Experimental study on the relationship between evolution of stars and silicate dust

2008 Fiscal Year Final Research Report

• Project/Area Number: 16104007
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Geochemistry/Astrochemistry
• Research Institution: The University of Tokyo
• Principal Investigator: NAGAHARA Hiroko The University of Tokyo, 大学院・理学系研究科, 教授 (80172550)
• Co-Investigator(Kenkyū-buntansha): OZAWA Kazuhito 東京大学, 大学院・理学系研究科, 教授 (90160853) ; TACHIBANA Shogo 東京大学, 大学院・理学系研究科, 助教 (50361564)
• Project Period (FY): 2004 – 2008
• Keywords: 星 / ダスト / ガス / 凝縮 / ケイ酸塩

Research Abstract

原始惑星系円盤、晩期星周囲のガス中におけるダスト形成を理論的に考察し、天文観測と対比可能とするため、凝縮装置を開発し、ダスト凝縮にともなう種々のカイネティックパラメータを世界で初めて実験により決定した。その結果を用い、星周におけるダストの化学進化、ダストとガスの分離による化学分別をモデルにより考察した。

Research Products

• [Journal Article] Laboratory condensation and reaction of silicate dust. In "Cosmic Dust - Near and Far" (2009)
  • Author(s): Nagahara, H., Ozawa, K., Ogawa, R.,Tachibana, S. and Chiba, H
  • Journal Title: Th. Henning, E. Grun, J. Steinacker (eds.). ASP Conf. Ser (印刷中)
• [Journal Article] Condensation of major element during chondrule formation (2008)
  • Author(s): Nagahara, H., Kita, N., Ozawa, K. and Morishita
  • Journal Title: Geochim. Cosmochim. Acta 72 Pages: 1442-1465
• [Journal Article] 26Al-26Mgsystematics of chondrules in a primitive (2008)
  • Author(s): Kurahashi, E., Kita, N. T., Nagahara, H. and Morishita, Y.
  • Journal Title: COchondrite.Geochim. Cosmochim. Acta 72 Pages: 3865-3882
• [Journal Article] Injection of short-lived radionuclides from a faint supernova with mixing-fallback (2008)
  • Author(s): Takigawa A., Miki J., Tachibana S., Huss G. R., Tominaga N., Umeda H. and Nomoto K.
  • Journal Title: into the early solar system. Astrophys. J 688 Pages: 1382-1387
• [Journal Article] 原始惑星系円盤におけるフォルステライト蒸発の赤外スペクトルへの影響 (2007)
  • Author(s): 瀧川 晶・横山聖典・橘 省吾・永原裕子・小澤一仁
  • Journal Title: 日本惑星科学会誌遊星人 16 Pages: 128-134
• [Journal Article] 物質科学的研究・観測的研究で探る惑星系の誕生と進化 (2007)
  • Author(s): 橘 省吾
  • Journal Title: 遊星人 16 Pages: 94-98
• [Journal Article] 短寿命放射性核種存在度と超新星元素合成モデルから推定する太陽系形成環境 (2007)
  • Author(s): 三木順哉・瀧川 晶・橘 省吾・Huss G. R.
