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2023 Fiscal Year Annual Research Report

Growth history of galaxies and supermassive black holes explored by Euclid, eROSITA, and Subaru Telescope

Research Project

Project/Area Number 22H01266
Allocation TypeSingle-year Grants
Research InstitutionNational Astronomical Observatory of Japan

Principal Investigator

鳥羽 儀樹  国立天文台, ハワイ観測所, 特任助教 (40825957)

Project Period (FY) 2022-04-01 – 2026-03-31
Keywords超巨大ブラックホール / 銀河団 / すばる望遠鏡 / 環境効果
Outline of Annual Research Achievements

銀河と超巨大ブラックホールの共進化史に迫るため本年度は下記に示すような研究成果を得た。

1. HSCで見つかった銀河団における活動銀河核(AGN)の "number" fraction:すばる望遠鏡 Hyper Suprime-Cam (HSC) で見つかった銀河群・銀河団 (CAMIRA銀河団)に所属する100万天体以上のメンバー銀河におけるAGNの発現について統計的な調査を行った。赤外線・電波・X線カタログを併用することにより無バイアスなAGNサンプルを構築し、CAMIRA銀河団中のメンバー銀河の中でAGNを持つ天体の割合 (AGN number fraction)を見積もり、AGN number fraction の (i) 赤方偏移依存性および (ii)銀河団中心からの距離依存性 を調べた。その結果、AGN fraciton は高赤方偏移ほど増加し、銀河団中心ほど多くなることが分かった (Hashiguchi, Toba et al. 2023, PASJ, 75, 1246)。

2. HSCで見つかった銀河団における活動銀河核(AGN)の "energy" fraction: 1. で実施した研究ではAGNの個数に着目していたが、ここでは energy fraction (全赤外線光度に対するAGNの寄与率)をAGNの活動度の指標として採用することで、活動度の低いAGNも含めた調査を実施した。100万天体近くのメンバー銀河全てに対してスペクトルエネルギー分布(SED)解析を実施し、AGNの発現と環境の関係を調査した。その結果、特に銀河団同士の合体が銀河団外縁部のメンバー銀河のAGN活動を促すことが分かった (Toba et al. 2024, ApJ, 受理済み、印刷中)。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

今年度は、昨年度に今後の方針として検討していた2つの研究を査読論文として発表した他、幾つかの研究成果をあげることができた。
具体的には、すばるHSCを用いた銀河団と活動銀河核(AGN)活動の関連性の調査を2つの視点(AGN number fraction および energy fraction) から調べた研究 (Hashiguchi, Toba et al. 2023, PASJ, 75, 1246; Toba et al. 2024, ApJ, in press.)をはじめ、計21本の査読論文を出版できた。
また、eFEDSで見つかった極超高光度赤外線銀河の可視光線分光追観測結果も投稿済みである。
さらに、今年度打ち上げられたEuclid衛星のサイエンスチームの一員として、銀河形態に関する論文(Euclid Collaboration 2024, A&A, 査読中)にも貢献できた。

以上のことからおおむね順調に進んでいると言える。

Strategy for Future Research Activity

特に来年度は超巨大ブラックホールの活動性とその環境依存性に着目して研究を進めていく。

1. eROSITA衛星で見つかった超高光度赤外線銀河 (HyLIRGs) 候補の追観測:eROSITAの1回目の全天探査データ(eRASS1)が公開された。これまで研究対象としてきたeFEDS領域にある天体も含めた系統的なHyLIRGs探査を実施する。特にブラックホールへの質量降着率やボロメトリック光度を多波長追観測を通じて調査する。
2. 銀河合体とAGNの発現の環境依存性の調査: すばるHSCが持つ高い画質(解像度)を活かして、これまでSDSSなどでは見落とされてきたような銀河合体の兆候を示す銀河を発見し、それらとAGNや(密度)環境を統計的な手法を用いて調査する。
さらに、Euclid衛星のチーム内データを用いたサイエンスにも着手したい。

  • Research Products

    (42 results)

All 2024 2023 Other

All Int'l Joint Research (6 results) Journal Article (20 results) (of which Int'l Joint Research: 19 results,  Peer Reviewed: 20 results,  Open Access: 18 results) Presentation (15 results) (of which Int'l Joint Research: 9 results,  Invited: 3 results) Funded Workshop (1 results)

  • [Int'l Joint Research] マックス・プランク地球外物理 学研究所 (MPE)/ポツダム大学(ドイツ)

