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Thermal history at the stages of molecular clouds to planet formation with the use of crystallization of dust as a tool

Research Project

Project/Area Number 16340056
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionHokkaido University

Principal Investigator

YAMAMOTO Tetuo  Hokkaido Univ., Inst.Low Temperature Sci., Prof., 低温科学研究所, 教授 (10126196)

Co-Investigator(Kenkyū-buntansha) HIRAHARA Yasuhiro  Nagoya Univ., Grad.School of Env.Studies, Assoc.Prof, 大学院環境学研究科, 助教授 (30252224)
KAITO Chihiro  Ritsumeikan UNiv., Fac.of Sci. & Eng., Prof., 理工学部, 教授 (80027812)
KOUCHI Akira  Hokkaido Univ., Inst.Low Temperature Sci., Prof., 低温科学研究所, 教授 (60161866)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥15,700,000 (Direct Cost: ¥15,700,000)
Fiscal Year 2006: ¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2005: ¥5,200,000 (Direct Cost: ¥5,200,000)
Fiscal Year 2004: ¥7,400,000 (Direct Cost: ¥7,400,000)
Keywordscrystallization / amorphous / cosmic dust / comet / thermometer / evolution of matter in space
Research Abstract

The project carries out theoretical and experimental studies of thermal history at the stages of molecular clouds to planet formation with the use of crystallization of dust as a tool. Focuses are placed on 1) analyses of crystalline structure of dust formed in the controlled conditions and measurements of infrared spectra; 2) measurements and derivation of key parameters of crystallizations such as activation energies of crystallization and diffusion of molecules, 3) study of elementary processes of crystalline nucleation and growth, 4) formulation of crystallization conditions in astrophysical environment, and 5) comparison with observations.
A system of dust formation simulating circumstellar conditions and the analysis of its crystalline structure for 1) is constructed in a lab of Ritsumeikan University. in the study 2), analyses of the experiment of crystallization of melts of silicate composition the levitation was carried out. We derived activation energies of crystallization and diffusion of molecules from the analysis and modeling of the experiment. For 3) and 4), we found out a novel mechanism of nonthermal crystallization of silicate and confirmed it to work by the experiment. We carries out modeling of a debris dust disk around a young main-sequence star beta PiC and dust in a star-forming region Orion nebula for 5).

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (29 results)

All 2007 2006 2005 2004

All Journal Article (29 results)

  • [Journal Article] Numerical Simulation of Dust Aggregate Collisions : I Compression and Disruption of Two-Dimensional Aggregates2007

    • Author(s)
      K.Wada
    • Journal Title

      Astrophysical Journal (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Numerical Simulation of Dust Aggregate Collisions : I. Compression and Disruption of Two-Dimensional Aggregates2007

    • Author(s)
      K.Wada, H.Tanaka, T.Suyama, H.Kimura, T.Yamamoto
    • Journal Title

      Astrophysical Journal (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Theory of energy dissipation in a viscoelastic body under time-dependent stress2007

    • Author(s)
      T.Yamamoto
    • Journal Title

      Advances in Space Research, Available online 13 November (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Momentum Transfer to Fluffy Dust Aggregates from Stellar Wind2006

    • Author(s)
      T.Minato
    • Journal Title

      Astronomy and Astrophysics 452

      Pages: 701-707

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] First 2-micron imaging polarimetry of beta Pictoris2006

    • Author(s)
      M.Tamura
    • Journal Title

      Astrophysical Journal 641

      Pages: 1172-1177

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Momentum Transfer to Fluffy Dust Aggregates from Stellar Wind.2006

    • Author(s)
      T.Minato, M.Koehler, H.Kimira, I.Mann, T.Yamamoto
    • Journal Title

      Astronomy and Astrophysics 452

      Pages: 701-707

    • NAID

      120000958377

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] First 2-micron imaging polarimetry of beta Pictoris.2006

    • Author(s)
      M.Tamura, N.Fukagawa, H.Kimura, T.Yamamoto, H.Suto, L.Abe
    • Journal Title

      Astrophysical Journal 641

      Pages: 1172-1177

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Momentum Transfer to Fluffy Dust Aggregates from Stellar Wind2006

    • Author(s)
      T.Minato
    • Journal Title

      Asronomy and Astrophysics 452

      Pages: 701-707

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Thermal desorption of Na in meteoroids-Dependence on perihelion distance of meteor showers2006