  • Journal Title: 日本惑星科学会誌遊星人 16 Pages: 135-145
• [Journal Article] Anisotropy of Mg isotopic fractionation during evaporation and (2006)
  • Author(s): Yamada, M., Tachibana, S., Nagahara, H. and Ozawa, K
  • Journal Title: Mg self-diffusion of forsterite in vacuum. Planet. Space Sci 54 Pages: 1096-1106
• [Journal Article] Petrology of ferromagnesian silicate chondrules (2006)
  • Author(s): Lauretta, D. S., Nagahara, H. and Alexander, C. M. O'D
  • Journal Title: In Meteorites and the Early Solar System II. Univ. Arizona Press Pages: 431-459
• [Journal Article] Low temperature singlen crystal reflection spectra of forsterite (2006)
  • Author(s): Suto H., Sogawa H., Tachibana S., KoikeC., Karoji H., Tsuchiyama A., Chihara H.,Mizutani K., Akedo J., Ogiso K., Fukui T.,Ohara S
  • Journal Title: Monthly Notices of the Royal Astronomical Society Main Journal 370 Pages: 1599-1606
• [Journal Article] 60Fe in chondrites : Debris from a nearby supernova in the early solar system? (2006)
  • Author(s): Tachibana S., Huss G. R., Kita N. T., Shimoda G. and Morishita Y
  • Journal Title: Astrophys. J. Letters 639 Pages: L87-90
• [Journal Article] Infrared reflection spectra of forsterite crystal (2006)
  • Author(s): Sogawa H., Koike C., Chihara H., Suto H., Tachibana S., Tsuchiyama A. and Kozasa T
  • Journal Title: Astron. Astrophys 451 Pages: 357-361
• [Journal Article] Chondrule formation and the evolution of the early solar system. J. (2006)
  • Author(s): Tachibana S
  • Journal Title: Mineral. Petrol. Sci 101 Pages: 37-47
• [Journal Article] Kinetic condensation of silicatemelt and its role in the chemical diversity ofchondrules. In Chondrites and the (2005)
  • Author(s): Nagahara, H., Ozawa, K. and Tomomura, S.
  • Journal Title: Protoplanetary Disk. ASP Conf. Ser 341 Pages: 456-468
• [Journal Article] Evaporation and condensation during (2005)
  • Author(s): Davis, A., Alexander, C. M. O'D., Nagahara, H., and Richter, F.
  • Journal Title: CAIand chondrule formation. In Chondrites and the Protoplanetary Disk. ASP Conf. Ser 341 Pages: 432-455
• [Journal Article] Constraints on the origin ofchondrules and CAIs from short-lived andlong-lived radionuclides. In Chondrites andthe Protoplanetary Disk (eds. A. N. Krot, E.R. D. Scott and B. Reipurth) (2005)
  • Author(s): Kita N. T., Huss G. R., Tachibana S., Amelin Y., Nyquist L. E. and Hutcheon I. D.
  • Journal Title: San Francisco : Astronomical Society of the Pacific Pages: 55-587
• [Journal Article] Chondrule-forming shock waves in thesolar nebula by X-ray flares. In Chondritesand the Protoplanetary Disk (eds. A. N.Krot, E. R. D. Scott and B. Reipurth) (2005)
  • Author(s): Nakamoto T., Hayashi M. R., Kita N. T. and Tachibana S.
  • Journal Title: SanFrancisco : Astronomical Society of the Pacific Pages: 883-892
• [Journal Article] Oxygen, Si, and Mn-Cr isotopes of fayalite in the oxidized Kaba CV3 chondrite (2005)
  • Author(s): Hua X., Huss G. R., Tachibana S. and Sharp T. G.
  • Journal Title: Constraints for itsformation history. Geochim. Cosmochim.Acta 69 Pages: 1333-1348
• [Presentation] Condensation experiments of Mg-rich (2009)
  • Author(s): Tachibana, S., Nagahara, H., Ozawa, K., Tamada, S. and Ogawa, R.
  • Organizer: crystalline and amorphous silicates in vacuum
  • Place of Presentation: Houston, Texas
  • Year and Date: 20090323-27
• [Presentation] Condensation anisotropy of corundum around (2009)
  • Author(s): Takigawa, A., Tachibana, S., Nagahara, H. and Ozawa, K.
  • Organizer: AGB stars and its effect on infrared spectra
  • Place of Presentation: Houston, Texas
  • Year and Date: 20090323-27
• [Presentation] Laboratory study of crystalline and amorphous silicate. Workshop (2008)
  • Author(s): Nagahara, H., Tachibana, S., Ogawa, R.,Tamada, S. and Chiba, H.
