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Studies of super massive blackhole formation and cosmic reionization by early quasar survey

Research Project

Project/Area Number 23340050
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionNational Astronomical Observatory of Japan

Principal Investigator

KASHIKAWA Nobunari  国立天文台, TMT推進室, 准教授 (00290883)

Co-Investigator(Renkei-kenkyūsha) SHIMASAKU Kazuhiro  東京大学, 理学系研究科, 准教授 (00251405)
OUCHI Masami  東京大学, 宇宙線研究所, 准教授 (40595716)
FURUSAWA Hisanori  国立天文台, 天文データセンター, 助教 (10425407)
Project Period (FY) 2011-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2011: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords初期宇宙 / ブラックホール / 宇宙再電離 / 銀河形成 / 銀河共進化
Outline of Final Research Achievements

In this study, we carried out a high-z quasar survey by combining large telescope, wide-field imaging, and special filter, which are unique capabilities of Subaru telescope. We discovered two distant faint quasars at z~6 from the observations over the last four years. These are 100 times fainter than the typical quasars at the same redshifts, implying that they are still in the growth phase. They could determine the faint-end of the quasar luminosity function, constraining the formation model of early blackholes. In addition, we have obtained noteworthy results on the initial large scale structure and intergalactic medium.

Report

(5 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (53 results)

All 2015 2014 2013 2012 2011 Other

All Journal Article (26 results) (of which Peer Reviewed: 26 results,  Acknowledgement Compliant: 1 results,  Open Access: 1 results) Presentation (23 results) (of which Invited: 18 results) Book (1 results) Remarks (3 results)

  • [Journal Article] The Subaru High-z Quasar Survey: Discovery of Faint z ~ 6 Quasars2015

    • Author(s)
      Kashikawa, Nobunari; Ishizaki, Yoshifumi; Willott, Chris J.; Onoue, Masafusa; Im, Myungshin; Furusawa, Hisanori; Toshikawa, Jun; Ishikawa, Shogo; Niino, Yuu; Shimasaku, Kazuhiro; Ouchi, Masami; Hibon, Pascale
    • Journal Title

      The Astrophysical Journal

      Volume: 798 Issue: 1 Pages: 28-37

    • DOI

      10.1088/0004-637x/798/1/28

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A First Site of Galaxy Cluster Formation: Complete Spectroscopy of a Protocluster at z=6.012014

    • Author(s)
      Jun Toshikawa
    • Journal Title

      The Astrophysical Journal

      Volume: 792 Issue: 1 Pages: 15-29

    • DOI

      10.1088/0004-637x/792/1/15

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] ALMA Observation of 158 mum [C II] Line and Dust Continuum of a z = 7 Normally Star-forming Galaxy in the Epoch of Reionization2014

    • Author(s)
      Ota, Kazuaki; Walter, Fabian; Ohta, Kouji; Hatsukade, Bunyo; Carilli, Chris L.; da Cunha, Elisabete; Gonzalez-Lopez, Jorge; Decarli, Roberto; Hodge, Jacqueline A.; Nagai, Hiroshi; Egami, Eiichi; Jiang, Linhua; Iye, Masanori; Kashikawa, Nobunari; Riechers, Dominik A.; Bertoldi, Frank; Cox他3名
    • Journal Title

      The Astrophysical Journal

      Volume: 792 Issue: 1 Pages: 34-46

    • DOI

      10.1088/0004-637x/792/1/34

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Extended LyA Emission from a Damped LyA Absorber at z = 3.1152014

    • Author(s)
      Kashikawa, Nobunari; Misawa, Toru; Minowa, Yosuke; Okoshi, Katsuya; Hattori, Takashi; Toshikawa, Jun; Ishikawa, Shogo; Onoue, Masafusa
    • Journal Title

      The Astrophysical Journal

      Volume: 780 Issue: 2 Pages: 116-123

    • DOI

      10.1088/0004-637x/780/2/116

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] "Direct" Gas-phase Metallicities, Stellar Properties, and Local Environments of Emission-line Galaxies at Redshifts below 0.902014

    • Author(s)
      Ly, C. et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 780 Issue: 2 Pages: 122-149

    • DOI

      10.1088/0004-637x/780/2/122

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Physical Properties of Spectroscopically Confirmed Galaxies at z >= 6. I. Basic Characteristics of the Rest-frame UV Continuum and Lyα Emission2013

    • Author(s)
      Jiang, L. et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 772 Issue: 2 Pages: 99-118

