Jan. 2019
  • GOLDRUSH. III. A systematic search for protoclusters at z similar to 4 based on the > 100 deg(2) area
    Jun Toshikawa; Hisakazu Uchiyama; Nobunari Kashikawa; Masami Ouchi; Roderik Overzier; Yoshiaki Ono; Yuichi Harikane; Shogo Ishikawa; Tadayuki Kodama; Yuichi Matsuda; Yen-Ting Lin; Masafusa Onoue; Masayuki Tanaka; Tohru Nagao; Masayuki Akiyama; Yutaka Komiyama; Tomotsugu Goto; Chien-Hsiu Lee
    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Jan. 2018
  • Luminous quasars do not live in the most overdense regions of galaxies at z similar to 4
    Hisakazu Uchiyama; Jun Toshikawa; Nobunari Kashikawa; Roderik Overzier; Yi-Kuan Chiang; Murilo Marinello; Masayuki Tanaka; Yuu Niino; Shogo Ishikawa; Masafusa Onoue; Kohei Ichikawa; Masayuki Akiyama; Jean Coupon; Yuichi Harikane; Masatoshi Imanishi; Tadayuki Kodama; Yutaka Komiyama; Chien-Hsiu Lee; Yen-Ting Lin; Satoshi Miyazaki; Tohru Nagao; Atsushi J. Nishizawa; Yoshiaki Ono; Masami Ouchi; Shiang-Yu Wang
    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Jan. 2018
  • Lyman-break Galaxies at z similar to 3 in the Subaru Deep Field: Luminosity Function,Clustering, and [OIII] Emission
    Matthew A. Malkan; Daniel P. Cohen; Miyoko Maruyama; Nobunari Kashikawa; Chun Ly; Shogo Ishikawa; Kazuhiro Shimasaku; Masao Hayashi; Kentaro Motohara
    ASTROPHYSICAL JOURNAL, Nov. 2017
  • Minor Contribution of Quasars to Ionizing Photon Budget at z similar to 6: Update on Quasar Luminosity Function at the Faint End with Subaru/Suprime-Cam
    Masafusa Onoue; Nobunari Kashikawa; Chris J. Willott; Pascale Hibon; Myungshin Im; Hisanori Furusawa; Yuichi Harikane; Masatoshi Imanishi; Shogo Ishikawa; Satoshi Kikuta; Yoshiki Matsuoka; Tohru Nagao; Yuu Niino; Yoshiaki Ono; Masami Ouchi; Masayuki Tanaka; Ji-Jia Tang; Jun Toshikawa; Hisakazu Uchiyama
    ASTROPHYSICAL JOURNAL LETTERS, Oct. 2017
  • The Galaxy-Halo Connection in High-redshift Universe: Details and Evolution of Stellar-to-halo Mass Ratios of Lyman Break Galaxies on CFHTLS Deep Fields
    Shogo Ishikawa; Nobunari Kashikawa; Jun Toshikawa; Masayuki Tanaka; Takashi Hamana; Yuu Niino; Kohei Ichikawa; Hisakazu Uchiyama
    ASTROPHYSICAL JOURNAL, May 2017, Refereed
    Lead
  • The redshift-selected sample of long gamma-ray burst host galaxies: The overall metallicity distribution at z < 0.4
    Yuu Niino; Kentaro Aoki; Tetsuya Hashimoto; Takashi Hattori; Shogo Ishikawa; Nobunari Kashikawa; George Kosugi; Masafusa Onoue; Jun Toshikawa; Kiyoto Yabe
    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Apr. 2017
  • A SYSTEMATIC SURVEY OF PROTOCLUSTERS AT z similar to 3-6 IN THE CFHTLS DEEP FIELDS
    Jun Toshikawa; Nobunari Kashikawa; Roderik Overzier; Matthew A. Malkan; Hisanori Furusawa; Shogo Ishikawa; Masafusa Onoue; Kazuaki Ota; Masayuki Tanaka; Yuu Niino; Hisakazu Uchiyama
    ASTROPHYSICAL JOURNAL, Aug. 2016
  • The very wide-field gzK Galaxy Survey - II. The relationship between star-forming galaxies at z similar to 2 and their host haloes based upon HOD modelling
    Shogo Ishikawa; Nobunari Kashikawa; Takashi Hamana; Jun Toshikawa; Masafusa Onoue
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, May 2016, Refereed
    Lead
  • The very wide-field gzK galaxy survey - I. Details of the clustering properties of star-forming galaxies at z similar to 2
    Shogo Ishikawa; Nobunari Kashikawa; Jun Toshikawa; Masafusa Onoue
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Nov. 2015, Refereed
    Lead
  • THE SUBARU HIGH-z QUASAR SURVEY: DISCOVERY OF FAINT z similar to 6 QUASARS
    Nobunari Kashikawa; Yoshifumi Ishizaki; Chris J. Willott; Masafusa Onoue; Myungshin Im; Hisanori Furusawa; Jun Toshikawa; Shogo Ishikawa; Yuu Niino; Kazuhiro Shimasaku; Masami Ouchi; Pascale Hibon
    ASTROPHYSICAL JOURNAL, Jan. 2015
  • The Subaru high-z quasar survey: discovery of faint z~6 quasars
    Nobunari Kashikawa; Yoshifumi Ishizaki; Chris J. Willott; Masafusa Onoue; Myungshin Im; Hisanori Furusawa; Jun Toshikawa; Shogo Ishikawa; Yuu Niino; Kazuhiro Shimasaku; Masami Ouchi; Pascale Hibon
    The Astrophysical Journal, Oct. 2014, Refereed, Not invited
  • A FIRST SITE OF GALAXY CLUSTER FORMATION: COMPLETE SPECTROSCOPY OF A PROTOCLUSTER AT z=6.01
    Jun Toshikawa; Nobunari Kashikawa; Roderik Overzier; Takatoshi Shibuya; Shogo Ishikawa; Kazuaki Ota; Kazuhiro Shimasaku; Masayuki Tanaka; Masao Hayashi; Yuu Niino; Masafusa Onoue
    ASTROPHYSICAL JOURNAL, Sep. 2014
  • EXTENDED Ly alpha EMISSION FROM A DAMPED Ly alpha ABSORBER AT z=3.115
    Nobunari Kashikawa; Toru Misawa; Yosuke Minowa; Katsuya Okoshi; Takashi Hattori; Jun Toshikawa; Shogo Ishikawa; Masafusa Onoue
    ASTROPHYSICAL JOURNAL, Jan. 2014

