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Full understanding of galaxy overdense regions in the distant universe

Research Project

Project/Area Number 21H04490
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 16:Astronomy and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Kashikawa Nobunari  東京大学, 大学院理学系研究科(理学部), 教授 (00290883)

Co-Investigator(Kenkyū-buntansha) 内山 久和  国立天文台, 天文データセンター, 特任研究員 (30869417)
服部 尭  国立天文台, ハワイ観測所, RCUH職員 (40450192)
久保 真理子  東北大学, 理学研究科, 助教 (40743216)
百瀬 莉恵子  東京大学, 大学院理学系研究科(理学部), 客員共同研究員 (70631290)
利川 潤  東京大学, 宇宙線研究所, 特別研究員 (90760778)
Project Period (FY) 2021-04-05 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥30,680,000 (Direct Cost: ¥23,600,000、Indirect Cost: ¥7,080,000)
Fiscal Year 2023: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2022: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2021: ¥15,340,000 (Direct Cost: ¥11,800,000、Indirect Cost: ¥3,540,000)
Keywords銀河 / 原始銀河団 / 宇宙の大規模構造 / 銀河形成 / 銀河進化
Outline of Research at the Start

本研究では、すばる望遠鏡の大集光力と広視野撮像機能を駆使した系統的かつ独創的な手
法によって、100億光年以遠にある原始銀河団を多数発見し、1)銀河進化における環境効果の発現時期とその物理的メカニズム、および多様性、進化、2)銀河密集領域と中心銀河、活動銀河活動性との関係、3)銀河密集領域における塵(ダスト)に覆われた星形成活動、4)銀河密度と中性水素密度の関係、について集中的な研究を行い、遠方宇宙における銀河密集領域を徹底解明する。これにより、銀河進化の上で環境がどのような役割を果たしたのかを包括的に理解する。

Outline of Final Research Achievements

A large sample of 111 distant protoclusters at z=3-5 was obtained from the 25 sqdeg of HSC-SSP area. We found an excess in the bright-end of the UV-luminosity function of protocluster members compared with the field. We find that galaxy density is high around radio-galaxies with low radio-luminosity, and that the density decreases with increasing radio luminosity in proportion to the age of the galaxies. We succeeded for the first time in the world in measuring the dark halo mass of z~6 quasars and showed that its mass is nearly constant with cosmic time. We also found that Lyman-α galaxies are difficult to observe in regions of dense intergalactic neutral intergalactic gas. We also investigated the relationship between reionization and the environment. We have published 30 peer-reviewed papers during the research period.

Academic Significance and Societal Importance of the Research Achievements

HSC-SSPという広域かつ均質なサーベイデータから、遠方原始銀河団のサンプルを構築することはサーベイチームの責務であり、その意味でHSC-SSPにしかできない独創性のある研究ができたことは意義深い。また広域的な深探査のおかげでクェーサーの高い個数密度が得られ、z~6クェーサーのダークハロー質量の世界初の測定に結び付いた。銀河形成、銀河進化、AGNの発現、ブラックホールの成長、中性水素ガス分布、再電離と幅広いトピックスについて「環境」という1つの軸で多角的な研究が展開できた。研究期間内に3本のプレスリリースを行い、広く社会に成果を公表し、数多くのメディアで取り上げられた。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Comments on the Screening Results   Annual Research Report
  • Research Products

    (77 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (14 results) Journal Article (27 results) (of which Int'l Joint Research: 27 results,  Peer Reviewed: 27 results,  Open Access: 27 results) Presentation (32 results) (of which Int'l Joint Research: 19 results) Remarks (4 results)

  • [Int'l Joint Research] ブラジル国立天文台(ブラジル)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] プリンストン大学/アリゾナ大学/カルフォルニア大学(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] バルセロナ大学(スペイン)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] バース大学/ブリストル大学/ノッティンガム大学(英国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] セントマリー大学(カナダ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ブラジル国立天文台(ブラジル)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] プリンストン大学(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] バルセロナ大学(スペイン)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] バース大学(英国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ブラジル国立天文台(ブラジル)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] プリンストン大学(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] バルセロナ大学(スペイン)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] バース大学(英国)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Discovery of Merging Twin Quasars at z = 6.052024

