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2010 Fiscal Year Annual Research Report

クォーク力学・原子核構造に基づく爆発的天体現象と元素合成

Planned Research

Project AreaResearch on the Emergence of Hierarchical Structure of Matter by Bridging Particle, Nuclear and Astrophysics in Computational Science
Project/Area Number 20105004
Research InstitutionTokyo University of Science

Principal Investigator

鈴木 英之  東京理科大学, 理工学部, 教授 (90211987)

Co-Investigator(Kenkyū-buntansha) 柴田 大  京都大学, 基礎物理学研究所, 教授 (80252576)
梅田 秀之  東京大学, 大学院・理学系研究科, 准教授 (60447357)
梶野 敏貴  国立天文台, 理論研究部, 准教授 (20169444)
住吉 光介  沼津工業高等専門学校, 教養科, 准教授 (30280720)
Keywords超新星爆発 / ニュートリノ / 状態方程式 / ブラックホール / 中性子星 / 重力波 / 元素合成 / ニュートリノ振動
Research Abstract

22年度は5月と1月に研究集会を開催し、連携を促進しつつ研究を進めた。柴田を中心とした共同研究では、現実的状態方程式、ニュートリノ冷却過程を組み込んだ数値相対論コードを構築し、さらに並列化も行った。このコードを用いて、種族III星のブラックホールへの重力崩壊や連星中性子星の合体の数値シミュレーションを実行した。球対称モデルに関しては、住吉を中心に、ニュートリノ輻射流体コードを用いて大質量星の重力崩壊現象の系統的な計算を行った。ブラックホール形成に至るケースについて、ニュートリノ観測により状態方程式をプローブする方法を確立した。爆発するケースについては、梅田らによる大質量星モデルの重力崩壊で放出されるニュートリノシグナルの系統的な計算を中里らと行った。状態方程式について、Shen EOSのデータ拡張を行ったほか、鷹野らとクラスター変分法による高温高密度核物質の状態方程式作成に向けた研究を進めた。また鈴木は菊地と共同で、球対称流体計算コードに拡散近似のニュートリノ輸送を組み込み、コアの重力崩壊開始から衝撃波が外層を伝播していく0(100)秒の進化を計算することができるようになった。一方梅田らは、観測史上最も重い星の超新星爆発ではないかと言われている超新星2007biの親星がどのようなものであったのかについて議論を行った。その結果、この超新星は電子-陽電子対生成型超新星であると考えるよりも、重力崩壊型超新星である可能性のほうが高い事を示したが、まだ不確定な要素の多く、最も重い星の進化や質量放出に関して興味深い示唆を与えるものであった。梶野らは、二次元の特殊相対論効果を取り入れた流体コードを用いてガンマ線バースト天体の候補とされるニュートリノ加熱型コラプサーモデルを構築し、ユニバーサリティーを満たす重元素(R過程元素)が生成されることを明らかにした。さらに住吉を中心にA04班と連携して、球対称ニュートリノ輻射流体計算で出現する大規模行列の性質について調査を行い、反復法による解法開発に道筋をつけた。

  • Research Products

    (47 results)

All 2011 2010 Other

All Journal Article (29 results) (of which Peer Reviewed: 27 results) Presentation (17 results) Remarks (1 results)

  • [Journal Article] Primordial Magnetic Field Effects on the CMB and Large Scale Structure2011

    • Author(s)
      Dai.G.Yamazaki, Kiyotomo Ichiki, Toshitaka Kajino, Grant J.Mathews
    • Journal Title

      Advances in Astronomy

      Volume: 2,010 Pages: 586,590

    • Peer Reviewed
  • [Journal Article] Quantum Statistical Corrections to Astrophysical Photodisintegration Rates at High Temperature2011

    • Author(s)
      G.J.Mathews, Y.Pehlivan, T.Kajino, A.B.Balantekin, M.Kusakabe
    • Journal Title

      Astrophys.J.

      Volume: 727 Pages: 10

    • DOI

      10.1088/0004-637X/727/1/10

    • Peer Reviewed
  • [Journal Article] A progenitor for the extremely luminous Type Ic supernova 2007bi2011

    • Author(s)
      T.Yoshida, H.Umeda
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 412 Pages: L78-L82

    • Peer Reviewed
  • [Journal Article] Properties of the proto-neutron star with smeared trapped neutrinos2011

    • Author(s)
      C.Y.Ryu, T.Maruyama, T.Kajino, M.K.Cheoun
    • Journal Title

      Phys.Rev.C

      Volume: 83 Pages: 018802

    • Peer Reviewed
  • [Journal Article] Neutrino reactions on Ar40 for solar and core-collapsing supernova neutrinos2011

