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2022 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 / 銀河合体 / せいめい望遠鏡 / eROSITA衛星 / すばる望遠鏡
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. eROSITA衛星を用いた活動銀河核 (AGN) の性質調査:eROSITAがPVフェイズに観測したeFEDSと呼ばれる天域に存在する様々な活動度の超巨大ブラックホールを探査した。発見された天体に対して多波長解析を施すことで、超巨大ブラックホールおよびその母銀河に関する物理量を調べた。その結果、eROSITAで検出された天体の多くは従来から知られているような性質をもつ典型的な天体種族であることが分かった一方で、eROSITAで検出されなかった天体は超巨大ブラックホールの周囲に大量のガスが存在するような珍しいタイプの種族を含んでいることが分かった (Toba et al. 2022, A&A, 661, A15)。

2. 京大せいめい望遠鏡KOOLS-IFUによる赤外線銀河の面分光観測:銀河と超巨大ブラックホールの共進化メカニズム理解の鍵を握ると考えられている現象の1つに銀河合体がある。銀河合体が超巨大ブラックホールやその母銀河にどのような影響を及ぼすのかを理解するためには空間分解した観測(面分光観測)が必須である。そこで我々は京都大学「せいめい」望遠鏡に搭載されている可視光線面分光装置 (KOOLS-IFU) を用いた近傍赤外線銀河の面分光観測を実施した。特にAGN起源のアウトフロー(AGNアウトフロー)の強さの指標として酸素の2階電離輝線に着目した。9天体について解析した結果、(1) 銀河中心ほどAGNアウトフローが強いこと、(2) 銀河合体ステージが進むにつれてAGNアウトフローが強くなること を発見した。これは銀河合体がAGN起源のアウトフローの強弱に寄与していることを示唆している (Toba et al. 2022, PASJ, 74, 6)。

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eFEDSにおける活動銀河核の性質調査(Toba et al. 2022, A&A, 661, A15) および 近傍赤外線銀河の可視光面分光観測 (Toba et al. 2022, PASJ, 74, 6) の2つの主著論文をはじめ、計26本の査読論文を出版できた。
また、eROSITAによるX線全天探査データ公開に先駆けて予備的研究や銀河団と活動銀河核の関係に関する研究も論文化に向けて順調に進んでいる (来年度投稿・出版予定)。
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

今後、特に来年度は超巨大ブラックホールの活動性の環境依存性に着目して研究を進めていく。
N “number fraction” の環境依存性:銀河群や銀河団中のメンバー銀河の中で活動銀河核(AGN)を持つ銀河の個数、その割合 (AGN number fraction)が、赤方偏移や銀河団中心からの距離にどのように依存するのか、またその様子はフィールド銀河(銀河群や銀河団に所属していない銀河)と異なるのかを調査する。
2. AGN “energy fraction” の環境依存性:銀河群や銀河団のメンバー銀河、個々の銀河についてスペクトルエネルギー分布(SED)解析から全赤外線光度に対するAGNからの寄与率(AGN energy fraction)を算出し、それが赤方偏移や銀河団中心からの距離にどのように依存するのか、またその様子はフィールド銀河と異なるのかを調査する。1. との関連も興味深い。
さらに、eROSITAによるX線全天探査データの1回目の公開およびEuclid衛星の打ち上げは来年度を予定していることを受け、その予備的研究も進めていく予定である。

  • Research Products

    (42 results)

All 2023 2022 Other

All Int'l Joint Research (5 results) Journal Article (22 results) (of which Int'l Joint Research: 22 results,  Peer Reviewed: 22 results,  Open Access: 16 results) Presentation (15 results) (of which Int'l Joint Research: 9 results,  Invited: 7 results)

  • [Int'l Joint Research] マックス・プランク地球外物理 学研究所 (MPE)/ポツダム天体物理天文台 (AIP)(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)/ポツダム天体物理天文台 (AIP)
  • [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] ボローニャ大学(イタリア)

