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2013 Fiscal Year Final Research Report

Probing the Dark Age: From First Generation Objects to Primordial Galaxies

Research Project

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Project/Area Number 20224002
Research Category

Grant-in-Aid for Scientific Research (S)

Allocation TypeSingle-year Grants
Research Field Astronomy
Research InstitutionUniversity of Tsukuba

Principal Investigator

UMEMURA Masayuki  筑波大学, 数理物質系, 教授 (70183754)

Co-Investigator(Kenkyū-buntansha) YOSHIKAWA Koji  筑波大学, 数理物質系, 講師 (70451672)
Co-Investigator(Renkei-kenkyūsha) SUSA Hajime  甲南大学, 理工学部, 教授 (00323262)
MORI Masao  筑波大学, 数理物質系, 准教授 (10338585)
Project Period (FY) 2008-05-12 – 2013-03-31
Keywords宇宙物理 / 第一世代天体 / 銀河形成 / 宇宙暗黒時代 / 専用並列計算機
Research Abstract

We have explored the history of the dark age in the universe from first objects to primordial galaxies by using the Cosmo Simulator FIRST, and then obtained significant results on 1) Formation of first-generation objects and successive star formation, 2) Formation of primordial galaxies and radiative transfer of UV radiation, 3) Cosmological modeling of Lyman alpha emitters, 4) Formation of globular clusters within UV radiation, 5) Merger of massive black holes in primordial galaxies. Besides, a novel method for direct integration of the collisionless Boltzmann equation in Six-dimensional phase space has been developed. In addition, based on the theoretical outcomes, a lot of collaborations on the observations of primeval galaxies have been made, resulting in significant progresses in the study of primordial galaxies.

  • Research Products

    (57 results)

All 2014 2013 2012 2011 2010 2009 2008 Other

All Journal Article (53 results) (of which Peer Reviewed: 34 results) Presentation (1 results) Book (2 results) Remarks (1 results)

  • [Journal Article] Merger criteria of multiple massive black holes and the impact on the host galaxy2014

    • Author(s)
      Tanikawa, A., Umemura, M.
    • Journal Title

      MNRAS

      Volume: 440 Pages: 652-662

    • Peer Reviewed
  • [Journal Article] What is the Physical Origin of Strong Lyα Emission? I. Demographics of Lyα Emitter Structures2014

    • Author(s)
      Shibuya, T., Ouchi, M., Nakajima, K., Yuma, S., Hashimoto, T., Shimasaku, K., Mori, M., Umemura, M.
    • Journal Title

      ApJ

      Volume: 785 Pages: 64 (12)

    • Peer Reviewed
  • [Journal Article] First Systematic Search for Oxygen-line Blobs at High Redshift : Uncovering AGN Feedback and Star Formation Quenching2013

    • Author(s)
      Yuma, S., Ouchi, M., Drake, A. B., Simpson, C., Shimasaku, K., Nakajima, K., Ono, Y., Momose, R., Akiyama, M., Mori, M., Umemura, M.
    • Journal Title

      ApJ

      Volume: 779 Pages: 53 (12)

    • Peer Reviewed
  • [Journal Article] Ultra Fast Outflows : Galaxy-Scale Active Galactic Nucleus Feedback2013

    • Author(s)
      Wagner, A. Y., Umemura, M., Bicknell, G. V.
    • Journal Title

      ApJ

      Volume: 763 Pages: L18 (5)

    • Peer Reviewed
  • [Journal Article] Direct Integration of the Collisionless Boltzmann Equation in Six-dimensional Phase Space : Self-gravitating Systems2013

    • Author(s)
      Yoshikawa, K., Yoshida, N., Umemura, M.
    • Journal Title

      ApJ

      Volume: 762 Pages: 116 (18)

    • Peer Reviewed
  • [Journal Article] Formation and radiative feedback of first objects and first galaxies2012

    • Author(s)
      Umemura, M., Susa, H., Hasegawa, K., Suwa, T., Semelin, B.
    • Journal Title

      PTEP

      Volume: 2012 Pages: 01A306 (23)

    • Peer Reviewed
  • [Journal Article] Driving Outflows with Relativistic Jets and the Dependence of Active Galactic Nucleus Feedback Efficiency on Interstellar Medium Inhomogeneity2012

    • Author(s)
      Wagner, A.Y., Bicknell, G. V., Umemura, M.
    • Journal Title

      ApJ

      Volume: 757 Pages: 136-169

    • Peer Reviewed
  • [Journal Article] Diffuse Lyα haloes around Lyα emitters at z=3 : do dark matter distributions determine the Lyα spatial extents?2012

    • Author(s)
      Matsuda, Y., Yamada, T., Hayashino, T., Yamauchi, R., Nakamura, Y., Morimoto, N., Ouchi, M., Ono, Y., Umemura, M., Mori, M.
    • Journal Title

