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Homogeneous nucleation of metallic iron in circumstellar environments

Research Project

Project/Area Number 25610037
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Astronomy
Research InstitutionHokkaido University

Principal Investigator

TACHIBANA Shogo  北海道大学, 理学(系)研究科(研究院), 准教授 (50361564)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords金属鉄 / ダスト / 晩期型星 / 原始惑星系円盤 / 均質核形成
Outline of Final Research Achievements

Dust grains form in circumstellar environments, and play important roles in star formation, planetary system formation, and galactic chemical evolution. It is important to understand the kinetic aspect of dust formation processes, especially the vapor growth kinetics of dust. In this study, we developed a new vacuum furnace to simulate homogeneous nucleation and growth of metallic iron dust in circumstellar environments.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (7 results)

All 2015 2014 2013

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (3 results) (of which Invited: 3 results) Book (1 results)

  • [Journal Article] Evaporation and condensation kinetics of corundum: the origin of the 13 μm feature of oxygen-rich agb stars2015

    • Author(s)
      Takigawa A., Tachibana S., Nagahara H., and Ozawa K.
    • Journal Title

      Astrophys. J. Supplement

      Volume: 218 Issue: 1 Pages: 1-17

    • DOI

      10.1088/0067-0049/218/1/2

    • NAID

      120005668070

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Experimental Studies on Dust Formation in Space2014

    • Author(s)
      Tachibana S. and Takigawa A.
    • Journal Title

      Proceedings of Science

      Volume: LCDU2013 Pages: 46-46

    • Related Report
      2013 Research-status Report
  • [Journal Article] Morphology and crystal structures of solar and presolar Al2O3 in unequilibrated ordinary chondrites2014

    • Author(s)
      Takigawa, A., Tachibana, S., Huss, G. R., Nagashima, K., Makide, K., Krot , N. K., Nagahra, H.
    • Journal Title

      Geochimica Cosmochimica et Acta

      Volume: 124 Pages: 309-327

    • DOI

      10.1016/j.gca.2013.09.013

    • Related Report
      2013 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 太陽系の進化をさぐる物質科学:「はやぶさ2」サンプルリターン・室内実験2014

    • Author(s)
      橘省吾
    • Organizer
      首都大学東京研究環シンポジウム:宇宙の化学進化2014
    • Place of Presentation
      首都大学東京
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Experimental Studies on Dust Formation in Space2013

    • Author(s)
      Tachibana S.
    • Organizer
      The Life Cycle of Dust in the Universe
    • Place of Presentation
      Taipei, Taiwan
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] 初期太陽系化学進化:隕石の化学的多様性と地球型惑星2013

    • Author(s)
      橘省吾
    • Organizer
      理論天文学研究会2013
    • Place of Presentation
      湯河原
    • Related Report
      2013 Research-status Report
    • Invited
  • [Book] 宇宙と生命の起源2 ~素粒子から細胞へ2014

    • Author(s)
      小久保英一郎・嶺重慎
    • Total Pages
      256
    • Publisher
      岩波書店
    • Related Report
      2014 Annual Research Report

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Published: 2014-07-25   Modified: 2019-07-29  

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