Observation of surface structure of amorphous ice and role of amorphous ice in surface atomic reactions at low temperatures

• Project/Area Number: 22340157
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Petrology/Mineralogy/Science of ore deposit
• Research Institution: Hokkaido University
• Principal Investigator: KOUCHI Akira 北海道大学, 低温科学研究所, 教授 (60161866)
• Co-Investigator(Kenkyū-buntansha): WATANABE Naoki 北海道大学, 低温科学研究所, 教授 (50271531) ; HIDAKA Hiroshi 北海道大学, 低温科学研究所, 助教 (00400010)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000); Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2011: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2010: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
• Keywords: アモルファス氷 / 原子間力顕微鏡 / 表面構造 / 低温 / 表面原子反応 / 水分子 / 原子反応 / 表面拡散 / 表面

Research Abstract

An ultrahigh vacuum low temperature atomic force microscope for in-situ deposition of amorphous ice and for observation of ice surface has been developed. We have succeeded to observe the surface structure of amorphous ice and found that the surface of amorphous ice is very porous. This might cause the catalytic properties of amorphous ice in surface atomic reactions.

Research Products

• [Journal Article] Water Formation Through a Quantum Tunneling Surface Reaction, OH+H_2 at 10 K (2012)
  • Author(s): Y.Oba, et al
  • Journal Title: The Astrophysical Journal Volume: 749 Issue: 1 Pages: 12-12
  • DOI: 10.1088/0004-637x/749/1/67
  • Peer Reviewed
• [Journal Article] The mechanism of surface diffusion of H and D atoms on amorphous solid water: Existence of various potential sites (2012)
  • Author(s): T. Hama, K. Kuwahata, N. Watanabe, A.Kouchi, Y. Kimura. T. Chigai, V. Pirronello
  • Journal Title: Astrophys. J Volume: 757(2)
  • Peer Reviewed
• [Journal Article] 星間分子雲での微粒子表面における水素の化学物理過程 (2012)
  • Author(s): 渡部直樹,香内晃,羽馬哲也,日高宏,大場康弘, 千貝健
  • Journal Title: 表面科学 Volume: 33(12) Issue: 12 Pages: 662-668
  • DOI: 10.1380/jsssj.33.662
  • NAID: 130004486722
  • Peer Reviewed
• [Journal Article] The Mechanism of surface diffusion of H and D atoms on amorphous solid water: Existence of various potential sites (2012)
  • Author(s): T. Hama
  • Journal Title: Astrophys. J. Volume: 757 Issue: 2 Pages: 12-12
  • DOI: 10.1088/0004-637x/757/2/185
  • Peer Reviewed
• [Journal Article] FTIR study of ammonia formation via the successive hydrogenation of N atoms trapped in a solid N_2 matrix at low temperatures (2011)
  • Author(s): H. Hidaka, M. Watanabe, A. Kouchi and N. Watanabe
  • Journal Title: Phys. Chem. Chem. Phys. Volume: 13, 35 Issue: 35 Pages: 15798-15802
  • DOI: 10.1039/c1cp20645a
  • Peer Reviewed
• [Journal Article] Experimental studies of surface reactions among OH radicals that yield H_2O and CO_2 at 40-60 K (2011)
  • Author(s): Y. Oba, N. Watanabe, A. Kouchi, T. Hama and V. Pirronello
  • Journal Title: Phys. Chem. Chem. Phys. Volume: 13, 35 Issue: 35 Pages: 15792-15797
  • DOI: 10.1039/c1cp20596j
  • Peer Reviewed
• [Journal Article] Spin Temperature of Water Molecules Desorbed from the Surfaces of Amorphous Solid Water, Vapor-deposited and Produced from Photolysis of a CH_4/O_2 Solid Mixture (2011)
  • Author(s): Hama,T., Watanabe,N., Kouchi,A., Yokoyama, M.
