Constrains on the growth process of planetesimals deduced from condrule and matrix mixture formation

• Project/Area Number: 20540411
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Solid earth and planetary physics
• Research Institution: Kobe University
• Principal Investigator: NAKAMURA Akiko Kobe University, 大学院・理学研究科, 准教授 (40260012)
• Research Collaborator: BLUM Juergen ブラウンシュバイク工科大学, 教授
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2008: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: コンドリュール / 圧密 / 微惑星 / マトリックス / 貫入

Research Abstract

We performed impact experiments in order to give some constraints for the formation condition of chondrule-matrix mixture. Glass bead of 1-4.7mm in diameter was shot into agglomerates of silica particles or sintered glass beads with velocity ranged from 0.1 to several tens m/s. The result indicated that the impact condition in which the projectile can intrude into the porous target is limited.

Research Products

• [Journal Article] In situ observation of penetration process in silica aerogel : deceleration mechanism of hard spherical projectiles. (2011)
  • Author(s): Niimi, R., Kadono, T., Arakawa, M., Yasui, M., Dohi, K., Nakamura, A. M., Iida, Y., Tsuchiyama, A.
  • Journal Title: Icarus 211 Pages: 986-992
  • Peer Reviewed
• [Journal Article] Experimental study on static and impact strength of sintered agglomerates. (2011)
  • Author(s): Machii, N., Nakamura, A.M.
  • Journal Title: Icarus 211 Pages: 885-893
  • Peer Reviewed
• [Journal Article] Experimental study on static and impact strength of sintered agglomerates (2011)
  • Author(s): Machii, N., Nakamura, A.M.
  • Journal Title: Icarus Volume: 211 Pages: 986-992
  • Peer Reviewed
• [Journal Article] In situ observation of penetration process in silica aerogel : deceleration mechanism of hard spherical projectiles (2011)
  • Author(s): Niimi, R., Kadono, T., Arakawa, M., Yasui, M., Dohi, K., Nakamura, A.M., Iida, Y., Tsuchiyama, A.
  • Journal Title: Icarus Volume: 211 Pages: 885-893
  • Peer Reviewed
• [Journal Article] Impact strength of sintered agglomerates (2011)
  • Author(s): Machii, N., Nakamura, A.M.
  • Journal Title: Proc.43rd ISAS Lunar and Planet.Sci.Symp. Volume: (掲載確定)(CD-ROM)
• [Journal Article] Collisional disruption experiments of porous targets. (2009)
  • Author(s): Nakamura, A.M., Hiraoka, K., Yamashita, Y., Machii, N.
  • Journal Title: Planet.Space Sci. 57 Pages: 111-118
  • Peer Reviewed
• [Journal Article] Numerical simulations of impacts involving porous bodies : II.Comparison with laboratory experiments. (2009)
  • Author(s): Jutzi, M., Michel, P., Hiraoka, K., Nakamura, A.M., Benz, W.
  • Journal Title: Icarus 201 Pages: 802-813
  • Peer Reviewed
• [Journal Article] Compaction and fragmentation of porous gypsum targets from low-velocity impacts. (2009)
  • Author(s): Fujii, Y., Nakamura, A.M.
  • Journal Title: Icarus 201 Pages: 795-801
  • Peer Reviewed
• [Journal Article] Compaction experiments of silica aggregates (2009)
  • Author(s): N. Machii
  • Journal Title: Proc. 41st ISAS Lunar and Planet. Sci. Symp. in press
• [Presentation] Drop experiments simulating a collision between chondrules and matrix under microgravity (2011)
  • Author(s): Machii N., Nakamura A.M., Beger, D., Guettler, C., Blum, J.
  • Organizer: AOGS2011
  • Place of Presentation: Taipei(発表予定).
  • Year and Date: 2011-08-10