    • Author(s)
      M.K.Cheoun, E.Ha, T.Kajino
    • Journal Title

      Phys.Rev.C

      Volume: 83 Pages: 028801

    • Peer Reviewed
  • [Journal Article] Constraining Nuclear-Matter Equations of State by Gravitational waves from Black hole-Neutron star Binaries2010

    • Author(s)
      M.Shibata, K.Kyutoku
    • Journal Title

      Prog.Theor.Phys.Supplement

      Volume: 186 Pages: 17-25

    • Peer Reviewed
  • [Journal Article] Gravitational waves from nonspinning black hole-neutron star binaries : dependence on equations of state2010

    • Author(s)
      K.Kyutoku, M.Shibata, K.Taniguchi
    • Journal Title

      Physical Review D

      Volume: 82 Pages: 044049

    • Peer Reviewed
  • [Journal Article] Exploring binary-neutron-star-merger scenario of short-gamma-ray bursts by gravitational-wave observation2010

    • Author(s)
      K.Kiuchi, Y.Sekiguchi, M.Shibata, K.Taniguchi
    • Journal Title

      Phys.Rev.Lett.

      Volume: 104 Pages: 141101

    • Peer Reviewed
  • [Journal Article] Neutrino oscillation and expected event rate of supernova neutrinos in adiabatic explosion model2010

    • Author(s)
      S.Kawagoe, T.Yoshida, T.Kajino, H.Suzuki, K.Sumiyoshi, S.Yamada
    • Journal Title

      Physical Review D

      Volume: 81 Pages: 123014(1-17)

    • Peer Reviewed
  • [Journal Article] Exploring hadron physics in black hole formations : A new promising target of neutrino astronomy2010

    • Author(s)
      K.Nakazato, K.Sumiyoshi, H.Suzuki, S.Yamada
    • Journal Title

      Physical Review D

      Volume: 81 Pages: 083009(1-6)

    • Peer Reviewed
  • [Journal Article] Impact of quarks and pions on dynamics and neutrino signal of black hole formation, in non-rotating stellar core collapse2010

    • Author(s)
      K.Nakazato, K.Sumiyoshi, S.Yamada
    • Journal Title

      Astrophysical Journal

      Volume: 721 Pages: 1284-1294

    • Peer Reviewed
  • [Journal Article] Emergence of hyperons in failed supernovae with short neutrino bursts2010

    • Author(s)
      K.Sumiyoshi, K.Nakazato, C.Ishizuka, A.Ohnishi, S.Yamada, H.Suzuki
    • Journal Title

      Nuclear Physics A

      Volume: 835 Pages: 295-302

    • Peer Reviewed
  • [Journal Article] EOS of hyperonic matter for core-collapse supernovae2010

    • Author(s)
      A.Ohnishi, K.Tsubakihara, K.Sumiyoshi, C.Ishizuka, S.Yamada, H.Suzuki
    • Journal Title

      Nuclear Physics A

      Volume: 835 Pages: 374-377

    • Peer Reviewed
  • [Journal Article] Neutrino astronomy as a probe into physics of hot and dense matter2010

    • Author(s)
      K.Nakazato, K.Sumiyoshi, H.Suzuki, S.Yamada
    • Journal Title

      American Institute of Physics Conference Proceedings

      Volume: 1238 Pages: 145-150

  • [Journal Article] Neutrino bursts from failed supernovae as a promising target of neutrino astronomy2010

    • Author(s)
      K.Sumiyoshi, K.Nakazato, H.Suzuki, S.Yamada
    • Journal Title

      Proceedings of Science (PoS, SISSA, Trieste)

      Volume: NIC XI Pages: 157

  • [Journal Article] Nucleosynthesis in High-entropy Hot Bubbles of Supernovae and Abundance Patterns of Extremely Metal-poor Stars2010

    • Author(s)
      N.Izutani, H.Umeda
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 720 Pages: L1-L4

    • Peer Reviewed
  • [Journal Article] Three-dimensional Magnetohydrodynamical Simulations of Gravitational Collapse of a 15 Msun Star2010

    • Author(s)
      T.Kuroda, H.Umeda
    • Journal Title

      The Astrophysical Journal Supplement

      Volume: 191 Pages: 439-466

    • Peer Reviewed
  • [Journal Article] Formation and Evolution of Dust in Type IIb Supernovae with Application to the Cassiopeia A Supernova Remnant2010

    • Author(s)
      Nozawa, Takaya ; Kozasa, Takashi ; Tominaga, Nozomu ; Maeda, Keiichi ; Umeda, Hideyuki ; Nomoto, Ken'ichi ; Krause, Oliver
    • Journal Title

      The Astrophysical Journal

      Volume: 713 Pages: 356-373

    • Peer Reviewed
  • [Journal Article] Neutrino reactions via neutral and charged current by quasi-particle random phase approximation (QRPA)2010

    • Author(s)
      M.K.Cheoun, E.Ha, K.S.Kim, T.Kajino
    • Journal Title

      J.Phys.