      MNRAS

      Volume: 425 Pages: 878-883

    • Peer Reviewed
  • [Journal Article] Profiles of Lyman α Emission Lines2012

    • Author(s)
      Yamada, T., Matsuda, Y., Kousai, K., Hayashino, T., Morimoto, N., Umemura, M.
    • Journal Title

      AJ

      Volume: 751 Pages: 29-41

    • Peer Reviewed
  • [Journal Article] Panoramic Survey of Lyα Emitters at z = 3.12012

    • Author(s)
      Yamada, T., Nakamura, Y., Matsuda, Y., Hayashino, T., Yamauchi, R., Morimoto, N., Kousai, K., Umemura, M.
    • Journal Title

      AJ

      Volume: 143 Pages: 79-92

    • Peer Reviewed
  • [Journal Article] Sub-millimetre brightness of early star-forming galaxies2012

    • Author(s)
      Yajima, H., Umemura, M., Mori, M.
    • Journal Title

      MNRAS

      Volume: 420 Pages: 3381-3388

    • Peer Reviewed
  • [Journal Article] ARGOT : Accelerated radiative transfer on grids using oct-tree2012

    • Author(s)
      Okamoto, T., Yoshikawa, K., Umemura, M.
    • Journal Title

      MNRAS

      Volume: 419 Pages: 2855-2866

    • Peer Reviewed
  • [Journal Article] Successive merger of multiple massive black holes in a primordial galaxy and its effect on the galactic structure2012

    • Author(s)
      Tanikawa, A., Umemura, M.
    • Journal Title

      American Institute of Physics Conference Series

      Volume: 1480 Pages: 430-432

  • [Journal Article] Successive Mergers of Multiple Massive Black Holes in a Primordial Galaxy2011

    • Author(s)
      Tanikawa, A., Umemura, M.
    • Journal Title

      ApJ

      Volume: 728 Pages: L31-L35

    • Peer Reviewed
  • [Journal Article] The Subaru Lyα blob survey : a sample of 100-kpc Lyα blobs at z = 32011

    • Author(s)
      Matsuda, Y., Umemura, M., Mori, M., 他11名
    • Journal Title

      MNRAS

      Volume: 410 Pages: L13-L17

    • Peer Reviewed
  • [Journal Article] START : Smoothed particle hydrodynamics with tree-based accelerated radiative transfer2010

    • Author(s)
      Hasegawa, K., Umemura, M.
    • Journal Title

      MNRAS

      Volume: 407 Pages: 2632-2644

    • Peer Reviewed
  • [Journal Article] Two types of Lyman-alpha emitters envisaged from hierarchical galaxy formation2010

    • Author(s)
      Shimizu, I., Umemura, M.
    • Journal Title

      MNRAS

      Volume: 406 Pages: 913-921

    • Peer Reviewed
  • [Journal Article] Hydrodynamic Simulations of Merging Galaxy Clusters : Non-Equilibrium Ionization State and Two-Temperature Structure2010

    • Author(s)
      Akahori, T., Yoshikawa, K.
    • Journal Title

      PASJ

      Volume: 62 Pages: 335-345

    • Peer Reviewed
  • [Journal Article] Ultraviolet and Infrared Radiation from Protogalaxies2010

    • Author(s)
      Yajima, H., Umemura, M., Mori, M.
    • Journal Title

      American Institute of Physics Conference Series

      Volume: 1294 Pages: 295-296

  • [Journal Article] The Impact of Ultraviolet Radiation on Secondary Pop III Star Formation2010

    • Author(s)
      Hasegawa, K., Umemura, M., Suwa, T.
    • Journal Title

      American Institute of Physics Conference Series

      Volume: 1294 Pages: 262-263

    • Peer Reviewed
  • [Journal Article] Successive Mergers of Multiple Massive Black Holes in a Primordial Galaxy2010

    • Author(s)
      Tanikawa, A., Umemura, M.
    • Journal Title

      American Institute of Physics Conference Series

      Volume: 1294 Pages: 242-245

  • [Journal Article] First Stars and GRBs, and their Cosmological Impacts2010

    • Author(s)
      Umemura, M.
    • Journal Title

      American Institute of Physics Conference Series

      Volume: 1279 Pages: 97-102

  • [Journal Article] Metal enrichment in supernova-dominated high-zgalaxies2010

    • Author(s)
      Mori, M., Umemura, M., Yajima, H.
    • Journal Title

      American Institute of Physics Conference Series

      Volume: 1279 Pages: 52-59

  • [Journal Article] A Supernova-driven Wind Model for High-z Galaxies2010

    • Author(s)
      Mori, M., Umemura, M., Yajima, H.
    • Journal Title

      American Institute of Physics Conference Series

      Volume: 1269 Pages: 430-432

  • [Journal Article] Collision tomography : the progenitor of the Andromeda stellar stream and the metallicity gradient2010

