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Research of IR spectral features caused by nanoparticle surfaces and metastable crystal structure

Research Project

Project/Area Number 22654022
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Astronomy
Research InstitutionTohoku University

Principal Investigator

KIMURA Yuki  東北大学, 大学院・理学研究科, 助教 (50449542)

Co-Investigator(Renkei-kenkyūsha) SAKON Itsuki  東京大学, 大学院・理学研究科, 助教 (70451820)
Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥3,130,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥1,700,000 (Direct Cost: ¥1,700,000)
Keywordsナノ粒子 / 赤外スペクトル / 宇宙ダスト / 天体観測 / 表面 / 結晶
Research Abstract

There are a lot of unidentified infrared (UIR)features in the astronomical spectra. We assumed the reason that is characteristic physical parameters of nanoparticles, because no one ever considers the properties of nanoparticle, although cosmic dust has nanometer in size. To identify the UIR features, we constructed a new system, which is able to measure IR spectra of free frying as-grown nanoparticles. Our results showed that the free frying nanoparticles have different features compared with that in the spectra of bulk and nanoparticles embedded into a KBr pellets. UIR features will be identified based on our concept.

Report

(3 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • Research Products

    (8 results)

All 2012 2011 2010

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (6 results)

  • [Journal Article] Laboratory annealing experiments of refractory silicate grain analogs using differential scanning calorimetry2011

    • Author(s)
      Y. Kimura, J. A. Nuth III, K. Tsukamoto, C. Kaito
    • Journal Title

      Meteoritics & Planetary Science

      Volume: 46 Pages: 92-102

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Formation of polycyclic aromatic hydrocarbon grains using anthracene and their stability under UV irradiation2010

    • Author(s)
      M. Saito, I. Sakon, C. Kaito, Y. Kimura
    • Journal Title

      Earth, Planets and Space

      Volume: 62 Pages: 81-90

    • NAID

      10029015509

    • Related Report
      2011 Final Research Report 2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 赤外線継続観測に基づく新星V1280Sco周囲でのダスト形成史2012

    • Author(s)
      左近樹、酒向重行、大澤亮、下西隆、宮田隆志、高橋英則、尾中敬、野沢貴也、木村勇気、小笹隆司、藤吉拓哉、植村誠、新井彰
    • Organizer
      日本天文学会2012年春季年会
    • Place of Presentation
      龍谷大学深草キャンパス
    • Year and Date
      2012-03-21
    • Related Report
      2011 Final Research Report
  • [Presentation] 赤外線継続観測に基づく新星V1280Sco周囲でのダスト形成史2012

    • Author(s)
      左近樹、酒向重行、大澤亮、下西隆、宮田隆志、高橋英則、尾中敬、野沢貴也、木村勇気(東北大学)、小笹隆司、藤吉拓哉、植村誠、新井彰
    • Organizer
      日本天文学会2012年春季年会
    • Place of Presentation
      龍谷大学(深草キャンパス)
    • Year and Date
      2012-03-21
    • Related Report
      2011 Annual Research Report
  • [Presentation] その場観察によるナノ粒子生成過程の解明に向けて2012

    • Author(s)
      木村勇気
    • Organizer
      立命館大学・学術フロンティア公開シンポジウム「表面・界面ナノ構造の形成と制御-新奇現象の発現とその機構解明」
    • Place of Presentation
      滋賀県草津市立命館大学
    • Year and Date
      2012-03-13
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] ダストの核形成過程を実験室で観る2011

    • Author(s)
      木村勇気
    • Organizer
      第7回太陽系外惑星大研究会
    • Place of Presentation
      東京
    • Year and Date
      2011-03-09
    • Related Report
      2011 Final Research Report 2010 Annual Research Report
  • [Presentation] Experimental study of Nucleation, Coalescence and Growth of Nanoparticles2010

    • Author(s)
      Y. Kimura, K. Tsukamoto
    • Organizer
      Workshop on Interstellar Matter 2010
    • Related Report
      2011 Final Research Report
  • [Presentation] Condensation Takes Place in Far from Equilibrium Condition2010

    • Author(s)
      Y. Kimura, K. Tsukamoto, T. Maki
    • Organizer
      73rd Annual Meeting of the Meteoritical Society
    • Related Report
      2011 Final Research Report

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Published: 2010-08-23   Modified: 2016-04-21  

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