MISC

  • Galaxy-dark matter connection from weak lensing in imaging surveys: Impact of photometric redshift errors
    Navin Chaurasiya; Surhud More; Daichi Kashino; Shogo Masaki; Shogo Ishikawa
    09 Aug. 2024

Courses

  • Basis for the computational science
    Apr. 2024 - Present
    Nihon University
  • Information literacy
    Apr. 2024 - Present
    Nihon University

Affiliated academic society

  • Dec. 2022 - Present
    理論天文学宇宙物理学懇談会
  • May 2015 - Present
    日本天文学会

Research Themes

  • 高赤方偏移宇宙におけるバリオン音響振動によるダークエネルギーの起源と性質の解明
    日本学術振興会, 科学研究費助成事業 若手研究, Apr. 2023 - Mar. 2027
    石川 将吾
  • Towards the Public Release of Multiple Full-Sky Lightcone Mock Catalogues for Upcoming Extensive Galaxy Surveys
    Kayamori Foundation of Informational Science Advancement, 公益財団法人 栢森情報科学振興財団 研究助成事業, Dec. 2023 - Dec. 2025
    石川将吾
  • Hyper Suprime-Camサーベイで迫るダークエネルギーの正体
    京都大学, 研究費獲得支援事業【いしずえ】〜Step-up〜, Apr. 2022 - Mar. 2023
  • Observational Constraint on the Structure Formation of the Universe Revealed by Subaru Telescope
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Research Activity Start-up, Aug. 2017 - Mar. 2019
    Ishikawa Shogo