  • Organizer: AGB stars
  • Place of Presentation: Tokyo
  • Year and Date: 20081113-14
• [Presentation] Evaporation anisotropy of forsterite and its implication for dust formation environment (2008)
  • Author(s): Takigawa, A., Tachibana, S. and Nagahara, H.
  • Organizer: Workshop "AGB stars"
  • Place of Presentation: Tokyo
  • Year and Date: 20081113-14
• [Presentation] Laboratory condensation and reaction of silicate dusts (2008)
  • Author(s): Nagahara, H.
  • Organizer: Workshop "Cosmic Dust : Near and Far"
  • Place of Presentation: Heidelberg, Germany
  • Year and Date: 20080908-12
• [Presentation] Shape effects of crystalline silicate on IR spectra and anisotropic evaporation of forsterite as a possible process for shape change (2008)
  • Author(s): Takigawa, A., Tachibana, S. and Nagahara, H.
  • Organizer: Workshop "Cosmic Dust : Near and Far"
  • Place of Presentation: Heidelberg, Germany
  • Year and Date: 20080908-12
• [Presentation] Genetic relationships among types of CAIs and chondrules (2008)
  • Author(s): Nagahara, H. and Ozawa, K.
  • Organizer: 71st Annual Meeting of the Meteoritical Society
  • Place of Presentation: Matsue
  • Year and Date: 20080727-0801
• [Presentation] Non-equilibrium condensation in the Mg-Si-O system : An experimental study (2008)
  • Author(s): Tachibana, S., Nagahara, H., Ozawa, K. and Tamada, S.
  • Organizer: 71st Annual Meeting of the Meteoritical Society
  • Place of Presentation: Matsue
  • Year and Date: 20080727-0801
• [Presentation] Meteoritic and ID Pevidence of silicate dusts in the early solarnebula : a review. Workshop on Silicate Dustin Protostars (2008)
  • Author(s): Nagahara, H.
  • Organizer: Astrophysical, Experimentaland Meteoritic Link
  • Place of Presentation: Tokyo
  • Year and Date: 20080725-26
• [Presentation] Experimental constraints on silicate dust formation in protoplanetary disks : a review (2008)
  • Author(s): Tachibana S.
  • Organizer: Workshopon Silicate Dust in Protostars : Astrophysical,Experimental and Meteoritic Link
  • Place of Presentation: Tokyo
  • Year and Date: 20080725-26
• [Presentation] Injection ofshort-lived and stable nuclides from a (2008)
  • Author(s): Tachibana S.
  • Organizer: "faint" supernova into the early solar system. Goldschmidt Conference 2008
  • Place of Presentation: University of British Columbia, Vancouver
  • Year and Date: 20080713-18
• [Presentation] The role of heterogeneous condensation on dust formation in protoplanetary disc (2008)
  • Author(s): Nagahara, H. and Ozawa, K.
  • Organizer: 5th Ann. General. Meeting of Asia Oceanic Geoscience Society
  • Place of Presentation: Pusan, Korea
  • Year and Date: 20080616-19
• [Presentation] Condensation experiments in the system of Mg-Si-O and its application to dust-formation in mass-loss winds from evolved stars (2008)
  • Author(s): Tachibana, S., Tamada, S. and Nagahara, H.
  • Organizer: 5th Ann. General. Meeting of Asia Oceanic Geoscience Society
  • Place of Presentation: Pusan, Korea
  • Year and Date: 20080616-19
• [Presentation] The role of temperatures of gas and condensed phase in condensation kinetics of metallic Iron (2008)
  • Author(s): Nomura, R., Nagahara, H. and Tachibana, S.
  • Organizer: Meeting of Asia Oceanic Geoscience Society
  • Place of Presentation: Pusan, Korea
  • Year and Date: 20080616-19
• [Presentation] Solid-gas reaction experiments between forsterite and Si-rich gas (2008)
  • Author(s): Chiba, H., Tachibana, S. and Nagahara, H.
