New processes that determine the lifetime of dust disks around exoplanets

2008 Fiscal Year Final Research Report

• Project/Area Number: 19540234
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Astronomy
• Research Institution: Hokkaido University
• Principal Investigator: YAMAMOTO Tetsuo Hokkaido University, 低温科学研究所, 教授 (10126196)
• Co-Investigator(Kenkyū-buntansha): KAITO Chihiro 立命館大学, 理工学部, 教授 (80027812) ; HIRAHARA Yasuhiro 名古屋大学, 環境学研究科, 准教授 (30252224)
• Project Period (FY): 2007 – 2008
• Keywords: 太陽系外惑星 / 原始惑星系円盤 / ダスト / 物質進化

Research Abstract

惑星系ダスト円盤の寿命やそこでの種々の物理過程を明確にするため, 以下の研究を行った.
(1) 残骸円盤におけるダスト集積の理論
(2) ダストアグリゲートの衝突シミュレーション
(3) 電子線照射によるシリケートダストの結晶化
(4) 低温結晶化の実験と理論
(5) 結晶シリケート粒子の蒸発実験
その結果, 汎用性をもつ, 残骸円盤におけるダスト集積の解析的理論の構築, 従来の常識を破る低温結晶化の機構と宇宙物理学へのその応用, ダスト衝突によるダストの付着成長/破壊の条件の解明と微惑星への成長への含意, 等についての研究を展開した.

Research Products

• [Journal Article] Ice sublimation of dust particles and their detection in the outer solar system Earth (2009)
  • Author(s): H. Kobayashi, H. Kimura, S. Yamamoto, S. Watanabe,& T. Yamamoto
  • Journal Title: Planets, Space 61 Pages: 1-5
• [Journal Article] Low-temperature crystallization of thin silicate layer on crystalline Fe dust (2009)
  • Author(s): C. Kaito, A. Kumamoto, Yoshio Saito,& Ryoichi Ono
  • Journal Title: Earth Planets Space 61 Pages: 1-3
• [Journal Article] Numerical Simulation of Dust Aggregate Collisions.II.Compression and Disruption of Three-Dimensional Aggregates in Head-On Collisions (2008)
  • Author(s): Wada, K., Tanaka, H., Suyama, T., Kimura, H.,& Yamamoto, T.
  • Journal Title: ApJ 667 Pages: 1296-1308
• [Journal Article] Mid-infrared spectra of cometary dust : The evasion of its silicate mineralogy (2008)
  • Author(s): Kimura, H., Chigai, T,& Yamamoto, T.
  • Journal Title: A&A 482 Pages: 305-307
• [Journal Article] Infrared Spectra of Dust Aggregates in Cometary Comae : Calculation with Olivine Formed by Exothermic Chemical Reactions (2008)
  • Author(s): Kimura, H., Chigai, T.& Yamamoto, T.
  • Journal Title: ApJ 111 Pages: 1-7
• [Journal Article] A New method of evaluation of melt/crystal interfacial energy and activation energy of diffusion (2008)
  • Author(s): Tanaka, K.K., Yamamoto, T., Nagashima, K.,& Tsukamoto, K.
  • Journal Title: Journal of Crystal Growth 310 Pages: 1281-1286
• [Journal Article] Analytic Model of Upper tropospheric clouds in the tropical Hadley cell (2008)
  • Author(s): Tanaka, K.K., Yamamoto, T., Watanabe, S.& Nakajima, K.
  • Journal Title: Earth, Planets, Space 60 Pages: 219-228
• [Journal Article] Production of refractory-metal ultrafine particles by gas evaporation method and their surface oxide layer (2008)
  • Author(s): Yuki Kimura & Kaito, C.
  • Journal Title: Surface & Coatings Technology 202 Pages: 4159-4162
• [Journal Article] Characteristic low-temperature crystallization of amorphous Mg-bearing silicate grains under electron irradiation (2008)
  • Author(s): Kimura, Y., Miyazaki, Y., Kumamoto, A., Saito, M.& Kaito, C.
  • Journal Title: ApJ 680 Pages: L89-L92
• [Journal Article] Direct observation of MoO2 crystal growth from amorphous MoO3 film (2008)
  • Author(s): Nina, K., Kimura, Y., Yokoyama, K., Kido, O., Binyo, G.,& Kaito, C.