    • Country Name
      GERMANY
    • Counterpart Institution
      マックス・プランク地球外物理 学研究所 (MPE)/ポツダム大学
  • [Int'l Joint Research] プリンストン大学(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      プリンストン大学
  • [Int'l Joint Research] 中央研究院天文及天文物理研究 所 (ASIAA)/国立清華大学 (NTHU)(台湾)

    • Country Name
      その他の国・地域
    • Counterpart Institution
      中央研究院天文及天文物理研究 所 (ASIAA)/国立清華大学 (NTHU)
  • [Int'l Joint Research] サウサンプトン大学(英国)

    • Country Name
      UNITED KINGDOM
    • Counterpart Institution
      サウサンプトン大学
  • [Int'l Joint Research] アテネ国立天文台(ギリシャ)

    • Country Name
      GREECE
    • Counterpart Institution
      アテネ国立天文台
  • [Int'l Joint Research]

    • # of Other Countries
      2
  • [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 Pages: 152~152

    • DOI

      10.3847/1538-4357/ad1518

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multiwavelength Spectral Energy Distribution Analysis of X-Ray Selected Active Galactic Nuclei at z = 0.2-0.8 in the Stripe 82 Region2024

    • Author(s)
      Setoguchi Kenta、Ueda Yoshihiro、Toba Yoshiki、Li Junyao、Silverman John、Uematsu Ryosuke
    • Journal Title

      The Astrophysical Journal

      Volume: 961 Pages: 246~246

    • DOI

      10.3847/1538-4357/ad1186

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Apparent Effect of Dust Extinction on the Observed Outflow Velocity of Ionized Gas in Galaxy Mergers2024

    • Author(s)
      Yutani Naomichi、Toba Yoshiki、Wada Keiichi
    • Journal Title

      The Astrophysical Journal

      Volume: 961 Pages: 68~68

    • DOI

      10.3847/1538-4357/ad0dfc

    • Peer Reviewed / Open Access
  • [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 Pages: 112~112

    • DOI

      10.3847/1538-4357/ad045e

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A population of Optically Quiescent Quasars from WISE and SDSS2023

    • Author(s)
      Greenwell Claire、Gandhi Poshak、Stern Daniel、Lansbury George、Mainieri Vincenzo、Boorman Peter、Toba Yoshiki
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 527 Pages: 12065~12090

    • DOI

      10.1093/mnras/stad3964

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The eROSITA final equatorial-depth survey (eFEDS): host-galaxy demographics of X-ray AGNs with Subaru Hyper Suprime-Cam2023

    • Author(s)
      Li Junyao、Silverman John D、Merloni Andrea、Salvato Mara、Buchner Johannes、Goulding Andy、Liu Teng、Arcodia Riccardo、Comparat Johan、Ding Xuheng、Ichikawa Kohei、Imanishi Masatoshi、Kawaguchi Toshihiro、Kawinwanichakij Lalitwadee、Toba Yoshiki
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 527 Pages: 4690~4704

    • DOI

      10.1093/mnras/stad3438

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] New technique to select recent fast-quenching galaxies at z ~ 2 using the optical colours2023

    • Author(s)
      Kubo Mariko、Nagao Tohru、Uchiyama Hisakazu、Yamashita Takuji、Toba Yoshiki、Kajisawa Masaru、Yamamoto Yuta
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 527 Pages: 403~413

    • DOI

      10.1093/mnras/stad3210

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] AGN number fraction in galaxy groups and clusters at z < 1.4 from the Subaru Hyper Suprime-Cam survey2023

    • Author(s)
      Hashiguchi Aoi、Toba Yoshiki、Ota Naomi、Oguri Masamune、Okabe Nobuhiro、Ueda Yoshihiro、Imanishi Masatoshi、et al.
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 75 Pages: 1246~1261

    • DOI

      10.1093/pasj/psad066

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Similarity between Compact Extremely Red Objects Discovered with JWST in Cosmic Dawn and Blue-excess Dust-obscured Galaxies Known in Cosmic Noon2023

    • Author(s)
      Noboriguchi Akatoki、Inoue Akio K.、Nagao Tohru、Toba Yoshiki、Misawa Toru
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 959 Pages: L14~L14

    • DOI

      10.3847/2041-8213/ad0e00

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] BASS. XLII. The Relation between the Covering Factor of Dusty Gas and the Eddington Ratio in Nearby Active Galactic Nuclei2023