  • Organizer: 5th Ann. General. Meeting of Asia Oceanic Geoscience Society
  • Place of Presentation: Pusan, Korea
  • Year and Date: 20080616-19
• [Presentation] 不均質核形成によるダスト成長 (2008)
  • Author(s): 永原裕子・小澤一仁
  • Organizer: 日本地球惑星連合2008年大会
  • Place of Presentation: 幕張
  • Year and Date: 20080525-30
• [Presentation] Mg-Si-O系ガスからのマグネシウム珪酸塩の凝縮 (2008)
  • Author(s): 橘省吾・玉田真之介・永原裕子・小澤一仁
  • Organizer: 日本天文学会2008年春季年会
  • Place of Presentation: 東京
  • Year and Date: 20080324-27
• [Presentation] 星周フォルステライトダストの形状変化と赤外スペクトルの関係 (2008)
  • Author(s): 瀧川晶・橘省吾・永原裕子
  • Organizer: 日本天文学会2008年春季年会
  • Place of Presentation: 東京
  • Year and Date: 20080324-27
• [Presentation] Heterogeneous nucleation and growth of metal on silicates and its astrophysical implication (2008)
  • Author(s): Nagahara, H.& Ozawa, K.
  • Organizer: 39^<th> Lunar Planet. Sci. Conf
  • Place of Presentation: Houston, Texas
  • Year and Date: 20080309-14
• [Presentation] Experimental study of condensation in the system Mg-Si-O by a newly developed infrared vacuum furnace (2008)
  • Author(s): Tachibana, S., Tamada, S., Nagahara, H. and Ozawa, K.
  • Organizer: 39^<th> Lunar Planet. Sci. Conf
  • Place of Presentation: Houston, Texas
  • Year and Date: 20080309-14
• [Presentation] Effects of anisotropic evaporation of circumstellar forsterite on infrared spectra (2008)
  • Author(s): Takigawa, A., Tachibana, S. and Nagahara,H.
  • Organizer: 39^<th> Lunar Planet. Sci. Conf
  • Place of Presentation: Houston, Texas
  • Year and Date: 20080309-14
• [Presentation] Experimental study of reactionbetween forsterite and Si-rich gas (2008)
  • Author(s): Chiba, H., Tachibana, S. and Nagahara, H.
  • Organizer: 39^<th> Lunar Planet. Sci. Conf
  • Place of Presentation: Houston, Texas
  • Year and Date: 20080309-14
• [Presentation] Condensation of metallic iron : the role of temperature s of gas and condensed phase (2008)
  • Author(s): Nomura, R., Nagahara, H. and Tachibana, S.
  • Organizer: 39^<th> Lunar Planet. Sci. Conf
  • Place of Presentation: Houston, Texas
  • Year and Date: 20080309-14
• [Presentation] A mixing-fallback supernova as a possible source of short-lived radionuclides in the early solar system. Workshop on the Chronology of (2007)
  • Author(s): Tachibana S., Takigawa A., Miki J. and Yoshida T.
  • Organizer: Meteorites and the Early Solar System
  • Place of Presentation: Sheraton Kauai Resort, Kauai
  • Year and Date: 20071105-07
• [Presentation] フォルステライトと金属鉄の凝縮カイネティクスと珪酸塩/金属化学分別 (2007)
  • Author(s): 永原裕子
  • Organizer: 日本鉱物科学会2007年会
  • Place of Presentation: 東京
  • Year and Date: 20070923-24
• [Presentation] Kinetics of condensation and growth of silicate and metal dusts, and its implication to chemical heterogeneity in the protosolar disc (2007)
  • Author(s): Nagahara, H. and Ozawa, K.
  • Organizer: 70th Ann. Meeting Met. Soc.
  • Place of Presentation: Tucson, Arizona
  • Year and Date: 20070813-17
• [Presentation] Isotopicfractionation of iron during kineticevaporation of metallic iron (2007)
  • Author(s): Tachibana, S., Nagahara, H., Ozawa, K. and Yamada, M.
  • Organizer: 70th Ann. Meeting Met. Soc.