  • Journal Title: Astrophys. J. Lett. Volume: 738, 1 Issue: 1 Pages: L15-L15
  • DOI: 10.1088/2041-8205/738/1/l15
  • Peer Reviewed
• [Journal Article] 星間分子雲における二酸化炭素生成に関する実験的研究 (2011)
  • Author(s): 大場康弘, 渡部直樹, 香内晃, 羽馬哲也, ピロネロ バレリオ
  • Journal Title: 地球化学 Volume: 45 Pages: 213-226
  • NAID: 110008913804
  • Peer Reviewed
• [Journal Article] FTIR study of ammonia formation via the successive hydrogenation of N atoms trapped in a solid N_2 matrix at low temperatures (2011)
  • Author(s): H.Hidaka, M.Watanabe, A.Kouchi, N.Watanabe
  • Journal Title: Phys.Chem.Chem.Phys. Volume: 13 Pages: 15798-15802
  • Peer Reviewed
• [Journal Article] Experimental studies of surface reactions among OH radicals that yield H_2O and CO_2 at 40-60 K (2011)
  • Author(s): Y.Oba, N.Watanabe, A.Kouchi, T.Hama, V.Pirronello
  • Journal Title: Phys.Chem.Chem.Phys. Volume: 13 Pages: 15792-15797
  • Peer Reviewed
• [Journal Article] Formation of H_2O ice through the surface reaction O_2+H at low temperatures : Reaction kinetics and structure of the ice (2011)
  • Author(s): Y.Oba, et al.
  • Journal Title: Physics and Chemistry of Ice 2010 Volume: in press
  • Peer Reviewed
• [Journal Article] Laboratory investigations of physico-chemical processes occurring in icy mantles on interstellar dust grains (2011)
  • Author(s): V.Pirronello, et al.
  • Journal Title: Physics and Chemistry of Ice 2010 Volume: in press
  • Peer Reviewed
• [Journal Article] Formation of Carbonic Acid (H_2CO_3) by Surface Reactions of Non-energetic OH Radicals with CO Molecules at Low Temperatures (2010)
  • Author(s): Y. Oba, N. Watanabe, A. Kouchi, T. Hama, V. Pirronello
  • Journal Title: Astrophys. J. Volume: 722 Issue: 2 Pages: 1598-1606
  • DOI: 10.1088/0004-637x/722/2/1598
  • Peer Reviewed
• [Journal Article] Formation of Carbonic Acid (H_2CO_3) by Surface Reactions of Non-energetic OH Radicals with CO Molecules at Low Temperatures (2010)
  • Author(s): Y.Oba, et al.
  • Journal Title: Astrophys. J Volume: 722 Pages: 1598-1606
  • Peer Reviewed
• [Journal Article] Direct measurements of hydrogen atom diffusion and the spin temperature of nascent H_2 molecule on amorphous solid water (2010)
  • Author(s): N.Watanabe, et al.
  • Journal Title: Astrophys. J.Lett. Volume: 714
  • Peer Reviewed
• [Journal Article] Direct evidence for ammonium ion formation in ice through ultraviolet-induced acid-base reaction of NH_3 with H_3O^+ (2010)
  • Author(s): E-S.Moon, et al
  • Journal Title: Astrophys. J Volume: 713 Pages: 906-911
  • Peer Reviewed
• [Journal Article] Experimental study of CO_2 formation by surface reactions of non-energetic OH radicals with CO molecules (2010)
  • Author(s): Y.Oba, et al.
  • Journal Title: Astrophys. J.Lett. Volume: 712
  • Peer Reviewed
• [Presentation] Formation of H2O Ice on Cold Interstellar Grains: Reaction Kinetics and the Structure of Ice (2013)
  • Author(s): Y. Oba4
  • Organizer: Workshop on Ice and Water Films
  • Place of Presentation: Seoul National University, (South Korea), Invited
  • Year and Date: 2013-05-07
• [Presentation] Physics and chemistry of hydrogen on cosmic dust: diffusion, spin temperatures, and water formation (2013)
  • Author(s): N. Watanabe
  • Organizer: First Workshop on Experimental Laboratory Astrophysics
  • Place of Presentation: Sheraton Kauai, Hawaii(USA), Invited
  • Year and Date: 2013-02-27