    • Author(s)
      Ricci C.、Ichikawa K.、Stalevski M.、Kawamuro T.、Yamada S.、Ueda Y.、Mushotzky R.、Privon G. C.、Koss M. J.、Trakhtenbrot B.、Fabian A. C.、Ho L. C.、Asmus D.、Bauer F. E.、Chang C. S.、Gupta K. K.、Oh K.、Powell M.、Pfeifle R. W.、Rojas A.、Ricci F.、Temple M. J.、Toba Y.、et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 959 Pages: 27~27

    • DOI

      10.3847/1538-4357/ad0733

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Radial and Local Density Dependence of Star Formation Properties in Galaxy Clusters from the Hyper Suprime-Cam Survey2023

    • Author(s)
      Jian Hung-Yu、Lin Lihwai、Hsieh Bau-Ching、Umetsu Keiichi、Lopez-Coba Carlos、Oguri Masamune、Bottrell Connor、Toba Yoshiki、Koyama Yusei、Chang Yu-Yen、Kodama Tadayuki、Komiyama Yutaka、More Surhud、Lin Kai-Yang、Nishizawa Atsushi J.、Tanaka Ichi
    • Journal Title

      The Astrophysical Journal

      Volume: 957 Pages: 85~85

    • DOI

      10.3847/1538-4357/acfc22

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Galaxy mergers in Subaru HSC-SSP: A deep representation learning approach for identification, and the role of environment on merger incidence2023

    • Author(s)
      Omori Kiyoaki Christopher、Bottrell Connor、Walmsley Mike、Yesuf Hassen M.、Goulding Andy D.、Ding Xuheng、Popping Gergo、Silverman John D.、Takeuchi Tsutomu T.、Toba Yoshiki
    • Journal Title

      Astronomy & Astrophysics

      Volume: 679 Pages: A142~A142

    • DOI

      10.1051/0004-6361/202346743

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A new discovery space opened by eROSITA2023

    • Author(s)
      Musiimenta B.、Brusa M.、Liu T.、Salvato M.、Buchner J.、Igo Z.、Waddell S. G. H.、Toba Y.、Arcodia R.、Comparat J.、Alexander D.、Shankar F.、Lapi A.、Ramos Almeida C.、Georgakakis A.、Merloni A.、Urrutia T.、Li J.、Terashima Y.、Shen Y.、Wu Q.、Dwelly T.、Nandra K.、Wolf J.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 679 Pages: A84~A84

    • DOI

      10.1051/0004-6361/202245555

    • 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.、...、Toba Yoshiki、et al.
    • Journal Title

      Nature

      Volume: 621 Pages: 51~55

    • DOI

      10.1038/s41586-023-06345-5

    • Peer Reviewed / 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 Pages: 210~210

    • DOI

      10.3847/1538-4357/ace43a

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Morphological asymmetries of quasar host galaxies with Subaru Hyper Suprime-Cam2023

    • Author(s)
      Tang Shenli、Silverman John D、Yesuf Hassen M、Ding Xuheng、Li Junyao、Bottrell Connor、Goulding Andy、Omori Kiyoaki Christopher、Toba Yoshiki、Kawaguchi Toshihiro
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 521 Pages: 5272~5297

    • DOI

      10.1093/mnras/stad877

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

    • Author(s)
      Matsuoka Yoshiki、Onoue Masafusa、Iwasawa Kazushi、Strauss Michael A.、...、Toba Yoshiki、et al.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 949 Pages: L42~L42

    • DOI

      10.3847/2041-8213/acd69f

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The cosmic web of X-ray active galactic nuclei seen through the eROSITA Final Equatorial Depth Survey (eFEDS)2023

    • Author(s)
      Comparat Johan、Luo Wentao、Merloni Andrea、More Surhud、Salvato Mara、Krumpe Mirko、Miyaji Takamitsu、Brandt William、Georgakakis Antonis、Akiyama Masayuki、Buchner Johannes、Dwelly Tom、Kawaguchi Toshihiro、Liu Teng、Nagao Tohru、Nandra Kirpal、Silverman John、Toba Yoshiki、Anderson Scott F.、Kollmeier Juna
    • Journal Title

      Astronomy & Astrophysics

      Volume: 673 Pages: A122~A122

    • DOI

      10.1051/0004-6361/202245726

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Machine-learning Approach to Assessing the Presence of Substructure in Quasar-host Galaxies Using the Hyper Suprime-cam Subaru Strategic Program2023

    • Author(s)
      Nagele Chris、Silverman John D.、Hartwig Tilman、Li Junyao、Bottrell Connor、Ding Xuheng、Toba Yoshiki
    • Journal Title

      The Astrophysical Journal

      Volume: 947 Pages: 30~30

    • DOI

      10.3847/1538-4357/acbd4a

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] eROSITA Final Equatorial-Depth Survey (eFEDS)2023