  • Place of Presentation: Tucson, Arizona
  • Year and Date: 20070813-17
• [Presentation] Condensation kinetics of forsterite and metal and chemical fractionation in the proto Solar Nebula (2007)
  • Author(s): Nagahara, H. and Ozawa, K.
  • Organizer: 40^<th> Lunar Planet. Sci. Conf.
  • Place of Presentation: Houston, Texas
  • Year and Date: 20070323-27
• [Presentation] Experimenta condensation of metallic iron at controlled supersaturation. (2007)
  • Author(s): Ikeda, Y., Nagahara, H., Ozawa, K. and Tachibana, S.
  • Organizer: 38th Lunar Planet. Sci. Conf.
  • Place of Presentation: Houston, Texas
  • Year and Date: 20070312-16
• [Presentation] Anisotropic evaporation of forsterite in hydrogen gas (2007)
  • Author(s): Yokoyama, M., Takigawa, A., Tachibana, S., Nagahara, H., Ozawa, K.
  • Organizer: 38th Lunar Planet. Sci.
  • Place of Presentation: Houston, Texas
  • Year and Date: 20070312-16
• [Presentation] 60Fe-60Ni systems inferromagnesian chondrules in leastequilibrated ordinary chondrites (2007)
  • Author(s): Tachibana S., Huss G. and Rnagashima K.
  • Organizer: 38th Lunar Planet. Sci. Conf.
  • Place of Presentation: Houston, Texas
  • Year and Date: 20070312-16
• [Presentation] Evolution of for sterite and metallic iron dust in circumstellar discs. 2007 Europ. Geosci (2007)
  • Author(s): Nagahara, H. and Ozawa, K.
  • Organizer: Union General Assembly
  • Place of Presentation: Vienna, Austria20070415-20
  • Year and Date: 20070000
• [Presentation] Anisotropic evaporation of forsterite in protoplanetary discs and its effects on infrared spectra (2007)
  • Author(s): Takigawa, A., Yokoyama, M., Tachibana, S., Nagahara, H. and Ozawa, K.
  • Organizer: 70th Ann. Meeting Met. Soc.
  • Place of Presentation: Tucson, Arizona
  • Year and Date: 20070000
• [Presentation] Melt condensation for the origin ofchondrules in ordinary chondrites inferredfrom bulk chemical composition andmass-dependent oxygen isotopicfractionation. (2006)
  • Author(s): Nagahara, H., Kita, N. T. and Ozawa, K.
  • Organizer: 69th Ann. Meeting Meteorit.Society
  • Place of Presentation: Zurich, Switzerland
  • Year and Date: 20060806-11
• [Presentation] Experimental study of kinetic condensation of metallic iron under controlled supersaturation (2006)
  • Author(s): Tachibana, S., Ikeda, Y., Nagahara, H., Ozawa, K. and Yamada, M.
  • Organizer: 69th Ann. Meeting Meteoritical Society
  • Place of Presentation: Zurich, Switzerland
  • Year and Date: 20060806-11
• [Presentation] Evaporation and condensation kinetics for minerals and silicate melt (2006)
  • Author(s): Nagahara, H.
  • Organizer: 19thGeneral Meeting of the International Mineralogical Association
  • Place of Presentation: Kobe
  • Year and Date: 20060723-28
• [Presentation] Evaporation anisotropy of olivine (2006)
  • Author(s): Matsumoto, N., Nagahara, H., Ozawa, K. and Tachibana, S.
  • Organizer: 19th General Meeting of the International Mineralogical Association
  • Place of Presentation: Kobe
  • Year and Date: 20060723-28
• [Presentation] Evaporation of forsterite in vacuum : anisotropy in rates and Mg isotopic mass fractionation (2006)
  • Author(s): Yamada, M., Tachibana, S., Nagahara, H., Ozawa, K. and Matsumoto, N.