    • Country Name
      ITALY
    • Counterpart Institution
      ボローニャ大学
  • [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
  • [Journal Article] ALMA Lensing Cluster Survey: Properties of Millimeter Galaxies Hosting X-Ray-detected Active Galactic Nuclei2023

    • Author(s)
      Uematsu Ryosuke、Ueda Yoshihiro、Kohno Kotaro、Yamada Satoshi、Toba Yoshiki、Fujimoto Seiji、Hatsukade Bunyo、Umehata Hideki、Espada Daniel、Sun Fengwu、Magdis Georgios E.、Kokorev Vasily、Ao Yiping
    • Journal Title

      The Astrophysical Journal

      Volume: 945 Pages: 121~121

    • DOI

      10.3847/1538-4357/acb4e9

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Massive Molecular Gas Companions Uncovered by Very Large Array CO(1-0) Observations of the z = 5.2 Radio Galaxy TN J0924-22012023

    • Author(s)
      Lee Kianhong、Kohno Kotaro、Hatsukade Bunyo、Egusa Fumi、Yamashita Takuji、Schramm Malte、Ichikawa Kohei、Imanishi Masatoshi、Izumi Takuma、Nagao Tohru、Toba Yoshiki、Umehata Hideki
    • Journal Title

      The Astrophysical Journal

      Volume: 944 Pages: 35~35

    • DOI

      10.3847/1538-4357/acaf58

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Metallicity-PAH Relation of MIR-selected Star-forming Galaxies in AKARI North Ecliptic Pole-wide Survey2023

    • Author(s)
      Shim Hyunjin、Hwang Ho Seong、Jeong Woong-Seob、Toba Yoshiki、Kim Minjin、Kim Dohyeong、Song Hyunmi、Hashimoto Tetsuya、Nakagawa Takago、Nanni Ambra、Pearson William J.、Takagi Toshinobu
    • Journal Title

      The Astronomical Journal

      Volume: 165 Pages: 31~31

    • DOI

      10.3847/1538-3881/aca09c

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Optical IFU observations of GOALS sample with KOOLS-IFU on Seimei Telescope: Initial results of nine U/LIRGs at z < 0.042022

    • Author(s)
      Toba Yoshiki、Yamada Satoshi、Matsubayashi Kazuya、Terao Koki、Moriya Aoi、Ueda Yoshihiro、Ohta Kouji、et al.
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 74 Pages: 1356~1367

    • DOI

      10.1093/pasj/psac073

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The eROSITA Final Equatorial-Depth Survey (eFEDS). A multiwavelength view of WISE mid-infrared galaxies/active galactic nuclei2022

    • Author(s)
      Toba Yoshiki、Liu Teng、Urrutia Tanya、Salvato Mara、Li Junyao、Ueda Yoshihiro、Brusa Marcella、Yutani Naomichi、Wada Keiichi、Nishizawa Atsushi J.、et al.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 661 Pages: A15~A15

    • DOI

      10.1051/0004-6361/202141547

    • 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 z ~ 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 Pages: L27~L32

    • DOI

      10.1093/pasj/psac075

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Extreme Nature of Four Blue-excess Dust-obscured Galaxies Revealed by Optical Spectroscopy2022

    • Author(s)
      Noboriguchi Akatoki、Nagao Tohru、Toba Yoshiki、Ichikawa Kohei、Kajisawa Masaru、Kato Nanako、Kawaguchi Toshihiro、Matsuhara Hideo、Matsuoka Yoshiki、Onishi Kyoko、Onoue Masafusa、Tamada Nozomu、Terao Koki、Terashima Yuichi、Ueda Yoshihiro、Yamashita Takuji
    • Journal Title

      The Astrophysical Journal

      Volume: 941 Pages: 195~195

    • DOI

      10.3847/1538-4357/aca403

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Obscured Fraction of Quasars at Cosmic Noon2022