    • Author(s)
      Matsuoka Yoshiki、Izumi Takuma、Onoue Masafusa、Strauss Michael A.、Iwasawa Kazushi、Kashikawa Nobunari、Akiyama Masayuki、Aoki Kentaro、Arita Junya、Imanishi Masatoshi、Ishimoto Rikako、Kawaguchi Toshihiro、Kohno Kotaro、Lee Chien-Hsiu、Nagao Tohru、Silverman John D.、Toba Yoshiki
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 965 Issue: 1 Pages: L4-L4

    • DOI

      10.3847/2041-8213/ad35c7

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Black Hole Mass and Eddington-ratio Distributions of Less-luminous Quasars at z ? 4 in the Subaru Hyper Suprime-Cam Wide Field2024

    • Author(s)
      He Wanqiu、Akiyama Masayuki、Enoki Motohiro、Ichikawa Kohei、Inayoshi Kohei、Kashikawa Nobunari、Kawaguchi Toshihiro、Matsuoka Yoshiki、Nagao Tohru、Onoue Masafusa、Oogi Taira、Schulze Andreas、Toba Yoshiki、Ueda Yoshihiro
    • Journal Title

      The Astrophysical Journal

      Volume: 962 Issue: 2 Pages: 152-152

    • DOI

      10.3847/1538-4357/ad1518

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] MAMMOTH-Subaru. III. Lyα Halo Identified by Stacking ?3300 Lyα Emitters at z = 2.2?2.32024

    • Author(s)
      Zhang Haibin、Cai Zheng、Liang Yongming、Ma Ke、Kashikawa Nobunari、Li Mingyu、Wu Yunjing、Li Qiong、Johnson Sean D.、Ouchi Masami、Fan Xiaohui
    • Journal Title

      The Astrophysical Journal

      Volume: 961 Issue: 1 Pages: 63-63

    • DOI

      10.3847/1538-4357/ad07d3

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] MAMMOTH-Subaru. V. Effects of Cosmic Variance on Lyα Luminosity Functions at z = 2.2?2.32024

    • Author(s)
      Ma Ke、Zhang Haibin、Cai Zheng、Liang Yongming、Kashikawa Nobunari、Li Mingyu、Wu Yunjing、Li Qiong、Fan Xiaohui、Johnson Sean D.、Ouchi Masami
    • Journal Title

      The Astrophysical Journal

      Volume: 961 Issue: 1 Pages: 102-102

    • DOI

      10.3847/1538-4357/ad04da

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). XVII. Black Hole Mass Distribution at z ~ 6 Estimated via Spectral Comparison with Low-z Quasars2024

    • Author(s)
      Takahashi Ayumi、Matsuoka Yoshiki、Onoue Masafusa、Strauss Michael A.、Kashikawa Nobunari、Toba Yoshiki、Iwasawa Kazushi、Imanishi Masatoshi、Akiyama Masayuki、Kawaguchi Toshihiro、Noboriguchi Akatoki、Lee Chien-Hsiu
    • Journal Title

      The Astrophysical Journal

      Volume: 960 Issue: 2 Pages: 112-112

    • DOI

      10.3847/1538-4357/ad045e

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] An enhanced abundance of bright galaxies in protocluster candidates at z ? 3?52023

    • Author(s)
      Toshikawa Jun、Wuyts Stijn、Kashikawa Nobunari、Liu Chengze、Sawicki Marcin、Overzier Roderik、Kubo Mariko、Uchiyama Hisakazu、Ito Kei、Bremer Malcolm、Ono Yoshiaki、Kodama Tadayuki、Lin Yen-Ting、Saito Tomoki
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 527 Issue: 3 Pages: 6276-6291

    • DOI

      10.1093/mnras/stad3162

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Detection of stellar light from quasar host galaxies at redshifts above 62023

    • Author(s)
      Ding Xuheng、Onoue Masafusa、Silverman John D.、Matsuoka Yoshiki、Izumi Takuma、Strauss Michael A.、Jahnke Knud、et al. (including Imanishi Masatoshi).
    • Journal Title