• [Presentation] Development of an ultrahigh vacuum low temperature transmission electron microscope for in situ observation of ice (2013)
  • Author(s): A. Kouchi
  • Organizer: First Workshop on Experimental Laboratory Astrophysics
  • Place of Presentation: Sheraton Kauai, Hawaii(USA)
  • Year and Date: 2013-02-26
• [Presentation] Experimental measurements of nuclear-spin temperature of thermally desorbed water molecules from ice (2013)
  • Author(s): T. Hama
  • Organizer: First Workshop on Experimental Laboratory Astrophysics
  • Place of Presentation: Sheraton Kauai, Hawaii(USA)
  • Year and Date: 2013-02-26
• [Presentation] Hydrogen isotopic fractionation of solid methylamine through atomic-surface reactions at 10K (2013)
  • Author(s): Y. Oba
  • Organizer: First Workshop on Experimental Laboratory Astrophysics
  • Place of Presentation: Sheraton Kauai, Hawaii(USA)
  • Year and Date: 2013-02-26
• [Presentation] 表面への水素・重水素原子照射による吸着原子数密度の同位体依存性 (2013)
  • Author(s): 桑畑和明
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学(東広島市）
• [Presentation] Development of an ultrahigh vacuum low temperature transmission electron microscope for in situ observation of ice (2013)
  • Author(s): A.Kouchi
  • Organizer: First Workshop on Experimental Laboratory Astrophysics
  • Place of Presentation: Sheraton Kauai（USA)
• [Presentation] Physics and chemistry of hydrogen on cosmic dust: diffusion, spin temperatures, and water formation (2013)
  • Author(s): N. Watanabe
  • Organizer: First Workshop on Experimental Laboratory Astrophysics
  • Place of Presentation: Sheraton Kauai（USA)
  • Invited
• [Presentation] Experimental measurements of nuclear-spin temperature of thermally desorbed water molecules from ice (2013)
  • Author(s): T. Hama
  • Organizer: First Workshop on Experimental Laboratory Astrophysics
  • Place of Presentation: Sheraton Kauai（USA)
• [Presentation] Hydrogen isotopic fractionation of solid methylamine through atomic-surface reactions at 10K (2013)
  • Author(s): Y. Oba
  • Organizer: First Workshop on Experimental Laboratory Astrophysics
  • Place of Presentation: Sheraton Kauai（USA)
• [Presentation] Surface diffusion mechanism of H and D atoms on amorphous solid water (2013)
  • Author(s): K. Kuwahata
  • Organizer: First Workshop on Experimental Laboratory Astrophysics
  • Place of Presentation: Sheraton Kauai（USA)
• [Presentation] Evidence of ammonium ion formation in interstellar ice by acid-base reaction without acids (2013)
  • Author(s): E.-S. Moon
  • Organizer: First Workshop on Experimental Laboratory Astrophysics
  • Place of Presentation: Sheraton Kauai（USA)
• [Presentation] 氷の構造・電子状態解析のための極低温超高真空透過型電子顕微鏡の開発 (2012)
  • Author(s): 香内晃
  • Organizer: 低温科学研究所萌芽研究「氷の物理と化学研究の新展開」共同研究集会「H_2Oを科学する・2012」
  • Place of Presentation: 北海道大学
  • Year and Date: 2012-12-07
• [Presentation] アモルファス氷表面で生成した水素分子のオルソ・パラ比とその時間変化 (2012)
  • Author(s): 桑畑和明, 羽馬哲也, 渡部直樹, 香内晃
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学(西宮市)(招待講演)
  • Year and Date: 2012-03-24
• [Presentation] 共鳴多光子イオン化法による氷から熱脱離した水分子の原子核スピン温度測定実験 (2012)
  • Author(s): 羽馬哲也, 渡部直樹, 香内晃
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学(西宮市)
  • Year and Date: 2012-03-24
• [Presentation] Low-temperature Surface Reactions of Non-energetic OH Radicals of Astrophysical Interest (2012)
  • Author(s): Yasuhiro Oba, Naoki Watanabe, Tetsuya Hama, Akira Kouchi, Valerio Pirronello
  • Organizer: SASP2012
  • Place of Presentation: The Conference Center del' Alpe d' Huez (France)