    • DOI

      10.1088/0004-637x/772/2/99

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Physical Properties of Spectroscopically Confirmed Galaxies at z >= 6. II. Morphology of the Rest-frame UV Continuum and Lyα Emission2013

    • Author(s)
      Jiang, L. et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 772 Issue: 2 Pages: 153-166

    • DOI

      10.1088/0004-637x/773/2/153

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Kinematics and Excitation of the Ram Pressure Stripped Ionized Gas Filaments in the Coma Cluster of Galaxies2012

    • Author(s)
      Yoshida, Michitoshi ; Yagi, Masafumi ; Komiyama, Yutaka ; Furusawa, Hisanori ; Kashikawa, Nobunari ; Hattori, Takashi ; Okamura, Sadanori
    • Journal Title

      Astrophysical Journal

      Volume: 749 Issue: 1 Pages: 43-43

    • DOI

      10.1088/0004-637x/749/1/43

    • NAID

      120005300488

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Hubble Space Telescope Cluster Supernova Survey. III. Correlated Properties of Type Ia Supernovae and Their Hosts at 0.9 < Z < 1.462012

    • Author(s)
      J. Meyers
    • Journal Title

      The Astrophysical Journal

      Volume: 750 Issue: 1 Pages: 1-24

    • DOI

      10.1088/0004-637x/750/1/1

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Discovery of a Protocluster at z ~ 62012

    • Author(s)
      Toshikawa, J. et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 750 Issue: 2 Pages: 137-148

    • DOI

      10.1088/0004-637x/750/2/137

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Resolving the Galaxies within a Giant Lyα Nebula: Witnessing the Formation of a Galaxy Group?2012

    • Author(s)
      M.K.M. Prescott
    • Journal Title

      The Astrophysical Journal

      Volume: 752 Issue: 2 Pages: 86-111

    • DOI

      10.1088/0004-637x/752/2/86

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The First Systematic Survey for Lyman Alpha Emitters at z=7.3 with Red・sensitive Subaru/Suprime-Cam2012

    • Author(s)
      澁谷 隆俊
    • Journal Title

      The Astrophysical Journal, 受理,掲載

      Volume: 752 Issue: 2 Pages: 114-124

    • DOI

      10.1088/0004-637x/752/2/114

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A search for z= 7.3 Lyα emitters behind gravitationally lensing clusters2012

    • Author(s)
      K. Ota
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 423 Issue: 3 Pages: 2829-2839

    • DOI

      10.1111/j.1365-2966.2012.21091.x

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Galaxy Luminosity Functions down to MR=-10 in the Coma Cluster2012

    • Author(s)
      Komiyama, Yutaka, et al.
    • Journal Title

      The Astronomical Jourmal

      Volume: 144 Issue: 2 Pages: 40-53

    • DOI

      10.1088/0004-6256/144/2/40

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Stellar Population and Star Formation Rates of z = 1.5-1.6 [O II]-emitting Galaxies Selected from Narrowband Emission-line Surveys2012

    • Author(s)
      Ly, C. et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 757 Issue: 1 Pages: 63-76

    • DOI

      10.1088/0004-637x/757/1/63

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unusual Long and Luminous Optical Transient in the Subaru Deep Field2012

    • Author(s)
      Y. Urata
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 760 Issue: 1 Pages: 11-17

    • DOI

      10.1088/2041-8205/760/1/l11

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Ly alpha Emitter with an Extremely Large Rest-frame Equivalent Width of ~ 900 A at z = 6.5: A Candidate Population III-dominated Galaxy?2012

    • Author(s)
      Kashikawa, N. et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 761 Issue: 2 Pages: 85-94

    • DOI

      10.1088/0004-637x/761/2/85

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spectroscopic Confirmation of Three z-Dropout Galaxies at z=6.844-7.213 : Demographics of Lyman-Alpha Emission in Galaxies at z~72012

    • Author(s)
      Ono, Y., Ouchi, M., et al
    • Journal Title

      The Astrophysical Journal

      Volume: 744 Issue: 2 Pages: 83-95

    • DOI

      10.1088/0004-637x/744/2/83

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Search for z~7 Ly-alpha emitters with Suprime-Cam at the Subaru Telescope2012

    • Author(s)
      Pascale Hibon
    • Journal Title

      The Astrophysical Journal

      Volume: 744 Issue: 2 Pages: 89-97

    • DOI

      10.1088/0004-637x/744/2/89

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Hubble Space Telescope Cluster Supernova Survey. VI. The Volumetric Type Ia Supernova Rate2012