  • Journal Title: Physica E 40 Pages: 2995-2998
• [Journal Article] Structural alterations of carbon particles in saturated water vapor (2008)
  • Author(s): Kaito, C., Shintaku, M., Sakao, R., Kumamoto, A, Saito, M., Kimura, Y. Ohyagi, S., Morikawa, S.& Suzuki, H.
  • Journal Title: Jpn.J. Applied Phys. 47 Pages: 6588-6591
• [Journal Article] Morphological Alteration & Structure of ZnO Particles Produced in Electric Field (2008)
  • Author(s): C. Kaito, Y. Kinuta, H. Suzuki, S. Adachi, A. Kumamoto, Y. Saito,& Y. Kimura
  • Journal Title: J.Phys.Soc.Jpn. 77 Pages: 094708-1-4
• [Journal Article] EXPERIMENTAL DEMONSTRATION OF CONDENSATION OF Mg-BEARING SILICATE GRAINS AROUND EVOLVED STARS (2008)
  • Author(s): Y. Kimura, S. Sasaki, H. Suzuki, A. Kumamoto, M. Saito,& C. Kaito
  • Journal Title: ApJ 684 Pages: 1496-1501
• [Journal Article] POSSIBLE DRIVING FORCE BEHIND FORMATION OF COSMIC CARBYNE CRYSTALS (2008)
  • Author(s): Y. Kimura & C. Kaito
  • Journal Title: ApJ 685 Pages: L83-L86
• [Journal Article] Growth of Functional FeTi Clusters Covered with Carbon Layer (2008)
  • Author(s): Chihiro Kaito, Akihito Kumamoto, Ryoichi Ono, Yoshio Saito,& Shigeru Morikawa
  • Journal Title: Research Letters in Nanotechnology Volume Article ID 734940 Pages: 3
• [Journal Article] Theory of Energy Dissipation in a Viscoelastic Body under Time-dependent Stress Adv (2007)
  • Author(s): Yamamoto, T., Minato, T.
  • Journal Title: Space Res. 39 Pages: 472-476
• [Journal Article] Numerical simulation of dust aggregate collisions.I.Compression and disruption of two-dimensional aggregates (2007)
  • Author(s): Wada, K., Tanaka, H., Suyama, T., Kimura, H.&, Yamamoto, T.
  • Journal Title: ApJ 661 Pages: 320-333
• [Journal Article] Relationship between Morphology and Spectra Revealed by Difference in Magnesium Content of Spinel Particles (2007)
  • Author(s): Saito, M., Kurumada, M.& Kaito, C.
  • Journal Title: Advances in Geosciences Vol.7 : Planetary Science(PS) Pages: 133-142
• [Journal Article] Production of Metallic Particles Covered with Insulator Layer (2007)
  • Author(s): Katsuyama, T., Kumamoto, A., Suzuki, H., Kido, O, Saito, Y.,& Kaito, C.
  • Journal Title: Jpn.J.Appl.Phys. 46,No.6A Pages: 3690-3693
• [Journal Article] Growth of Pt clusters from Mixture Film of Pt-C and Dynamics of Pt Clusters (2007)
  • Author(s): Shintaku, M., Kumamoto, A., Suzuki, H.,& Kaito, C
  • Journal Title: Jpn.J.Appl.Phys. 46,No.6A Pages: 3687-3689
• [Journal Article] Direct observation of the Crystallization of Carbon-Coated Mg bearing silicate (2007)
  • Author(s): Kaito, C., Sasaki, S., Miyazaki, Y., Kumamoto, A., Kurumada, M.. Yokoyama, K., Saito, M., Kimura, Y.,& Suzuki, H.
  • Journal Title: Advances in Geosciences Vol.7 : Planetary Science(PS) Pages: 125-131
• [Journal Article] Formation of CaTiO3 Crystalline Dust in Laboratory (2007)
  • Author(s): Yokoyama, K., Kimura, Y., Kido, O., Kurumada, M., Kumamoto, A.& Kaito, C
  • Journal Title: Advances in Geosciences Vol.7 : Planetary Science(PS) Pages: 115-123
• [Journal Article] New Method of Producing Titanium Carbide, Monoxide and Dioxide Grains in Laboratory (2007)
  • Author(s): Kumamoto, A., Kurumada, M., Kimura, Y.,& Kaito, C.