  • Organizer: 19thGeneral Meeting of the International Mineralogical Association
  • Place of Presentation: Kobe
  • Year and Date: 20060723-28
• [Presentation] Condensation of forsterite and metallic iron around evolved and young stars (2006)
  • Author(s): Nagahara, H., Ozawa, K., Ikeda, Y. and Tachibana, S.
  • Organizer: The 37th Lunar and Planetary Science Conference
  • Place of Presentation: Houston
  • Year and Date: 20060300
• [Presentation] Condensation of forsterite and metallic iron around evolved and young stars (2006)
  • Author(s): Nagahara, H., Ozawa, K., Ikeda, Y. and Tachibana, S.
  • Organizer: 37th Lunar Planet Sci. Conf.
  • Place of Presentation: Tucson, Arizona
  • Year and Date: 20060000
• [Presentation] Systematic oxygen isotopic variations among chondrules from the least equilibrated ordinary chondrites (2006)
  • Author(s): Kita, N. T., Nagahara, H., Tomomura, S., Tachibana, S. and Valley, J. W.
  • Organizer: 37th Lunar Planet Sci. Conf.
  • Place of Presentation: Tucson, Arizona
  • Year and Date: 20060000
• [Presentation] Experimental condensation of crystalline magnesium-rich silicates (2006)
  • Author(s): Ogawa, R., Nagahara, H., Ozawa, K. and Tachibana, S.
  • Organizer: 37th Lunar Planet Sci. Conf.
  • Place of Presentation: Houston, Texas
  • Year and Date: 20060000
• [Presentation] Constraints on cooling rates of chondrules from metal-troilite assemblages (2006)
  • Author(s): Tachibana, S., Nagahara, H. and Mizuno, K.
  • Organizer: 37th Lunar Planet Sci. Conf.
  • Place of Presentation: Houston
  • Year and Date: 20060000
• [Presentation] olution of CAIs and CaAl-rich chondrulesand ferromagnesian chondrules throughequilibrium and disequilibriumcondensation (2005)
  • Organizer: 28th Met. Soc. Meeting.,Tenessee Astrophysics andCosmology
  • Place of Presentation: University of Tokyo, Tokyo
  • Year and Date: 20051108-11,20050900
• [Presentation] The role of condensation kinetics of silicate melt on the chemical variation of chondrules (2005)
  • Author(s): Nagahara, H., Ozawa, K. and Tomomura, S.
  • Organizer: 29th Antarct. Met. Symp
  • Year and Date: 20050500
• [Book] 太陽系内の惑星と生命 (2008)
  • Author(s): 永原裕子
  • Publisher: ニュートンムック未解決の天文学
• [Book] 惑星地質学 (2008)
  • Author(s): 橘省吾
  • Publisher: 東京大学出版会
• [Book] 太陽系と惑星 (2007)
  • Author(s): 橘省吾
  • Publisher: 日本評論社
• [Remarks] 研究室見学受け入れ水戸二高地学部・SSHクラス35名(2009.3.21)
• [Remarks] 女子中高生夏の学校2008150名
• [Remarks] 茨城県高校生冬季天体観測合宿「実験室から宇宙を覗いてみよう」180 名
• [Remarks] 東京大学創立130周年記念事業公開講座『異星の踏査ー「アポロ」から「はやぶさ」へ』30 名
• [Remarks] 高校生・大学生のための地球惑星科学公開シンポジウム「実験室から探る太陽系創世記 : 惑星物質科学の最前線」65名
• [Remarks] 第7回地球システム・地球進化ニューイヤースクール「太陽系の誕生・進化を実験室からさぐる」120 名(2009.1.10)
• [Remarks] 第2回日本地球化学会ショートコース「宇宙化学・惑星化学」 50 名
• [Remarks] 日本真空展一般講演会 「実験室でさぐる太陽系と星たち」 80 名
• [Remarks]
  • URL: http://www-sys.eps.s.u-tokyo.ac.jp/member/nagahara.html
• [Remarks]
  • URL: http://www-sys.eps.s.u-tokyo.ac.jp/~tachi/research.html