    • Author(s)
      Barbary, K., 他43名(含土居)
    • Journal Title

      The Astrophysical Journal

      Volume: 745 Issue: 1 Pages: 20-31

    • DOI

      10.1088/0004-637x/745/1/31

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Hubble Space Telescope Cluster Supernova Survey. II. The Type Ia Supernova Rate in High-redshift Galaxy Clusters2012

    • Author(s)
      Barbary, K., 他43名(含土居)
    • Journal Title

      The Astrophysical Journal

      Volume: 745 Issue: 1 Pages: 32-60

    • DOI

      10.1088/0004-637x/745/1/32

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Hubble Space Telescope Cluster Supernova Survey. V. Improving the Dark-energy Constraints above z>1 and Building an Early-type-hosted Supernova Sample2012

    • Author(s)
      Suzuki, N., 他55名(含土居)
    • Journal Title

      The Astrophysical Journal

      Volume: 746 Issue: 1 Pages: 85-109

    • DOI

      10.1088/0004-637x/746/1/85

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dust attenuation and HαStar Formation Rates of z~ 0.5 Galaxies2012

    • Author(s)
      Ly, C., Malkan, M. A., Kashikawa, N., 他
    • Journal Title

      ApJ

      Volume: 747 Issue: 1 Pages: 16-22

    • DOI

      10.1088/2041-8205/747/1/l16

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Completing the Census of Ly-alpha Emitters at the Reionization Epoch2011

    • Author(s)
      柏川伸成
    • Journal Title

      The Astrophysical Journal

      Volume: 734 Issue: 2 Pages: 119-137

    • DOI

      10.1088/0004-637x/734/2/119

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Census of Star-forming Galaxies at z = 1-3 in the Subaru Deep Field2011

    • Author(s)
      Ly, C. et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 735 Issue: 2 Pages: 91-115

    • DOI

      10.1088/0004-637x/735/2/91

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Keck Spectroscopy of Lyman-break Galaxies and Its Implications for the UV-continuum and Ly alpha Luminosity Functions at z > 62011

    • Author(s)
      Jiang, L. et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 743 Issue: 1 Pages: 65-74

    • DOI

      10.1088/0004-637x/743/1/65

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] TMT science cases2015

    • Author(s)
      Nobunari Kashikawa
    • Organizer
      3rd Annual Symposium of the Innovative Area on Multi-messenger Study of Gravitational Wave Sources
    • Place of Presentation
      (広島県)、広島大学
    • Year and Date
      2015-02-19 – 2015-02-21
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] High-z science summary2014

    • Author(s)
      Nobunari Kashikawa
    • Organizer
      Evolution of SMBHs with HSC: First results from initial dataset
    • Place of Presentation
      (台湾)、ACADEMIA SINICA
    • Year and Date
      2014-12-18 – 2014-12-20
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] First quasar 検出への展望2014

    • Author(s)
      柏川伸成
    • Organizer
      超巨大ブラックホール研究 推進連絡会 第2回ワークショップ
    • Place of Presentation
      (茨城県)、筑波大学
    • Year and Date
      2014-11-03 – 2014-11-04
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] TMTの進捗状況2014

    • Author(s)
      柏川伸成
    • Organizer
      光天連シンポジウム
    • Place of Presentation
      (東京都)、国立天文台三鷹
    • Year and Date
      2014-09-08 – 2014-09-10
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 次世代大型光赤観測装置とAGN研究2014

    • Author(s)
      柏川伸成
    • Organizer
      活動銀河核ワークショップ ~2020年代への展望~
    • Place of Presentation
      (東京都)、国立天文台三鷹
    • Year and Date
      2014-04-23 – 2014-04-24
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Direct Gas-Phase Metallicities, Stellar Properties, and Local Environments of Emission-Line Galaxies at Redshifts below 0.92014

    • Author(s)
      Ly, Chun; Malkan, M. A.; Nagao, T.; Kashikawa, N.; Shimasaku, K.; Hayashi, M.
    • Organizer
      American Astronomical Society, AAS Meeting 223
    • Place of Presentation
      (アメリカ)、Gaylord National Resort
    • Related Report
      2013 Annual Research Report
  • [Presentation] High-z quasar sciences2014

    • Author(s)
      Nobunari Kashikawa
    • Organizer
      Quasar science with HSC: Toward the first results
    • Place of Presentation
      (台湾)、ACADEMIA SINICA
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] TMT観測装置計画2013

    • Author(s)
      柏川伸成
    • Organizer
      光天連シンポ「2020年代の光赤外天文学 - 将来計画の再構成」
    • Place of Presentation
      (東京都)、国立天文台
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] A LyA Emitter with an Extremely Large Rest-frame Equivalent Width of 900A at z=6.52013

