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Experimental study on the heating of silicate aggregates and the formation of chondrules by nebula shock

Research Project

Project/Area Number 13440156
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Petrology/Mineralogy/Science of ore deposit
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

ARAKAWA Masahiko  HOKKAIDO UNIVERSITY, Inst. Low Temp. Sci., Inst., 低温科学研究所, 助手 (10222738)

Co-Investigator(Kenkyū-buntansha) KOUUCHI Akira  HOKKAIDO UNIVERSITY, Inst. Low Temp. Sci., Prof., 低温科学研究所, 教授 (60161866)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥14,800,000 (Direct Cost: ¥14,800,000)
Fiscal Year 2003: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2002: ¥5,700,000 (Direct Cost: ¥5,700,000)
Fiscal Year 2001: ¥7,800,000 (Direct Cost: ¥7,800,000)
KeywordsChondrule / Shock wave / Solar nebula / Chondrites / Silicate aggregates / Flash heat / High speed camera / Shock tube / コンドライト阻石 / マッハ数 / 高速気流 / 液滴分裂 / 摩擦加熱 / 高速度デジタルビデオカメラ
Research Abstract

We have developed a new instrument to generate a strong shock wave with a large Mach number in gas. This instrument was consisted of a two-stage light gas gun and a small high-pressure vessel set in a sample chamber evacuated in a vacuum. Collisions among nebula gas and the dust-gas interaction in a generated shock wave were simulated with this instrument. A nylon projectile with the size of 1.6mm was launched into the high-pressure vessel filled with 1 bar air and this projectile generates a strong shock wave after it penetrates into the air. We have observed a bow shock with the Mach number larger than 9 around the projectile by using a high-speed photography, but we didn't observe any emission from the shock compressed gas and the surface of the projectile heated by gas drag. The projectile was observed to be intact without any disruption and melting after the penetration into the gas.
We have also studied a disruption experiment of a water droplet by high velocity gas flow. This study simulates a completely molten silicate droplets caused by nebula shock, which are compressed or sheared by gas drag. The disrupted silicate melts could be related to the origin of chondrules based on the evidence such as the size distribution and the characteristics of the shape. We have conducted this experiment with a water droplet whose size is 0.3 to 5mm at the condition with the Mach number from 1.01-1.12 by using a shock tube in air. The disruption was observed by a high-speed digital video and the size distribution of the disrupted droplets was analyzed. Our result shows that the disrupted droplets have an exponential relationship for the cumulative mass distribution and the slope of this exponential relation is found to depend on a Weber number (4-400)

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] Arakawa, M: "Ice-silicate fractionation among icy bodies due to the difference of impact strength between ice and ice-silicate mixture"Icarus. (In press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kouchi, A.: "Rapid Growth of Asteriods due to very Sticky Interstellar Organic Grains"Astrophys.J.Lett.. 566. 121-124 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Arakawa, M.: "Effect of direct and alternating fields on friction between ice and metals"Canadian Journal of Physics. 81. 209-216 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kudo, T.: "The role of sticky interstellar organic material in the formation of asteroids"Meteoritics & Planetary Science. 37. 1975-1983 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Arakawa, M.: "Impact experiments on porous icy-silicate cylindrical blocks and the implication for disruption and accumulation of small icy bodies"Icarus. 158. 516-531 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kato, M.: "Shock pressure attenuation in water ice at a pressure below 1 GPa"J.Geophys.Res.. 106. 17567-17578 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Arakawa, M., D.Tomizuka: "Ice-silicate fractionation among icy bodies due to the difference of impact strength between ice and ice-silicate mixture"Icarus. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Arakawa, M., V.F.Petrenko, C.Chen: "Effect of direct and alternating fields on friction between ice and metals"Canadian Journal of Physics. 81. 209-216 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kouchi, A., T.Kudo, H.Nakano, M.Arakawa, N.Watanabe, S.Sirono, M.Higa, N.Maeno: "Rapid Growth of Asteroids clue to very Sticky Interstellar Organic Grains"Astrophys.J.Lett.. 566. 121-124 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kudo, T., A.Kouchi, M.Arakawa, H.Nakano: "The role of sticky interstellar organic material in the formation of asteroids"Meteoritics & Planetary Science. 37. 1975-1983 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Arakawa, M., J.Leliwa-Kopystynski, N.Maeno: "Impact experiments on porous icy-silicate cylindrical blocks and the implication for disruption and accumulation of small icy bodies"Icarus. 158. 516-531 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kato, M., M.Higa, Y.Iijima, T.Kiyono, S.Nakagawa, M.Arakawa: "Shock pressure attenuation in water ice at a pressure below 1 GPa"J.Geophys.Res.. 106. 17567-17578 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Arakawa, M.: "Ice-silicate fractionation among icy bodies due to the difference of impact strength between ice and ice-silicate mixture"Icarus. (In press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Arakawa, M.: "Observation of crack propagation in water ice with fluid inclusion"Canadian Journal of Physics. 81. 159-166 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Arakawa, M.: "Effect of direct and alternating fields on friction between ice and metals"Canadian Journal of Physics. 81. 209-216 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Arakawa, M.: "Impact strength of porous ice-silicate mixture"Proc.36th ISAS Lunar and Planet.Symp.. 57-60 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Watanabe, N.: "The dependence of H_2CO and CH_3OH formation on temperature and thickness of H_2O-CO ice during successive hydrogenation of CO"Astrophys.J.Lett.. 588. 121-124 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Maeno, N.: "Adhesion shear theory of ice friction at low sliding velocities, combined with ice sintering"J.App.Phys.. 98. 134-139 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Nakano, H.: "Alteration of interstellar organic materials in meteorites' parent bodies : a novel route for diamond formation"Proc. The Japan academy. 78-9. 277-281 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Arakawa, M.: "Impact experiments on porous icy-silicate cylindrical blocks and the implication for disruption and accumulation of small icy bodies"Icarus. 158. 516-531 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Kudo: "The role of sticky interstellar organic material in the formation of asteroids"Meteoritics & Planetary Science. 37. 1975-1983 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kouchi, A.: "Rapid Growth of Asteriods due to very Sticky Interstellar Organic Grains"The Astrophysical Journal. 566. L121-L124 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kadono, T.: "Crack Propagation in Thin Glass Plate Caused by High Velocity Impact"Phys. Rev. E. 65. 035107(R) (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Arakawa, M.: "Impact processes of ice in the solar system"in High-Pressure Shock Compression of Solids V edited by L.Davison, Y.Horie and T.Sekine (Springer-Verlag, New York)). 199-231 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kadono, T.: "Crack Propagation in Thin Glass Plate Caused by High Velocity Impact"Phys. Rev. E.. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kato, M.: "Shock pressure attenuation in water ice at a pressure of below 1 GPa"J. Geophys. Res.. 106. 17567-17578 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Naoki Watanabe: "Measurements of conversion rates of CO to CO2 in UV induced reaction of D2O/CO amorphous ice"Astrophys. J.. 567. 651-655 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Akira Kouchi: "Rapid Growth of Asteroids Owing to Very Sticky Interstellar Organic Grains"Astrophys. J. Lett.. 566. 121-124 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kouchi, A.: "Crystallization Heat of Impure Amorphous H2O Ice"Geophys. Res. Lett.. 28. 827-830 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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