    • Author(s)
      Miki, Y., Mori, M., Rich, R. M.
    • Journal Title

      AIP Conference Proceedings

      Volume: 1269 Pages: 400-402

  • [Journal Article] The Core-Cusp Problem in CDM Halos and Supernova Feedback2010

    • Author(s)
      Ogiya, G., Mori, M.
    • Journal Title

      American Institute of Physics Conference Series

      Volume: 1269 Pages: 421-423

  • [Journal Article] Impacts of diffuse UV radiation on the secondary Population III star formation2010

    • Author(s)
      Hasegawa, K., Umemura, M., Suwa, T.
    • Journal Title

      American Institute of Physics Conference Series

      Volume: 1238 Pages: 107-110

  • [Journal Article] The Collapse of First Objects driven by Dark Matter Cusps2010

    • Author(s)
      Umemura, M., Suwa, T., Susa, H.
    • Journal Title

      American Institute of Physics Conference Series

      Volume: 1238 Pages: 101-106

  • [Journal Article] Orientation Effects on the Inner Region of Dusty Torus of Active Galactic Nuclei2010

    • Author(s)
      Kawaguchi, T. and Mori, M.
    • Journal Title

      ApJ

      Volume: 724 Pages: L183-L187

    • Peer Reviewed
  • [Journal Article] Generation of Seed Magnetic Field Around First Stars : Effects of Radiation Force2010

    • Author(s)
      Ando, M.,Doi, K., Susa, H.
    • Journal Title

      ApJ

      Volume: 716 Pages: 1566-1572

    • Peer Reviewed
  • [Journal Article] The properties of satellite galaxies in simulations of galaxy formation2010

    • Author(s)
      Okamoto, T., Frenk, C. S., Jenkins, A., Theuns, T.
    • Journal Title

      MNRAS

      Volume: 406, 208 Pages: 208-222

    • Peer Reviewed
  • [Journal Article] The angular momentum of cold dark matter haloes with and without baryons2010

    • Author(s)
      Bett, P., Eke, V., Frenk, C. S., Jenkins, A., Okamoto, T.
    • Journal Title

      MNRAS

      Volume: 404 Pages: 1137

    • Peer Reviewed
  • [Journal Article] Cosmological Radiative Transfer Comparison Project II : The Radiation-Hydrodynamic Tests2009

    • Author(s)
      Iliev, I., Susa, H., Umemura, M., 他11名
    • Journal Title

      MNRAS

      Volume: 400 Pages: 1283-1316

    • Peer Reviewed
  • [Journal Article] The escape of ionizing photons from supernova-dominated primordial galaxies2009

    • Author(s)
      Yajima, H., Umemura, M., Mori, M., Nakamoto, T.
    • Journal Title

      MNRAS

      Volume: 398 Pages: 715-721

    • Peer Reviewed
  • [Journal Article] Formation Criteria and the Mass of Secondary Population III Stars2009

    • Author(s)
      Susa, H., Umemura, M., Hasegawa, K.
    • Journal Title

      ApJ

      Volume: 702 Pages: 480

    • Peer Reviewed
  • [Journal Article] Radiative regulation of Population III star formation2009

    • Author(s)
      Hasegawa, K., Umemura, M., Susa, H.
    • Journal Title

      MNRAS

      Volume: 395 Pages: 1280-1286

    • Peer Reviewed
  • [Journal Article] Formation of globular clusters induced by external ultraviolet radiation2009

    • Author(s)
      Hasegawa, K., Umemura, M., Kitayama, T.
    • Journal Title

      MNRAS

      Volume: 397 Pages: 1338-1347

    • Peer Reviewed
  • [Journal Article] Global Radiation-Magnetohydrodynamic Simulations of Black-Hole Accretion Flow and Outflow: Unified Model of Three States2009

    • Author(s)
      Ohsuga, K., Mineshige, S., Mori, M., Kato, Y.
    • Journal Title

      PASJ

      Volume: 61 Pages: L7-L11

    • Peer Reviewed
  • [Journal Article] The origin of failed subhaloes and the common mass scale of the Milky Way satellite galaxies2009

    • Author(s)
      Okamoto, T., Frenk, C.S.
    • Journal Title

      MNRAS

      Volume: 399 Pages: L174-L178

    • Peer Reviewed
  • [Journal Article] Toward First-Principle Simulations of Galaxy Formation : II. Shock-Induced Starburst at a Collision Interface during the First Encounter of Interacting Galaxies2009

    • Author(s)
      Saitoh, T. R., Daisaka, H., Kokubo, E., Makino, J., Okamoto, T., Tomisaka, K., Wada, K., Yoshida, N.
    • Journal Title