    • Author(s)
      Vijarnwannaluk Bovornpratch、Akiyama Masayuki、Schramm Malte、Ueda Yoshihiro、Matsuoka Yoshiki、Toba Yoshiki、Sawicki Marcin、Gwyn Stephen、Pflugradt Janek
    • Journal Title

      The Astrophysical Journal

      Volume: 941 Pages: 97~97

    • DOI

      10.3847/1538-4357/ac9c07

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spitzer/IRS Full Spectral Modeling to Characterize Mineralogical Properties of Silicate Dust in Heavily Obscured AGNs2022

    • Author(s)
      Tsuchikawa T.、Kaneda H.、Oyabu S.、Kokusho T.、Kobayashi H.、Toba Y.
    • Journal Title

      The Astrophysical Journal

      Volume: 941 Pages: 50~50

    • DOI

      10.3847/1538-4357/ac9b23

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) - XV. Constraining the cosmic reionization at 5.5 < z < 72022

    • Author(s)
      Lu Ting-Yi、Goto Tomotsugu、Hashimoto Tetsuya、Santos Daryl Joe D、Wong Yi Hang Valerie、Kim Seong Jin、Hsiao Tiger Y-Y、Kilerci Ece、Ho Simon C-C、Nagao Tohru、Matsuoka Yoshiki、Onoue Masafusa、Toba Yoshiki、SHELLQs collaboration
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 517 Pages: 1264~1281

    • DOI

      10.1093/mnras/stac2681

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] XXL-HSC: Link between AGN activity and star formation in the early Universe (z > 3.5)2022

    • Author(s)
      Pouliasis E.、Mountrichas G.、Georgantopoulos I.、Ruiz A.、Gilli R.、Koulouridis E.、Akiyama M.、Ueda Y.、Garrel C.、Nagao T.、Paltani S.、Pierre M.、Toba Y.、Vignali C.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 667 Pages: A56~A56

    • DOI

      10.1051/0004-6361/202243502

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The statistical properties of 28 IR-bright dust-obscured galaxies and SED modelling using CIGALE2022

    • Author(s)
      Suleiman Nofoz、Noboriguchi Akatoki、Toba Yoshiki、Balazs Lajos G、Burgarella Denis、Kovacs Timea、Marton Gabor、Talafha Mohammed、Frey Sandor、Toth L Viktor
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 74 Pages: 1157~1185

    • DOI

      10.1093/pasj/psac061

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Origin and Evolution of Dust-obscured Galaxies in Galaxy Mergers2022

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

      The Astrophysical Journal

      Volume: 936 Pages: 118~118

    • DOI

      10.3847/1538-4357/ac87a2

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multiwavelength properties of 850-μm selected sources from the North Ecliptic Pole SCUBA-2 survey2022

    • Author(s)
      Shim Hyunjin、Lee Dongseob、Kim Yeonsik、Scott Douglas、Serjeant Stephen、Ao Yiping、..., Toba Yoshiki、White Glenn J、Woo Jong-Hak
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 514 Pages: 2915~2935

    • DOI

      10.1093/mnras/stac1105

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). VII. Redshift Evolution of Radio Galaxy Environments at z = 0.3-1.42022

    • Author(s)
      Uchiyama Hisakazu、Yamashita Takuji、Nagao Tohru、Ichikawa Kohei、Toba Yoshiki、Ishikawa Shogo、Kubo Mariko、Kajisawa Masaru、Kawaguchi Toshihiro、Kawakatu Nozomu、Lee Chien-Hsiu、Noboriguchi Akatoki
    • Journal Title

      The Astrophysical Journal

      Volume: 934 Pages: 68~68

    • DOI

      10.3847/1538-4357/ac77ee

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Passive spiral galaxies deeply captured by Subaru Hyper Suprime-Cam2022

    • Author(s)
      Shimakawa Rhythm、Tanaka Masayuki、Bottrell Connor、Wu Po-Feng、Chang Yu-Yen、Toba Yoshiki、Ali Sadman
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 74 Pages: 612~624