      Nature

      Volume: 621 Issue: 7977 Pages: 51-55

    • DOI

      10.1038/s41586-023-06345-5

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] "SILVERRUSH. XIII. A Catalog of 20,567 Lyホア Emitters at z = 2-7 Identified in the Full-depth Data of the Subaru/HSC-SSP and CHORUS Surveys"2023

    • Author(s)
      "Kikuta, Satoshi; Ouchi, Masami; Shibuya, Takatoshi; Liang, Yongming; Umeda, Hiroya; Matsumoto, Akinori; Shimasaku, Kazuhiro; Harikane, Yuichi; Ono, Yoshiaki; Inoue, Akio K.; Yamanaka, Satoshi; Kusakabe, Haruka; Momose, Rieko; Kashikawa, Nobunari; Matsuda, Yuichi; Lee, Chien-Hsiu"
    • Journal Title

      The Astrophysical Journal Supplement Series

      Volume: Volume 268 Issue: 1 Pages: 24-24

    • DOI

      10.3847/1538-4365/ace4cb

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). XVIII. The Dark Matter Halo Mass of Quasars at z ~ 62023

    • Author(s)
      Arita Junya、Kashikawa Nobunari、Matsuoka Yoshiki、He Wanqiu、Ito Kei、Liang Yongming、Ishimoto Rikako、Yoshioka Takehiro、Takeda Yoshihiro、Iwasawa Kazushi、Onoue Masafusa、Toba Yoshiki、Imanishi Masatoshi
    • Journal Title

      The Astrophysical Journal

      Volume: 954 Issue: 2 Pages: 210-210

    • DOI

      10.3847/1538-4357/ace43a

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Quasar Luminosity Function at z = 72023

    • Author(s)
      Matsuoka Yoshiki, Onoue Masafusa, et al.
    • Journal Title

      ApJL

      Volume: 949 Issue: 2 Pages: L42-L42

    • DOI

      10.3847/2041-8213/acd69f

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The SSA22 H i Tomography Survey (SSA22-HIT). I. Data Set and Compiled Redshift Catalog2023

    • Author(s)
      Mawatari Ken、Inoue Akio K.、Yamada Toru、Hayashino Tomoki、Prochaska J. Xavier、Lee Khee-Gan、Tejos Nicolas、Kashikawa Nobunari、Otsuka Takuya、Yamanaka Satoshi、Schlegel David J.、Matsuda Yuichi、Hennawi Joseph F.、Iwata Ikuru、Umehata Hideki、Mukae Shiro、Ouchi Masami、Sugahara Yuma、Tamura Yoichi
    • Journal Title

      The Astronomical Journal

      Volume: 165 Issue: 5 Pages: 208-208

    • DOI

      10.3847/1538-3881/acb707

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] X-ray emission from a rapidly accreting narrow-line Seyfert 1 galaxy at <i>z</i> = 6.562023

    • Author(s)
      Wolf J.、Nandra K.、Salvato M.、Buchner J.、Onoue M.、Liu T.、Arcodia R.、Merloni A.、Ciroi S.、Di Mille F.、Burwitz V.、Brusa M.、Ishimoto R.、Kashikawa N.、Matsuoka Y.、Urrutia T.、Waddell S. G. H.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 669 Pages: A127-A127

    • DOI

      10.1051/0004-6361/202244688

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Updated Measurements of [O iii] 88 μm, [C ii] 158 μm, and Dust Continuum Emission from a z = 7.2 Galaxy2023

    • Author(s)
      Ren Yi W.、Fudamoto Yoshinobu、Inoue Akio K.、Sugahara Yuma、Tokuoka Tsuyoshi、Tamura Yoichi、Matsuo Hiroshi、Kohno Kotaro、Umehata Hideki、Hashimoto Takuya、Bouwens Rychard J.、Smit Renske、Kashikawa Nobunari、Okamoto Takashi、Shibuya Takatoshi、Shimizu Ikkoh
    • Journal Title