  • Journal Title: Advances in Geosciences Vol.7 : Planetary Science(PS) Pages: 93-99
• [Journal Article] Formation of Alumina Nanoparticles in Plasma (2007)
  • Author(s): Kurumada, M.& Kaito, C
  • Journal Title: Advances in Geosciences Vol.7 : Planetary Science(PS) Pages: 69-77
• [Journal Article] Exothermic chemical reactions can drive nonthermal crystallization of amorphous silicate grains (2007)
  • Author(s): Kaito, C., Miyazaki, Y., Kumamoto, A.& Kimura, Y.
  • Journal Title: Astrophysical Journal 666 Pages: L57-L60
• [Journal Article] A New Method for Producing Fine Platinum Particles (2007)
  • Author(s): Kumamoto, A.& Kaito, C.
  • Journal Title: Japanese Journal Applied Physics 46,No.10A Pages: 6906-6907
• [Journal Article] Structural Alteration of Nanostructure Carbon Particles Carrying Pt Clusters in H2 and O2 Gases (2007)
  • Author(s): Kaito, C., Ono, R., Sakao, R., Kumamoto, A., Saito, M., Kimura, Y.& Ohyagi, S.
  • Journal Title: Japanese Journal of Applied Physics 46,No.46 Pages: L1141-1142
• [Journal Article] An Observation of the Gravitational Acceleration generated by A Magnetic Force by means of Bold's Pendulim (2007)
  • Author(s): Nishio, N., Saito, Y., Yoshimoto, N,& Kaito, C.
  • Journal Title: Japanese Journal of Applied Physics Education 31,No.2 Pages: 19-24
• [Journal Article] Effect of absorption on light scattering by aggromerated debris particles J. Quantitive Spectroscopy & Radiative Transfer
  • Author(s): E. Zubko, H. Kimura, Y. Shkuratov, K. Muinonen, T. Yamamoto, H. Okamoto,& G. Videen
  • Journal Title: (in press)
• [Journal Article] Dust ring formation due to sublimation of dust grains drifting radially inward by the Poynting-Robertson drag : An analytic model Icarus
  • Author(s): H. Kobayashi, S. Watanabe, H. Kimura,& T. Yamamoto
  • Journal Title: (in press)
• [Journal Article] Nonthermal crystallization of amorphous silicate in comets Earth
  • Author(s): T. Yamamoto, T. Chigai, H. Kimura,& K.K. Tanaka
  • Journal Title: Plantes, Space (in press)
• [Journal Article] Structural Alteration of Carbon Particle in Saturated Water Vapor
  • Author(s): Kaito, C., Shintaku, M., Sakao, R., Kumamoto, A., Saito, M., Kimura, Y., Oyagi, S., Morikawa, S.,& Suzuki, H.
  • Journal Title: Japanese Journal of Applied Physics (in press)
• [Journal Article] Characteristic Low Temperature Crystallization of Amorphous Mg-Bearing Silicate Grains Under Electron Irradiation
  • Author(s): Kimura,Y., Miyazaki,Y.,Kumamoto,A.,Saito,M.,& Kaito,C.
  • Journal Title: Astrophysical Journal (in press)
• [Journal Article] Experimental Demonstration of Condensation of Mg-Bearing Silicate Grains Around Evolved Stars
  • Author(s): Kimura, Y. Sasaki, Y., Suzuki, H., Kumamoto, A., Saito, M.& Kaito, C.