      Volume: G37 Pages: 055101

    • Peer Reviewed
  • [Journal Article] Supernovae and the Chirality of the Amino Acids2010

    • Author(s)
      R.N.Boyd, T.Kajino, T.Onaka
    • Journal Title

      Astrobiology

      Volume: 10 Pages: 561-568

    • Peer Reviewed
  • [Journal Article] New constraint on the Primordial Magnetic Field2010

    • Author(s)
      Dai.G.Yamazaki, Kiyotomo Ichiki, Toshitaka Kajino, Grant J.Mathews
    • Journal Title

      Phys.Rev.D

      Volume: 81 Pages: 023008

    • Peer Reviewed
  • [Journal Article] Growth of Cosmological Perturbation by Extra Anisotropic Stress2010

    • Author(s)
      Kazuhiko Kojima, Toshitaka Kajino, Grant J.Mathews
    • Journal Title

      JCAP

      Volume: 02 Pages: 018

    • Peer Reviewed
  • [Journal Article] Neutrino reactions on 12C by the quasiparticle random-phase approximation2010

    • Author(s)
      M.K.Cheoun, E.Ha, S.Y.Lee, K.S.Kim, W.Y.So, T.Kajino
    • Journal Title

      Phys.Rev.C

      Volume: 81 Pages: 028501

    • Peer Reviewed
  • [Journal Article] Constraint on the Neutrino Mass and Primordial Magnetic Field from sigma_82010

    • Author(s)
      Dai.G.Yamazaki, Kiyotomo Ichiki, Toshitaka Kajino, Grant J.Mathews
    • Journal Title

      Phys.Rev.D

      Volume: 81 Pages: 103519

    • Peer Reviewed
  • [Journal Article] New results on catalyzed BBN with a long-lived negatively-charged massive particle2010

    • Author(s)
      Motohiko Kusakabe, Toshitaka Kajino, Takashi Yoshida, Grant J.Mathews
    • Journal Title

      Phys.Rev.D

      Volume: 81 Pages: 083521

    • Peer Reviewed
  • [Journal Article] New Estimate for the Time-Dependent Thermal Nucleosynthesis of 180Tam in Supernova Nucleosynthesis2010

    • Author(s)
      T.Hayakawa, T.Kajino, S.Chiba, G.J.Mathews
    • Journal Title

      Phys.Rev.C

      Volume: 81 Pages: 052801

    • Peer Reviewed
  • [Journal Article] Boron synthesis in a Type Ic supernovae2010

    • Author(s)
      Nakamura, Ko, Takashi, Y., Shigeyama, T., Kajino, T.
    • Journal Title

      Astrophys.J.Lett.

      Volume: 718 Pages: 137-140

    • Peer Reviewed
  • [Journal Article] Neutrino reactions on La138 and Ta180 via charged and neutral currents by the quasiparticle random phase approximation2010

    • Author(s)
      M.K.Cheoun, E.Ha, T.Hayakawa, T.Kajino, S.Chiba
    • Journal Title

      Phys.Rev.C

      Volume: 82 Pages: 035504

    • Peer Reviewed
  • [Journal Article] Reanalysis of the (J=5) state at 592 keV 180Ta and its role in the n-process nucleosynthesis of 180Ta in supernova2010

    • Author(s)
      T.Hayakawa, P.Mohr, T.Kajino, S.Chiba, G.J.Mathews
    • Journal Title

      Phys.Rev.C

      Volume: 82 Pages: 058801

    • Peer Reviewed
  • [Presentation] Origin and Evolution of the Universe ; from the Big-Bang to the Element Genesis2011

    • Author(s)
      Kajino, T.
    • Organizer
      Sokendai Asian Winter School on Science of Structure Formation-Light, Energy, Material, and Space
    • Place of Presentation
      National Institute of Fusion Science, Toki(招待講演)
    • Year and Date
      20110215-20110218
  • [Presentation] Supernova Nucleosynthesis, Neutrino Oscillation, and Nuclear Weak Interactions2011

    • Author(s)
      Kajino, T.
    • Organizer
      French-Japanese Symposium on Nuclear Structure Problems
    • Place of Presentation
      RIKEN, Wako(招待講演)
    • Year and Date
      20110105-20110108
  • [Presentation] 球対称拡散近似ニュートリノ輸送による超新星爆発の長時間シミュレーション2011

    • Author(s)
      菊地英仁
    • Organizer
      日本物理学会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-25
  • [Presentation] 超新星ニュートリノと集団振動2011

    • Author(s)
      鈴木英之
    • Organizer
      研究会「超新星からのマルチメッセンジャー」
    • Place of Presentation
      国立天文台(招待講演)
    • Year and Date
      2011-03-02
  • [Presentation] 3次元ニュートリノ輻射輸送計算コードの開発2011