      The Astrophysical Journal

      Volume: 945 Issue: 1 Pages: 69-69

    • DOI

      10.3847/1538-4357/acb8ab

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] COSMOS2020: Discovery of a Protocluster of Massive Quiescent Galaxies at z = 2.772023

    • Author(s)
      Ito Kei、Tanaka Masayuki、Valentino Francesco、Toft Sune、Brammer Gabriel、Gould Katriona M. L.、Ilbert Olivier、Kashikawa Nobunari、Kubo Mariko、Liang Yongming、McCracken Henry J.、Weaver John R.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 945 Issue: 1 Pages: L9-L9

    • DOI

      10.3847/2041-8213/acb49b

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] SILVERRUSH. XII. Intensity Mapping for Lyα Emission Extending over 100-1000 Comoving Kpc around z~2-7 LAEs with Subaru HSC-SSP and CHORUS Data2022

    • Author(s)
      Kikuchihara Shotaro、Harikane Yuichi、Ouchi Masami、Ono Yoshiaki、Shibuya Takatoshi、Itoh Ryohei、Kakuma Ryota、Inoue Akio K.、Kusakabe Haruka、Shimasaku Kazuhiro、Momose Rieko、Sugahara Yuma、Kikuta Satoshi、Saito Shun、Kashikawa Nobunari、Zhang Haibin、Lee Chien-Hsiu
    • Journal Title

      The Astrophysical Journal

      Volume: 931 Issue: 2 Pages: 97-97

    • DOI

      10.3847/1538-4357/ac69de

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Exploratory Study of the Transverse Proximity Effect around BAL Quasars2022

    • Author(s)
      Misawa Toru、Ishimoto Rikako、Kobu Satoshi、Kashikawa Nobunari、Okoshi Katsuya、Noboriguchi Akatoki、Schramm Malte、Liu Qiang
    • Journal Title

      The Astrophysical Journal

      Volume: 933 Issue: 2 Pages: 239-239

    • DOI

      10.3847/1538-4357/ac7715

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The physical origin for spatially large scatter of IGM opacity at the end of reionization: The IGM Lyα opacity-galaxy density relation2022

    • Author(s)
      Ishimoto Rikako、Kashikawa Nobunari、Kashino Daichi、Ito Kei、Liang Yongming、Cai Zheng、Yoshioka Takehiro、Okoshi Katsuya、Misawa Toru、Onoue Masafusa、Takeda Yoshihiro、Uchiyama Hisakazu
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 515 Issue: 4 Pages: 5914-5926

    • DOI

      10.1093/mnras/stac1972

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). IX. The most overdense region at <i>z</i> ? 5 inhabited by a massive radio galaxy2022

    • Author(s)
      Uchiyama Hisakazu、Yamashita Takuji、Nagao Tohru、Ono Yoshiaki、Toshikawa Jun、Ichikawa Kohei、Kawakatu Nozomu、Kajisawa Masaru、Toba Yoshiki、Matsuoka Yoshiki、Kubo Mariko、Imanishi Masatoshi、Ito Kei、Kawaguchi Toshihiro、Lee Chien-Hsiu、Saito Tomoki
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 74 Issue: 6 Pages: 27-32

    • DOI

      10.1093/pasj/psac075

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] An AGN with an Ionized Gas Outflow in a Massive Quiescent Galaxy in a Protocluster at z = 3.092022

    • Author(s)
      Kubo Mariko、Umehata Hideki、Matsuda Yuichi、Kajisawa Masaru、Steidel Charles C.、Yamada Toru、Tanaka Ichi、Hatsukade Bunyo、Tamura Yoichi、Nakanishi Kouichiro、Kohno Kotaro、Lee Kianhong、Matsuda Keiichi、Ao Yiping、Nagao Tohru、Yun Min S.
    • Journal Title

      The Astrophysical Journal

      Volume: 935 Issue: 2 Pages: 89-89

    • DOI

      10.3847/1538-4357/ac7f2d

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). VI. Distant Filamentary Structures Pointed Out by High-z Radio Galaxies at z ? 42022