    • Author(s)
      T.Kasuga
    • Journal Title

      Astron. Astrophys 453

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Near-infrared polarization images of the Orion Nebula2006

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

      Astrophysical Journal 649

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Laboratory analogy of crystalline enstatite grain formation in plasma field2006

    • Author(s)
      M.Kurumada
    • Journal Title

      Planet. Space Science 54

      Pages: 617-620

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A Mechanism of Crystallization of Cometary Silicates2006

    • Author(s)
      T.Yamamoto
    • Journal Title

      Highlights in Astronomy (印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Momentum Transfer to Fluffy Dust Aggregates from Stellar Wind2006

    • Author(s)
      T.Minato
    • Journal Title

      Asronomy and Astrophysics (印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Metallic aundances of 2002 Leonid meteoroids in two dusttrails Formed in different epochs2006

    • Author(s)
      T.Kasuga
    • Journal Title

      Astrophysical Journal 638

      Pages: 1176-1179

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A mechanism of crystallization of cometary silicates2005

    • Author(s)
      T.Yamamoto
    • Journal Title

      Highlights of Astronomy 13

      Pages: 522-524

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Direct observation of crystallization of amorphous Mg-bearing silicate grains to Mg2SiO4 (forsterite)2005

    • Author(s)
      K.Kamitsuji
    • Journal Title

      Astronomy and Astrophysics 436

      Pages: 165-169

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Laboratory production of magnesium sulfide grains and their characteristic infrared spectra due to shape2005

    • Author(s)
      Y.Kimura
    • Journal Title

      Astronomy and Astrophysics 442

      Pages: 507-512

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] A mechanism of crystallization of cometary silicates2005

    • Author(s)
      T.Yamamoto, T.Chigai
    • Journal Title

      Highlights of Astronomy Vol. 13

      Pages: 522-524

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Direct observation of crystallization of amorphous Mg-bearing silicate grains to Mg2SiO4 (forsterite)2005

    • Author(s)
      K.Kamitsuji, T.Sato, H.Suzuki, C.Kaito
    • Journal Title

      Astronomy and Astrophysics 436

      Pages: 165-169

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Laboratory production of magnesium sulfide grains and their characteristic infrared spectra due to shape2005

    • Author(s)
      Y.Kimura, M.Kurumada, K.Tamura, C.Koike, H.Chihara, C.Kaito
    • Journal Title

      Astronomy and Astrophysics 442

      Pages: 507-512

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Crystalline Mg2SiO4 and amorphous Mg-bearing silicate grain formation by coalescence and growth2005

    • Author(s)
      K.Kamitsuji
    • Journal Title

      Asronomy and Astrophysics 429

      Pages: 205-208

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Near-infrared photometric monitoring of the pre-main-sequence object KH 15D2005

    • Author(s)
      N.Kusakabe
    • Journal Title

      Astrophysical Journal 632

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Direct observation of crystallization of amorphous Mg-bearing silicate grains to Mg2SiO4 (forsterite)2005

    • Author(s)
      K.Kamitsuji
    • Journal Title

      Astronomy & Astrophysics 436

      Pages: 165-169

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A Mechanism of Crystallization of Cometary Silicates2005

    • Author(s)
      T.Yamamoto
    • Journal Title

      Highlights in Astronomy (in print)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] New rate constants of hydrogenation of CO on H_2O-CO ice surface2005

    • Author(s)
      Z.Awad
    • Journal Title

      Astrophysical Journal 626(in print)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Metallic aundances of the 2002 Leonid meteor deduced from the High-Definition TV spectra in visual-ultraviolet region2005

    • Author(s)
      T.Kasuga
    • Journal Title

      Astronomy and Astrophysics (in print)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Theory of Energy Dissipation in a Viscoelastic Body under Time-dependent Stress2005

    • Author(s)
      T.Yamamoto
    • Journal Title

      Advances in Space Research (in print)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Direct observation of thermal alteration of mixed film of Ge and SiO2005

    • Author(s)
      C.Kaito
    • Journal Title

      Thin Solid Films (in print)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Momentum Transfer to Dust from the Solar Wind2004

    • Author(s)
      T.Minato
    • Journal Title

      Astronomy and Astrophysics 424

    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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