  • Year and Date: 2012-01-25
• [Presentation] Spin temperature measurement of thermally desorbed water molecules from water ice prepared at 8K (2012)
  • Author(s): Tetsuya Hama, Naoki Watanabe, Akira Kouchi
  • Organizer: SASP2012
  • Place of Presentation: The Conference Center del' Alpe d' Huez (France)
  • Year and Date: 2012-01-23
• [Presentation] 氷の構造・電子状態解析のための極低温超高真空透過型電子顕微鏡の開発 (2012)
  • Author(s): 香内 晃
  • Organizer: 低温科学研究所萌芽研究「氷の物理と化学研究の新展開」共同研究集会「H2Oを科学する・2012」
  • Place of Presentation: 北海道大学(札幌市）
• [Presentation] Laboratory measurements of spin temperature of water molecules from ice in thermal desorption (2012)
  • Author(s): T. Hama
  • Organizer: Workshop on Interstellar Matter 2012
  • Place of Presentation: Hokkaido Univ.（Sapporo)
• [Presentation] Deuterium fractionation of methylamine through atomic grain-surface reactions at low temperatures: implication for the possible D/H ratio in molecular clouds (2012)
  • Author(s): Y. Oba
  • Organizer: Workshop on Interstellar Matter 2012
  • Place of Presentation: Hokkaido Univ.（Sapporo)
• [Presentation] Water formation by OH + H2 on grain surfaces at 10 K: large isotope effects by quantum tunneling (2012)
  • Author(s): Y. Oba
  • Organizer: Workshop on Interstellar Matter 2012
  • Place of Presentation: Hokkaido Univ.（Sapporo）
• [Presentation] 極低温表面における過酸化水素と水素原子の反応による水生成とその同位体効果 (2012)
  • Author(s): 大場康弘
  • Organizer: 日本地球化学会2012年会
  • Place of Presentation: 九州大学（福岡市）
• [Presentation] 極低温表面におけるメチルアミンの水素-重水素交換反応とその応用 (2012)
  • Author(s): 大場康弘
  • Organizer: 第30回有機地球化学シンポジウム
  • Place of Presentation: 東北大学（仙台市）
• [Presentation] 彗星コマの水分子の核スピン温度は彗星氷の生成温度を反映しているか？ (2012)
  • Author(s): 羽馬哲也
  • Organizer: 日本地球惑星科学連合2012年大会
  • Place of Presentation: 幕張メッセ国際会議場（千葉市）
• [Presentation] 星間塵表面での水分子とその重水素置換体生成 (2012)
  • Author(s): 大場康弘
  • Organizer: 日本地球惑星科学連合2012年大会
  • Place of Presentation: 幕張メッセ国際会議場(千葉市）
• [Presentation] Nuclear-spin temperature of water molecules thermally desorbed from ice: A laboratory study (2012)
  • Author(s): T. Hama
  • Organizer: Asteroid, Comets, Meteors 2012
  • Place of Presentation: Niigata Toki Messe（Niigata)
• [Presentation] Surface chemical reactions to the formation of solid H2O and its isotopologues on interstellar grains at 10K (2012)
  • Author(s): Y. Oba
  • Organizer: Asteroid, Comets, Meteors 2012
  • Place of Presentation: Niigata Toki Messe（Niigata）
• [Presentation] Hydrogen isotope substitution of solid methylamine (CH3NH2) on a low-temperature surface (2012)
  • Author(s): Y.Oba
  • Organizer: Asteroid, Comets, Meteors 2012
  • Place of Presentation: Niigata Toki Messe（Niigata）
• [Presentation] 重水素原子の低温氷表面における拡散 (2011)
  • Author(s): 羽馬哲也, 渡部直樹, 香内晃, V.Pirronello
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 富山大学(富山市)
  • Year and Date: 2011-09-23
• [Presentation] 低温表面反応による水分子生成とその同位体効果 (2011)
  • Author(s): 大場康弘, 渡部直樹, 香内晃
  • Organizer: 日本地球化学会年会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2011-09-16
• [Presentation] 低温の星間塵表面における窒素原子への水素原子付加反応によるアンモニア生成 (2011)
  • Author(s): 日高宏, 香内晃, 渡部直樹
  • Organizer: 日本地球化学会年会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2011-09-16
• [Presentation] 星間塵表面におけるメチルアミンの水素同位体交換反応 (2011)
  • Author(s): 大場康弘, 渡部直樹, 香内晃
  • Organizer: 第29回有機地球化学シンポジウム
  • Place of Presentation: 九州大学(福岡市)
  • Year and Date: 2011-09-01
• [Presentation] 地球の雪・宇宙の雪 (2011)
  • Author(s): 香内晃
  • Organizer: 第51回日本臨床化学会年次学術集会