    • Author(s)
      Uchiyama Hisakazu、Yamashita Takuji、Toshikawa Jun、Kashikawa Nobunari、Ichikawa Kohei、Kubo Mariko、Ito Kei、Kawakatu Nozomu、Nagao Tohru、Toba Yoshiki、Ono Yoshiaki、Harikane Yuichi、Imanishi Masatoshi、Kajisawa Masaru、Lee Chien-Hsiu、Liang Yongming
    • Journal Title

      The Astrophysical Journal

      Volume: 926 Issue: 1 Pages: 76-76

    • DOI

      10.3847/1538-4357/ac441c

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 &lt; z &lt; 7.02022

    • Author(s)
      Matsuoka Y.、Iwasawa K.、Onoue M.、Izumi T.、Kashikawa N.、Strauss M.A.、Imanishi M.、Nagao T.、Akiyama M.、Silverman J.D.、Asami N.、Bosch J.、Furusawa H.、Goto T.、Gunn J.E.、Harikane Y.、Ikeda H.、Ishimoto R.、Kawaguchi Toshihiro、et al.
    • Journal Title

      The Astrophysical Journal Supplement Series

      Volume: 259 Issue: 1 Pages: 18-18

    • DOI

      10.3847/1538-4365/ac3d31

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] CHORUS. IV. Mapping the Spatially Inhomogeneous Cosmic Reionization with Subaru HSC2022

    • Author(s)
      Yoshioka Takehiro、Kashikawa Nobunari、Inoue Akio K.、Yamanaka Satoshi、Shimasaku Kazuhiro、Harikane Yuichi、Shibuya Takatoshi、Momose Rieko、Ito Kei、Liang Yongming、Ishimoto Rikako、Takeda Yoshihiro、Ouchi Masami、Lee Chien-Hsiu
    • Journal Title

      The Astrophysical Journal

      Volume: 927 Issue: 1 Pages: 32-32

    • DOI

      10.3847/1538-4357/ac4b5d

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Catch Me if You Can: Biased Distribution of Lyα-emitting Galaxies according to the Viewing Direction2021

    • Author(s)
      Momose Rieko、Shimasaku Kazuhiro、Nagamine Kentaro、Shimizu Ikkoh、Kashikawa Nobunari、Ando Makoto、Kusakabe Haruka
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 912 Issue: 2 Pages: L24-L24

    • DOI

      10.3847/2041-8213/abf04c

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Probing Feedback via IGM tomography and the Lyα Forest with Subaru PFS, TMT/ELT, and JWST2021

    • Author(s)
      Nagamine Kentaro、Shimizu Ikkoh、Fujita Katsumi、Suzuki Nao、Lee Khee-Gan、Momose Rieko、Mukae Shiro、Liang Yongming、Kashikawa Nobunari、Ouchi Masami、Silverman John D.
    • Journal Title

      The Astrophysical Journal

      Volume: 914 Issue: 1 Pages: 66-66

    • DOI

      10.3847/1538-4357/abfa16

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Interrelation of the Environment of Lyα Emitters and Massive Galaxies at 2<z<4.52021

    • Author(s)
      Ito Kei、Kashikawa Nobunari、Tanaka Masayuki、Kubo Mariko、Liang Yongming、Toshikawa Jun、Uchiyama Hisakazu、Ishimoto Rikako、Yoshioka Takehiro、Takeda Yoshihiro
    • Journal Title

      The Astrophysical Journal

      Volume: 916 Issue: 1 Pages: 35-35

    • DOI

      10.3847/1538-4357/abfc50

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). XIV. A Candidate Type II Quasar at z = 6.12922021

    • Author(s)
      Onoue Masafusa、Matsuoka Yoshiki、Kashikawa Nobunari、Strauss Michael A.、Iwasawa Kazushi、Izumi Takuma、Nagao Tohru、Asami Naoko、Fujimoto Seiji、Harikane Yuichi、Hashimoto Takuya、Imanishi Masatoshi、Lee Chien-Hsiu、Shibuya Takatoshi、Toba Yoshiki
    • Journal Title