      PASJ

      Volume: 61 Pages: 481-486

    • Peer Reviewed
  • [Journal Article] Computational Astrophysics with a Hybrid Simulator FIRST2009

    • Author(s)
      Umemura, M.
    • Journal Title

      Association of Asia Pacific Physical Societies, Research Activities on Astronomy and Astrophysics in Japan

      Volume: 19 Pages: 36-42

    • Peer Reviewed
  • [Journal Article] The impact of a supernova explosion in a very massive binary2008

    • Author(s)
      Sato, J., Umemura, M.
    • Journal Title

      MNRAS

      Volume: 387 Pages: 1517-1524

    • Peer Reviewed
  • [Journal Article] Non-Equilibrium Ionization State and Two-Temperature Structure in the Linked Region of Abell 399 and Abell 4012008

    • Author(s)
      Akahori, T., Yoshikawa, K.
    • Journal Title

      PASJ

      Volume: 60 Pages: L19-L22

    • Peer Reviewed
  • [Journal Article] Regulated star formation in forming disk galaxies exposed to the ultraviolet radiation background2008

    • Author(s)
      Susa, H.
    • Journal Title

      ApJ

      Volume: 684 Pages: 226-235

    • Peer Reviewed
  • [Journal Article] Evolution of Lyman-α Emitters, Lyman-break Galaxies and Elliptical Galaxies2008

    • Author(s)
      Mori, M., Umemura, M.
    • Journal Title

      Astronomical Society of the Pacific Conference Series

      Volume: 399 Pages: 288

  • [Journal Article] Large Scale Structure of Lyman-Alpha Absorbers in the SSA22 Region at z=3.12008

    • Author(s)
      Nakamura, Y., Hayashino, T., Yamada, T., Matsuda, Y., Yamauchi, R., Kousai, K., Morimoto, N., Umemura, M.
    • Journal Title

      Astronomical Society of the Pacific Conference Series

      Volume: 399 Pages: 135

  • [Journal Article] Novel Picture for Lyman-Alpha Emitters2008

    • Author(s)
      Shimizu, I., Umemura, M.
    • Journal Title

      Astronomical Society of the Pacific Conference Series

      Volume: 399 Pages: 129

  • [Journal Article] Escape Fraction of Ionizing Photons from High-z Proto-Galaxy2008

    • Author(s)
      Yajima, H., Umemura, M., Mori, M., Nakamoto, T.
    • Journal Title

      Astronomical Society of the Pacific Conference Series

      Volume: 399 Pages: 70

  • [Journal Article] Radiative Transfer SPH Simulations of UV Feedback on Pop III Star Formation2008

    • Author(s)
      Sato, D., Umemura, M., Susa, H., Suwa, T.
    • Journal Title

      First Stars III

      Volume: 990 Pages: 393-394

  • [Journal Article] High Resolution P3M-GRAPE-SPH Simulations of PopIII Star Formation2008

    • Author(s)
      Suwa, T., Umemura, M., Sato, D., Susa, H.
    • Journal Title

      First Stars III

      Volume: 990 Pages: 390-392

  • [Journal Article] FIRST Project : Formation and Feedback of the First Stars2008

    • Author(s)
      Umemura, M., Susa, H., Suwa, T., Sato, D.
    • Journal Title

      First Stars III

      Volume: 990 Pages: 386-389

  • [Journal Article] Beyond the Unified Theory : Evolution of Active Galactic Nuclei Driven by Starburst Events2008

    • Author(s)
      Watabe, Y., Umemura, M.
    • Journal Title

      Mapping the Galaxy and Nearby Galaxies

      Pages: 384

  • [Journal Article] Coevolution and Downsizing of Supermassive Black Holes and Galactic Bulges2008

    • Author(s)
      Umemura, M.
    • Journal Title

      Mapping the Galaxy and Nearby Galaxies

      Pages: 283-289

  • [Presentation] ダークマター宇宙における超巨大ブラックホールの階層的成長過程2013

    • Author(s)
      梅村雅之
    • Organizer
      日本天文学会春季年会
    • Place of Presentation
      埼玉大学, さいたま市
    • Year and Date
      2013-03-23
  • [Book] 宇宙流体力学の基礎, シリーズ<宇宙物理学の基礎>12014

    • Author(s)
      福江純,和田桂一,梅村雅之
    • Total Pages
      357
    • Publisher
      日本評論社
  • [Book] 岩波講座 計算科学 第2巻 計算と宇宙2012

    • Author(s)
      宇川彰,青木慎也,初田哲男,柴田大,梅村雅之,西村淳
    • Total Pages
      250 ページ(161 ページ-203 ページ)
    • Publisher
      岩波書店
  • [Remarks]

    • URL

      http://www.ccs.tsukuba.ac.jp/Astro/PoM/pom.html

URL: 

Published: 2015-07-16  

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