    • Author(s)
      Nobunari Kashikawa
    • Organizer
      Galaxy evolution over five decades
    • Place of Presentation
      (イギリス)、University of Cambridge
    • Related Report
      2013 Annual Research Report
  • [Presentation] DLAは円盤銀河の祖先か?2013

    • Author(s)
      柏川伸成
    • Organizer
      円盤銀河の形成と進化
    • Place of Presentation
      (東京都)、国立天文台
    • Related Report
      2013 Annual Research Report
  • [Presentation] When I wish upon WISH2013

    • Author(s)
      Nobunari Kashikawa
    • Organizer
      WISH Science workshop
    • Place of Presentation
      (東京都)、国立天文台
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] TMTが拓く天文学2013

    • Author(s)
      柏川伸成
    • Organizer
      第2回観測的宇宙論ワークショップ
    • Place of Presentation
      (東京都)、国立天文台
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 大型光学赤外線望遠鏡TMT2013

    • Author(s)
      柏川伸成
    • Organizer
      第26回理論懇シンポジウム
    • Place of Presentation
      (千葉県)、東京大学カブリ数物連携宇宙研究機構
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Observational constraints on reionization and popIII2013

    • Author(s)
      柏川伸成
    • Organizer
      ALMA時代の宇宙構造形成理論:第1世代から第n世代へ
    • Place of Presentation
      (北海道)、北海道大学
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] High-z Universe Probed by Wide-Field Observations2012

    • Author(s)
      N. Kashikawa
    • Organizer
      39th COSPAR Scientific Assembly
    • Place of Presentation
      (インド)、マイソール・ナラヤナマーシーセンター
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Discovery of a protocluster at z ~ 62012

    • Author(s)
      J. Toshikawa
    • Organizer
      FIRST STARS IV - FROM HAYASHI TO THE FUTURE
    • Place of Presentation
      (京都府)、Kyoto University
    • Related Report
      2012 Annual Research Report
  • [Presentation] TMTとHSCの共進化2012

    • Author(s)
      柏川伸成
    • Organizer
      すばるHSCサーベイによるサイエンス
    • Place of Presentation
      (東京都)、国立天文台
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] High-z universe probed by Subaru2012

    • Author(s)
      N. Kashikawa
    • Organizer
      Korea-Japan Collaboration Workshop
    • Place of Presentation
      (韓国)、Seoul National University
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] HSC high-z qso survey2012

    • Author(s)
      N.Kashikawa
    • Organizer
      Supermassive Black Holes in the Universe: The Era of the HSC Surveys
    • Place of Presentation
      (愛媛県)、Ehime University
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] First galaxies and cosmic reionization2012

    • Author(s)
      N.Kashikawa
    • Organizer
      TMT Science and Instrumentation Workshop
    • Place of Presentation
      (インド)、プネ・天文インターユニバーシティーセンター
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] TMTとSPICAのシナジー2011

    • Author(s)
      柏川伸成
    • Organizer
      SPICAが目指す宇宙星形成史とブラックホール進化
    • Place of Presentation
      (愛知県)、名古屋大学
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] High-z QSO survey2011

    • Author(s)
      柏川伸成
    • Organizer
      HSC活動銀河核探査によるサイエンス
    • Place of Presentation
      (京都府)、京都大学
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] A Search for Young Metal-poor Galaxies at Intermediate Redshifts2011

    • Author(s)
      C. Ly
    • Organizer
      Galaxy formation
    • Place of Presentation
      (イギリス)、Durham University
    • Related Report
      2011 Annual Research Report
  • [Book] 新天文学事典2013

    • Author(s)
      谷口義明
    • Total Pages
      768
    • Publisher
      講談社
    • Related Report
      2012 Annual Research Report
  • [Remarks] すばる望遠鏡が見つけた宇宙最遠方の銀河団

    • URL

      http://subarutelescope.org/Pressrelease/2012/04/23/j_index.html

    • Related Report
      2012 Annual Research Report
  • [Remarks] 最遠方銀河で見る夜明け前の宇宙の姿

    • URL

      http://subarutelescope.org/Pressrelease/2012/06/03/j_index.html

    • Related Report
      2012 Annual Research Report
  • [Remarks] 129.1 億光年の彼方、宇宙の「夜明け」にきらめく銀河を発見

    • URL

      http://subarutelescope.org/Pressrelease/2011/12/15/j_index.html

    • Related Report
      2011 Annual Research Report

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Published: 2011-04-06   Modified: 2019-07-29  

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