    • Author(s)
      Ichikawa Kohei、Yamashita Takuji、Merloni Andrea、...、Toba Yoshiki、Ueda Yoshihiro
    • Journal Title

      Astronomy & Astrophysics

      Volume: 672 Pages: A171~A171

    • DOI

      10.1051/0004-6361/202244271

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] PFS-AGN sciences2024

    • Author(s)
      Y.Toba, and PFS-GE AGN subWG
    • Organizer
      PFS-satellite workshop
    • Int'l Joint Research
  • [Presentation] Mid-infrared view of optically dark galaxies in the AKARI NEP field2024

    • Author(s)
      Y.Toba
    • Organizer
      ALMA workshop 2023A
    • Int'l Joint Research
  • [Presentation] AGN sciences with PFS-SSP galaxy evolution survey2024

    • Author(s)
      Yoshiki Toba, Yoshiki Matsuoka, Tohru Nagao, Masayuki Akiyama, Kohei Ichikawa, Mitsuru Kokubo, Hisakazu Uchiyama, Hideki Umehata, and PFS-SSP GE AGN subWG
    • Organizer
      日本天文学会 春季年会
  • [Presentation] PFS-SSPによるAGNサイエンス検討状況の紹介2024

    • Author(s)
      鳥羽儀樹
    • Organizer
      第1回 PFS-AGN タウンミーティング
    • Invited
  • [Presentation] すばるHSCによるAGNサイエンスと今後の展望2024

    • Author(s)
      鳥羽儀樹
    • Organizer
      ブラックホール大研究会 ~星質量から超巨大ブラックホールまで~
    • Invited
  • [Presentation] An overview of the HSC-AGN science2023

    • Author(s)
      Y.Toba
    • Organizer
      The HSC-AGN collaboration meeting 2023
    • Int'l Joint Research
  • [Presentation] Dust properties of extremely luminous infrared galaxies2023

    • Author(s)
      Y.Toba
    • Organizer
      Illuminating the Dusty Universe: A Tribute to the Work of Bruce Draine
    • Int'l Joint Research
  • [Presentation] How does the AGN number fraction in galaxy clusters depend on redshift and distance from the cluster center?2023

    • Author(s)
      Y.Toba
    • Organizer
      East-Asia AGN Workshop 2023
    • Int'l Joint Research
  • [Presentation] A search for the most luminous galaxies in the Universe2023

    • Author(s)
      Y.Toba
    • Organizer
      International Symposium on Advanced and Sustainable Science and Technology
    • Int'l Joint Research / Invited
  • [Presentation] Dust-obscured AGN viewed with multi-wavelength data2023

    • Author(s)
      Y.Toba
    • Organizer
      ASIAA Colloquium
    • Int'l Joint Research
  • [Presentation] Ionized and molecular gas outflow in dust-obscured AGN2023

    • Author(s)
      Y.Toba
    • Organizer
      Mini-workshop on AGN x ALMA
    • Int'l Joint Research
  • [Presentation] Galaxy SED and morphological works based on Subaru Hyper Suprime-Cam towards Euclid2023

    • Author(s)
      Y.Toba
    • Organizer
      Euclid Consortium meeting 2023
    • Int'l Joint Research
  • [Presentation] AGN number fraction in galaxy groups and clusters at z < 1.4 from the Subaru Hyper Suprime-Cam survey2023

    • Author(s)
      鳥羽儀樹, 橋口葵, 太田直美, 柴田実桜, 柳川晏里, 吉本愛使, 大栗真宗, 岡部信広, 上田佳宏, 今西昌俊, 山下拓時, 山田智史, 後藤友嗣, 小山舜平, 李建鋒, 三石郁之, 作田皓基, 長尾透, 大木平, 寺島雄一 , 西澤淳, 登口暁, Malte Schramm
    • Organizer
      日本天文学会 秋季年会
  • [Presentation] 赤外線 (WISE) × X線 (eROSITA) 全天探査で探る宇宙で最も明るい銀河探査2023

    • Author(s)
      鳥羽儀樹
    • Organizer
      プラネタリウムで俯瞰する多波長全天/広域サーベイ
  • [Presentation] 銀河群・銀河団 vs. フィールド: 活動銀河核の発現と環境依存性2023

    • Author(s)
      鳥羽儀樹
    • Organizer
      第11回 山田研究会「宇宙における降着現象 ~活動性・多様性の源~
  • [Funded Workshop] HSC-AGN collaboration meeting 20232023

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Published: 2024-12-25  

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