    • DOI

      10.1093/pasj/psac023

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On the Connection between Supermassive Black Holes and Galaxy Growth in the Reionization Epoch2022

    • Author(s)
      Li Junyao、Silverman John D.、Izumi Takuma、He Wanqiu、Akiyama Masayuki、Inayoshi Kohei、Matsuoka Yoshiki、Onoue Masafusa、Toba Yoshiki
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 931 Pages: L11~L11

    • DOI

      10.3847/2041-8213/ac6de8

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Detection of Extended Millimeter Emission in the Host Galaxy of 3C 273 and Its Implications for QSO Feedback via High Dynamic Range ALMA Imaging2022

    • Author(s)
      Komugi Shinya、Toba Yoshiki、Matsuoka Yoshiki、Saito Toshiki、Yamashita Takuji
    • Journal Title

      The Astrophysical Journal

      Volume: 930 Pages: 3~3

    • DOI

      10.3847/1538-4357/ac616e

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] North Ecliptic Pole merging galaxy catalogue2022

    • Author(s)
      Pearson W. J.、Suelves L. E.、Ho S. C.-C.、Oi N.、Brough S.、Holwerda B. W.、Hopkins A. M.、Huang T.-C.、Hwang H. S.、Kelvin L. S.、Kim S. J.、Lopez-Sanchez A. R.、Malek K.、Pearson C.、Poliszczuk A.、Pollo A.、Rodriguez-Gomez V.、Shim H.、Toba Y.、Wang L.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 661 Pages: A52~A52

    • DOI

      10.1051/0004-6361/202141013

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The eROSITA Final Equatorial-Depth Survey (eFEDS). The first archetypal quasar in the feedback phase discovered by eROSITA2022

    • Author(s)
      Brusa M.、Urrutia T.、Toba Y.、Buchner J.、Li J.-Y.、Liu T.、Perna M.、Salvato M.、Merloni A.、Musiimenta B.、Nandra K.、Wolf J.、Arcodia R.、Dwelly T.、Georgakakis A.、Goulding A.、Matsuoka Y.、Nagao T.、Schramm M.、Silverman J. D.、Terashima Y.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 661 Pages: A9~A9

    • DOI

      10.1051/0004-6361/202141092

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The eROSITA Final Equatorial-Depth Survey (eFEDS). The AGN catalog and its X-ray spectral properties2022

    • Author(s)
      Liu Teng、Buchner Johannes、Nandra Kirpal、Merloni Andrea、Dwelly Tom、...、Toba Yoshiki、Ichikawa Kohei、Iwasawa Kazushi、Shen Yue、Medel Hector Ibarra
    • Journal Title

      Astronomy & Astrophysics

      Volume: 661 Pages: A5~A5

    • DOI

      10.1051/0004-6361/202141643

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The eROSITA Final Equatorial-Depth Survey (eFEDS). Identification and characterization of the counterparts to point-like sources2022

    • Author(s)
      Salvato M.、Wolf J.、Dwelly T.、Georgakakis A.、Brusa M.、Merloni A.、Liu T.、Toba Y.、et al.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 661 Pages: A3~A3

    • DOI

      10.1051/0004-6361/202141631

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] How do galaxy mergers affect the ionized gas kinematics of galaxies? ~KOOLS-IFU/Seimei view of local U/LIRGs~2023

    • Author(s)
      Y.Toba, S.Yamada, K.Matsubayashi, K.Terao, A.Moriya, Y.Ueda, and GOLAS-KOOLS collaboration
    • Organizer
      9th Galaxy Evolution Workshop
    • Int'l Joint Research
  • [Presentation] PFS-SSP preparation: AGN sciences with cosmology and galaxy evolution surveys2023