      The Astrophysical Journal

      Volume: 919 Issue: 1 Pages: 61-61

    • DOI

      10.3847/1538-4357/ac0f07

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multiple Mg ii Absorption Systems in the Lines of Sight to Quadruply Lensed Quasar H1413+11432021

    • Author(s)
      Okoshi Katsuya、Minowa Yosuke、Kashikawa Nobunari、Misawa Toru、Kashino Daichi、Sugai Hajime、Matsubayashi Kazuya、Shimono Atsushi、Ozaki Shinobu
    • Journal Title

      The Astronomical Journal

      Volume: 162 Issue: 5 Pages: 175-175

    • DOI

      10.3847/1538-3881/ac0bbb

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] スリット分光データを用いたz~4クエーサーにおけるLyαハローの解析2024

    • Author(s)
      星宏樹
    • Organizer
      日本天文学会2024年春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 大規模測光観測データからの原始銀河団検出深層学習技術2024

    • Author(s)
      武田佳大
    • Organizer
      日本天文学会2024年春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Relations between molecular line emission and star formation rate: Exploring variations across different molecules and transitions2024

    • Author(s)
      西村優里
    • Organizer
      Dense GAS in Nearby Galaxies - ALMA Workshop
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 分子の存在比を考慮したモデルによる様々な分子輝線と星形成率の関係2024

    • Author(s)
      西村優里
    • Organizer
      日本天文学会2024年春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] スリット分光データを用いたz~4クエーサーにおけるLyαハローの検出2023

    • Author(s)
      星宏樹
    • Organizer
      第53回天文・天体物理若手夏の学校
    • Related Report
      2023 Annual Research Report
  • [Presentation] PCFNet: Deep learning approach for protocluster detection at z~4 from the HSC-SSP photometric dataset2023

    • Author(s)
      武田佳大
    • Organizer
      A journey through galactic environments
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ALMA Band 3 line survey toward the Cloverleaf quasar at z~2.562023

    • Author(s)
      西村優里
    • Organizer
      2023 Kavli-IAU Astrochemistry Symposium: Astrochemistry VIII - From the First Galaxies to the Formation of Habitable Worlds
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CONquest + CONtrail: chemical characterization of CONs and outflows2023

    • Author(s)
      Yuri Nishimura et al.
    • Organizer
      CONquest workshop 2023
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mining for the protoclusters at z~4 from hsc-ssp photometric dataset with deep learning2023

    • Author(s)
      Yoshihiro Takeda et al.
    • Organizer
      FoPM International Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mining for the protoclusters at z~4 from hsc-ssp photometric dataset with deep learning2023

    • Author(s)
      Yoshihiro Takeda et al.
    • Organizer
      9th GALAXY EVOLUTION WORKSHOP
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] z~6におけるクエーサーのダークマターハロー質量に対する観測的制限2022

    • Author(s)
      有田淳也ほか
    • Organizer
      2022年度第52回天文・天体物理若手夏の学校
    • Related Report
      2022 Annual Research Report
  • [Presentation] z~6におけるクエーサーのダークマターハロー質量に対する観測的制限2022

    • Author(s)
      有田淳也ほか
    • Organizer
      日本天文学会2022年秋季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] The dark halo mass of quasars at z~6 with SHELLQs2022

    • Author(s)
      Junya Arita et al.
    • Organizer
      HSC-AGN f2f meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The dark halo mass of quasars at z~6 with SHELLQs2022

    • Author(s)
      Junya Arita et al.
    • Organizer
      9th GALAXY EVOLUTION WORKSHOP
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] IGMの光学的厚みとLAE密度の関係から探る宇宙再電離非一様性の起源2022

    • Author(s)
      石本梨花子ほか
    • Organizer
      日本天文学会2022年秋季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Physical origin of the spatially inhomogeneous progress of the cosmic reionization2022

    • Author(s)
      Rikako Ishimoto et al.
    • Organizer
      the Fourth Chile-Japan Academic Forum
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ALMA Band 3 line survey toward the Cloverleaf quasar at z~2.562022