• [Presentation] Deceleration of low velocity impactor by regolith, Recent Progress in Physics of Dissipative Particles. (2010)
  • Author(s): 中村昭子
  • Organizer: -From fine powders to macroscopic behaviors of granular particles s -
  • Place of Presentation: 京都大学基礎物理学研究所
  • Year and Date: 2010-11-25
• [Presentation] Deceleration of low velocity impactor by regolith (2010)
  • Author(s): Nakamura, A.M.
  • Organizer: Recent Progress in Physics of Dissipative Particles.-From fine powders to macroscopic behaviors of granular particles-
  • Place of Presentation: 京都大学(京都府)
  • Year and Date: 2010-11-25
• [Presentation] レゴリス層への貫入実験 (2010)
  • Author(s): 中村昭子, 瀬藤真人
  • Organizer: 日本惑星科学会秋季講演会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2010-10-06
• [Presentation] レゴリス層への弾丸貫入実験 (2010)
  • Author(s): 中村昭子
  • Organizer: 日本惑星科学会秋季講演会
  • Place of Presentation: 名古屋大学(愛知県)
  • Year and Date: 2010-10-06
• [Presentation] Impact strength of sintered agglomerates. (2010)
  • Author(s): 町井渚, 中村昭子
  • Organizer: 43st ISAS Lunar and Planetary Symp.
  • Place of Presentation: ISAS in Sagamihara.
• [Presentation] Impact disruption experiments of sintered glass beads aggregate consisting of millimeter-size particles. (2010)
  • Author(s): Machii N., Nakamura A.M., Fujii, Y.
  • Organizer: 41st Lunar and Planetary Science conference LPI Contribution No.1533, p.2069.
  • Place of Presentation: Woodlands, Texas.
• [Presentation] 粒子層への貫入則についての実験的試み, 低温研共同利用研究集会/科研費基盤(A)「惑星系円盤ダストの統合モデルの確立」, 天体の衝突物理の解明(V) (2009)
  • Author(s): 中村昭子
  • Place of Presentation: 北海道大学低温科学研究所, 札幌
• [Presentation] ソーダライムガラスビーズ焼結体の物理的特性に関する測定・観察 (2009)
  • Author(s): 町井渚, 中村昭子
  • Organizer: 日本惑星学会秋季講演会
  • Place of Presentation: 東京大学
• [Presentation] Experimental study on the bulk strength of sintered dust aggregate analog. (2009)
  • Author(s): 町井渚, 中村昭子.
  • Organizer: Origins of Solar Systems, Gordon Research Conferences
  • Place of Presentation: Mount Holyoke College, South Hadley, MA, U.S.A.
• [Presentation] Experimental study on the bulk strength of sintered dust aggregate analog (2009)
  • Author(s): Machii, N., Nakamura, A, M.
  • Organizer: Origins of Solar Systems, Gordon Research Conferences
  • Place of Presentation: Mount Holyoke College, South Hadley, MA, U.S.A
• [Presentation] 粒子層への貫入則についての実験的試み (2009)
  • Author(s): 中村昭子
  • Organizer: 低温研共同利用研究集会/科研費基盤(A)「惑星系円盤ダストの統合モデルの確立」、天体の衝突物理の解明(V)
  • Place of Presentation: 北海道大学低温科学研究所(北海道)
• [Presentation] シリカ微粒子集合体へのミリメートルサイズガラス粒子の衝突実験 (2008)
  • Author(s): 町井渚, 中村昭子
  • Organizer: 日本惑星科学会2008秋季講演会
  • Place of Presentation: 九州大学
  • Year and Date: 2008-11-02
• [Presentation] Measurement of porosity-pressure relation of silica micro particles and its application to impact compaction of dust aggregates (2008)
  • Author(s): 町井渚, 中村昭子.
  • Organizer: AOGS2008
  • Place of Presentation: Busan, Korea
  • Year and Date: 2008-06-18
• [Presentation] Measurement of porosity- pressure relaton of silica micro particles and its application to impact compaction of dust aggregates (2008)
  • Author(s): N. Machii
  • Organizer: Asia Oceania Geosciences Society (AOGS)Meeting
  • Place of Presentation: Busan, Korea
  • Year and Date: 2008-06-18
• [Presentation] Compaction experiments of silica aggregates. (2008)
  • Author(s): 町井渚, 中村昭子.
  • Organizer: 41st ISAS Lunar and Planetary Symp.
  • Place of Presentation: ISAS in Sagamihara.