    • Author(s)
      Y.Toba, and PFS-GE AGN subWG
    • Organizer
      Subaru Users Meeting FY2022
    • Int'l Joint Research
  • [Presentation] Optical IFU Observations of GOALS Sample with KOOLS-IFU on Seimei Telescope: Initial results of 9 U/LIRGs at z < 0.042023

    • Author(s)
      Yoshiki Toba, Satoshi Yamada, Kazuya Matsubayashi, ..., and collaborators
    • Organizer
      日本天文学会 春季年会
  • [Presentation] AGNサイエンス:光赤外データとJEDIとのシナジー2023

    • Author(s)
      鳥羽儀樹
    • Organizer
      第22回高宇連研究会
    • Invited
  • [Presentation] An overview of the HSC-AGN sciences2022

    • Author(s)
      Y.Toba
    • Organizer
      Tracing the SMBH growth: outlook beyond the HSC-SSP, and future collaborations
    • Int'l Joint Research
  • [Presentation] A multi-wavelength view of Active Galactic Nuclei selected with eROSITA2022

    • Author(s)
      Y.Toba
    • Organizer
      ISAS Astrophysics Colloquia
    • Int'l Joint Research / Invited
  • [Presentation] eROSITA and WISE view of dust-obscured AGN at z < 42022

    • Author(s)
      Y.Toba, T.Liu, T.Urrutia, M.Salvato, J.Li, Y.Ueda, M.Brusa, N.Yutani, K.Wada, and HSC-eROSITA AGN collaboration
    • Organizer
      What drives the growth of black holes: a decade of reflection
    • Int'l Joint Research
  • [Presentation] An Introduction of Dust-Obscured AGN Viewed with Multi-Wavelength Data2022

    • Author(s)
      Y.Toba
    • Organizer
      2022 NCHU Astrophysics Symposium
    • Int'l Joint Research / Invited
  • [Presentation] Dependence of AGN fraction on cluster redshift and the distance from the cluster center viewed with Subaru Hyper Suprime-Cam2022

    • Author(s)
      Y.Toba, A.Hashiguchi, N.Ota, M.Oguri, N.Okabe, B.-Ch.Hsieh, A.Yanagawa, Y.Ueda, and HSC Projects 364 and 417 members
    • Organizer
      COSPAR 2022
    • Int'l Joint Research
  • [Presentation] X-ray properties of WISE selected AGN viewed with eROSITA2022

    • Author(s)
      Y.Toba
    • Organizer
      KIAA-DoA seminar
    • Int'l Joint Research / Invited
  • [Presentation] Multi-wavelength view of dust-obscured AGN2022

    • Author(s)
      Y.Toba
    • Organizer
      Astronomy Colloquium
    • Int'l Joint Research / Invited
  • [Presentation] PFS余剰ファイバーを用いたAGNサイエンス案2022

    • Author(s)
      鳥羽儀樹、松岡良樹、長尾透、三澤透、John Silverman
    • Organizer
      PFS科学運用に関するコミュニティーミーティング
  • [Presentation] 超/高光度赤外線銀河 (U/LIRGs) の可視面分光観測でさぐる銀河合体と電離ガスアウトフローの関係2022

    • Author(s)
      鳥羽儀樹
    • Organizer
      京都大学3.8m望遠鏡協議会
    • Invited
  • [Presentation] The eROSITA Final Equatorial-Depth Survey (eFEDS): A multiwavelength view of WISE mid-infrared galaxies/active galactic nuclei2022

    • Author(s)
      Yoshiki Toba, Teng Liu, Tanya Urrutia, Mara Salvato, Junyao Li, Yoshihiro Ueda, and eROSITA-HSC AGN collaboration
    • Organizer
      日本天文学会 秋季年会
  • [Presentation] 近傍U/LIRGs の可視面分光観測でさぐる銀河合体と電離ガスアウトフローの関係2022

    • Author(s)
      鳥羽儀樹
    • Organizer
      2022年度せいめいユーザーズミーティング
    • Invited

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Published: 2023-12-25  

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