  • Journal Title: Astrophysical Journal (in press)
• [Presentation] Laboratory experiments on the evaporation of amorphous and crystalline grains (2009)
  • Author(s): C. Kaito & A. Kumamoto
  • Organizer: The 2nd Subaru International Conference Keauhou
  • Place of Presentation: Hawaii
  • Year and Date: 20090309-12
• [Presentation] Silicon oxide formation in hydrogen or carbon monoxide gases (2009)
  • Author(s): A. Kumamoto & C. Kaito
  • Organizer: The 2nd Subaru International Conference Keauhou
  • Place of Presentation: Hawaii
  • Year and Date: 20090309-12
• [Presentation] Physical processes of dust aggregates in protoplanetary disks The 2nd Subaru International Conference (2009)
  • Author(s): T. Yamamoto
  • Organizer: Exoplanets and Disks-Their Formation and Diversity-
  • Place of Presentation: Keauhou, Hawaii
  • Year and Date: 2009-03-10
• [Presentation] アモルファスシリケイトの低温結晶化過程 (2008)
  • Author(s): 田中今日子, 山本哲生
  • Organizer: 日本惑星科学会秋季講演会
  • Place of Presentation: 九州大学
  • Year and Date: 20081101-03
• [Presentation] デブリ円盤における衝突の効果-惑星形成時の衝突による質量損失- (2008)
  • Author(s): 小林浩, 田中秀和, 山本哲生
  • Organizer: 日本惑星科学会秋季講演会
  • Place of Presentation: 九州大学
  • Year and Date: 20081101-03
• [Presentation] 星雲衝撃波に伴う過飽和珪酸塩ダスト蒸気の生成 : 凝縮物のサイズと形態の多様性 (2008)
  • Author(s): 三浦均, 田中今日子, 山本哲生, 中本泰史, 野澤純, 塚本勝男, 山田淳也
  • Organizer: 日本惑星科学会秋季講演会
  • Place of Presentation: 九州大学
  • Year and Date: 20081101-03
• [Presentation] Direct observation on the structural alteration of dusts under low energy He+ irradiation (2008)
  • Author(s): C. Kaito, R. Ono, A. Kumamoto, Y. Saito,& C. Koike
  • Organizer: Cosmic Dust Near & Far
  • Place of Presentation: Heidelberg
  • Year and Date: 20080908-12
• [Presentation] Atmosphere Gas Effect on Grain Formation in Laboratory (2008)
  • Author(s): A. Kumamoto & C. Kaito
  • Organizer: Cosmic Dust Near & Far
  • Place of Presentation: Heidelberg
  • Year and Date: 20080908-12
• [Presentation] Crystalline Fe2SiO4 and Amorphous Fe-bearing grains formation by coalescence and growth (2008)
  • Author(s): Y. Saito, R. Ono, A. Kumamoto,and C. Kaito
  • Organizer: Cosmic Dust Near & Far
  • Place of Presentation: Heidelberg
  • Year and Date: 20080908-12
• [Presentation] Low temperature crystallization of silicate dust (2008)
  • Author(s): T. Yamamoto, K.K. Tanaka, H. Kimura
  • Organizer: T. Chigai AOGS 2008
  • Place of Presentation: Busan
  • Year and Date: 20080616-20
• [Presentation] Low Temperature Crystallization of Thin Amorphous Silicate Layer on the Crystalline Fe Dust (2008)
  • Author(s): Chihiro Kaito, Akihito Kumamoto, Midori Saito & Yuki Kimura
  • Organizer: AOGS 2008
  • Place of Presentation: Busan
  • Year and Date: 20080616-20
• [Presentation] Laboratory Experiments on the PAH grains with inorganic Matters and their alteration by plasma (2008)
  • Author(s): Midori Saito, Y. Kimura and C. Kaito
  • Organizer: AOGS 2008
  • Place of Presentation: Busan
  • Year and Date: 20080616-20
• [Presentation] Laboratory Production of Crystalline and Amorphous Forsterite Grains (2008)
  • Author(s): Tetsuya Miyashita, Akihito Kumamoto, Midori Saito, Yuki Kimura & Chihiro Kaito
  • Organizer: AOGS 2008
  • Place of Presentation: Busan
  • Year and Date: 20080616-20
• [Presentation] Characteristic Grain Formation in Hydrogen Gas Atmosphere (2008)
  • Author(s): Akihito Kumamoto, Yuki Kimura & Chihiro Kaito
  • Organizer: AOGS 2008
  • Place of Presentation: Busan
  • Year and Date: 20080616-20
• [Presentation] In situ observation of structural alteration process of filmy quenched carbonaceous composite (2008)
  • Author(s): Akihito Kumamoto, Yuki Kimura, Chihiro Kaito,& Setsuko Wada
  • Organizer: Organic Matter in Space IAU Symposium 251
  • Place of Presentation: Hong Kong
  • Year and Date: 20080218-22
• [Book] 星間物質と星形成シリーズ現代の天文学6(福井康雄, 犬塚修一郎, 大西利和, 中井直正, 水野亮編)日本評論社 (2008)
  • Author(s): 山本哲生
  • Total Pages: 325
  • Publisher: 日本評論社
• [Remarks]
  • URL: http://risu.lowtem.hkudai.ac.jp/japanese_index.html