    • Author(s)
      住吉光介
    • Organizer
      研究会「次世代スーパーコンピューターによる爆発的天体現象の研究」
    • Place of Presentation
      琉球大学
    • Year and Date
      2011-02-01
  • [Presentation] A numerical challenge on the core-collapse supernovae : physics of neutrino and matter at extreme conditions2011

    • Author(s)
      K.Sumiyoshi
    • Organizer
      International Symposium "Nanoscience and Quantum Physics 2011" (nanoPHYS'11)
    • Place of Presentation
      International House of Japan, Roppongi, Tokyo, Japan
    • Year and Date
      2011-01-27
  • [Presentation] Similarity? between 3alpha --> C12+gamma and 2alpha+n --> Be9+gamma rates and their implication in SN r-process2010

    • Author(s)
      Kajino, T.
    • Organizer
      RNC Workshop on Impact of Triple-Alpha Reaction Rate on Stellar Evolution and Nucleosynthesis
    • Place of Presentation
      RIKEN Nishina Center
    • Year and Date
      20101217-20101218
  • [Presentation] Nucleosynthesis and neutrinos2010

    • Author(s)
      Kajino, T.
    • Organizer
      International Symposium on New Faces of Atomic Nuclei
    • Place of Presentation
      Okinawa Institute of Science and Technology, Okinawa(招待講演)
    • Year and Date
      20101115-20101117
  • [Presentation] Nuclear astrophysics-theory2010

    • Author(s)
      Kajino, T.
    • Organizer
      Invited talk at Workshop on the Nuclear Physics and Nuclear Astrophysics
    • Place of Presentation
      Seoul National University, Korea(招待講演)
    • Year and Date
      20101026-20101027
  • [Presentation] Nuclear Weak Interactions and Supernova Neutrino- and R-Processes2010

    • Author(s)
      Kajino, T.
    • Organizer
      3rd International Conference on Frontiers In Nuclear Structure, Astrophysics and Reactions
    • Place of Presentation
      Rhodos, Greece(招待講演)
    • Year and Date
      20100823-20100827
  • [Presentation] Nucleosynthesis in Gamma-Ray Bursts and Extremely Metal-Deficient Halo Stars2010

    • Author(s)
      Kajino, T.
    • Organizer
      24th International Nuclear Physics Conference
    • Place of Presentation
      Vancouver, Canada
    • Year and Date
      20100707-20100709
  • [Presentation] SUSY-Catalyzed Big-Bang Nucleosynthesis as a Solution of Lithium Problems.2010

    • Author(s)
      Kusakabe, Motohiko ; Kajino, Toshitaka ; Yoshida, Takashi ; Mathews, Grant
    • Organizer
      24th International Nuclear Physics Conference
    • Place of Presentation
      Vancouver, Canada
    • Year and Date
      20100707-20100709
  • [Presentation] Neutrinos from supernovae and failed supernovae2010

    • Author(s)
      Hideyuki Suzuki
    • Organizer
      11th Internaional Workshop pn Next Generation Nucleon Decay ad Neutrino Detectors
    • Place of Presentation
      富山国際会議場、富山(招待講演)
    • Year and Date
      2010-12-14
  • [Presentation] Neutrinos and dense matter in core-collapse supernovae2010

    • Author(s)
      K.Sumiyoshi
    • Organizer
      International Symposium "From Quarks to Supernovae"
    • Place of Presentation
      Atagawa Heights (Izu, Shizuoka, Japan)(招待講演)
    • Year and Date
      2010-11-30
  • [Presentation] Explosive Astrophysical Phenomena and Nucleosynthesis based on Quark Dynamics and Nuclear Structure2010

    • Author(s)
      Hideyuki Suzuki
    • Organizer
      International Symposium "From Quarks to Supernovae"
    • Place of Presentation
      Atagawa Heights (Izu, Shizuoka, Japan)
    • Year and Date
      2010-11-28
  • [Presentation] 超新星爆発と核物理・ニュートリノ: 3次元ニュートリノ輻射輸送計算コードの開発2010

    • Author(s)
      住吉光介
    • Organizer
      第2回「クォーク力学・原子核構造に基づく爆発的天体現象と元素合成」研究会
    • Place of Presentation
      東京大学
    • Year and Date
      2010-05-31
  • [Presentation] On the progenitors of GRBs2010

    • Author(s)
      梅田秀之
    • Organizer
      Deciphering the Ancient Universe with Gamma-Ray Bursts
    • Place of Presentation
      京都テルサ、京都
    • Year and Date
      2010-04-22
  • [Remarks]

    • URL

      http://aspht1.ph.noda.tus.ac.jp/bridge_a03/

URL: 

Published: 2012-07-19  

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