    • Author(s)
      Yuri Nishimura et al.
    • Organizer
      Molecules in extreme environments: Near and Far
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ALMA Band 3 line survey toward the Cloverleaf quasar at z~2.562022

    • Author(s)
      Yuri Nishimura et al.
    • Organizer
      A half century of millimeter and submillimeter astronomy: Impact on astronomy/astrophysics and the future
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Predict Lyα Emission Lines from Distant Galaxies with Machine Learning Technique2022

    • Author(s)
      Takehiko Yoshioka et al.
    • Organizer
      Chile-Japan Academic Forum
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 深層学習を用いた hsc-ssp 測光観測 データからの原始銀河団検出2022

    • Author(s)
      武田佳大ほか
    • Organizer
      天文学会秋季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Hunting for protoclusters by deep learning2022

    • Author(s)
      Yoshihiro Takeda et al.
    • Organizer
      Chile-Japan Academic Forum 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Field Variance in LAE-IGM HI Correlation at Cosmic Noon Mapped by Subaru/HSC2022

    • Author(s)
      Yongming Lian et al.
    • Organizer
      Cosmic Cartography 2022: Exploring the Cosmic Web and Large-Scale Structure
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A method to find high-z protoclusters from photometric catalog of dropout galaxies by deep learning2022

    • Author(s)
      Yoshihiro Takeda et al.
    • Organizer
      Galaxy Evolution Workshop 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The rest-frame UV luminosity function of protocluster galaxies at z~4 revealed by HSC-SSP2021

    • Author(s)
      Kei Ito et al.
    • Organizer
      Galaxy Cluster Formation II (GCF 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2<z<4.5 における Lyα 輝線銀河と大質量銀河がなす環境の相互関係2021

    • Author(s)
      伊藤慧ほか
    • Organizer
      日本天文学会 2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Field Variation in LAE-IGM HI Correlation at Cosmic Noon Mapped by Subaru/HSC2021

    • Author(s)
      Yongming Lian et al.
    • Organizer
      Galaxy Evolution Workshop 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] すばる望遠鏡HSCで探る宇宙再電離の非一様性の物理的起源2021

    • Author(s)
      石本梨花子ほか
    • Organizer
      第51回天文・天体物理若手夏の学校
    • Related Report
      2021 Annual Research Report
  • [Presentation] すばる望遠鏡HSCで探る宇宙再電離の非一様性の物理的起源2021

    • Author(s)
      石本梨花子ほか
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Mapping the Spatially Inhomogeneous Cosmic Reionization with Subaru HSC2021

    • Author(s)
      Takehiro Yoshioka et al.
    • Organizer
      SAZERAC2
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 中性水素マッピング: HSC で挑む宇宙再電離の空間的非一様性の解明2021

    • Author(s)
      吉岡岳洋ほか
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Mapping the Spatially Inhomogeneous Cosmic Reionization with Subaru HSC2021

    • Author(s)
      Takehiro Yoshioka et al.
    • Organizer
      Galaxy IGM workshop
    • Related Report
      2021 Annual Research Report
  • [Presentation] VoidNet: Void Galaxy Selection from g-dropout Catalog by Deep Learning2021

    • Author(s)
      Yoshihiro Takeda et al.
    • Organizer
      Galaxy Cluster Formation II
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Remarks] クェーサーの光、ダークマターの影

    • URL

      https://www.s.u-tokyo.ac.jp/ja/press/10005/

    • Related Report
      2023 Annual Research Report
  • [Remarks] なぜ宇宙再電離は非一様に進んだのか?

    • URL

      https://apps.adm.s.u-tokyo.ac.jp/WEB_info/p/p/8026/naxc43Pt/

    • Related Report
      2022 Annual Research Report
  • [Remarks] “かくれんぼ” をしている銀河の発見

    • URL

      https://www.s.u-tokyo.ac.jp/ja/info/7356

    • Related Report
      2021 Annual Research Report
  • [Remarks] すばる望遠鏡×異常検知AIが捉えたへんてこな銀河たち

    • URL

      https://www.s.u-tokyo.ac.jp/ja/info/7650/

    • Related Report
      2021 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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