  • Place of Presentation: 札幌医科大学(札幌市)(招待講演)
  • Year and Date: 2011-08-28
• [Presentation] アモルファス氷表面における水素原子の拡散メカニズム (2011)
  • Author(s): 羽馬哲也, 渡部直樹, 香内晃, 木村勇気, V.Pirronello
  • Organizer: 第9回水素量子アトミクス研究会
  • Place of Presentation: 東北大学(仙台市)
  • Year and Date: 2011-08-23
• [Presentation] Hydrogen tunneling reaction and its isotope effect at a low temperature ice surface : Origin of deuterium enrichments in interstellar formaldehyde and methanol (2011)
  • Author(s): N.Watanabe, H.Hidaka, A.Kouchi
  • Organizer: MATRIX2011
  • Place of Presentation: Univ. of British Columbia(Canada)(招待講演)
  • Year and Date: 2011-07-11
• [Presentation] Isotope effect on the formation of H_2O isotopologues by quantum tunneling reactions of H_2/HD/D_2 with non-energetic OH/OD radicals at low temperatures (2011)
  • Author(s): Y.Oba, N.Watanabe, A.Kouchi
  • Organizer: MATRIX2011
  • Place of Presentation: Univ. of British Columbia(Canada)
  • Year and Date: 2011-07-11
• [Presentation] REMPI measurements of spin temperatures of desorbed water molecules from vapor-deposited and photo-produced amorphous solid water at 8K (2011)
  • Author(s): T.Hama, N.Watanabe, A.Kouchi, M.Yokoyama
  • Organizer: 第27回化学反応討論会
  • Place of Presentation: 東京工業大学(東京都)
  • Year and Date: 2011-06-09
• [Presentation] Sequential hydrogenation of molecular oxygen on cold surfaces : reaction kinetics and structure of formed H_2O ice (2011)
  • Author(s): Y.Oba, N.Miyauchi, H.Hidaka, T.Chigai, N.Watanabe, A.Kouchi
  • Organizer: IAU Symposiuin280 : The Molecular Universe
  • Place of Presentation: Univ. of Castilla-La Mancha(Spain)
  • Year and Date: 2011-06-02
• [Presentation] Neutral radical-molecule reactions CO+OH on cold Interstellar ices (2011)
  • Author(s): Y.Oba, N.Watanabe, A.Kouchi, T.Hama, V.Pirronello
  • Organizer: IAU Symposium280 : The Molecular Universe
  • Place of Presentation: Univ. of Castilla-La Mancha(Spain)
  • Year and Date: 2011-06-02
• [Presentation] FTIR measurements of ammonia formation by the successive H-atom addition to N-atom in an N_2 matrix at 10K (2011)
  • Author(s): H.Hidaka, M.Watanabe, A.Kouchi, N.Watanabe
  • Organizer: IAU Symposium280 : The Molecular Universe
  • Place of Presentation: Univ. of Castilla-La Mancha(Spain)
  • Year and Date: 2011-06-02
• [Presentation] Diffusion mechanism of hydrogen and deuterium atoms and the spin temperature of molecules on the surface of water ice at 8-15K (2011)
  • Author(s): T.Hama, N.Watanabe, Y.Kimura, A.Kouchi, T.Chigai, V.Pirronello
  • Organizer: IAU Symposium280 : The Molecular Universe
  • Place of Presentation: Univ. of Castilla-La Mancha(Spain)
  • Year and Date: 2011-06-02
• [Presentation] 星間塵表面反応による化学進化および重水素濃集 (2011)
  • Author(s): 渡部直樹, 日高宏, 大場康弘, 羽馬哲也, 香内晃, 千貝健, 木村勇気
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ(千葉県)(招待講演)
  • Year and Date: 2011-05-23
• [Presentation] 水素および重水素原子の氷表面拡散と水素分子生成 (2011)
  • Author(s): 羽馬哲也, 渡部直樹, 木村勇気, 香内晃, 千貝健
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ(千葉県)
  • Year and Date: 2011-05-23
• [Presentation] 高密度分子雲内部におけるラジカルー分子表面反応による二酸化炭素生成 (2011)
  • Author(s): 大場康弘, 渡部直樹, 香内晃, 羽馬哲也, ピロネロバレリオ
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ(千葉県)
  • Year and Date: 2011-05-23
• [Presentation] 水素-窒素原子低温表面反応によるアンモニア分子生成 (2011)
  • Author(s): 日高宏, 他
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 新潟大学,新潟県
  • Year and Date: 2011-03-28
• [Presentation] 低温氷表面に吸着した水素原子の拡散メカニズム (2011)
  • Author(s): 羽馬哲也, 他
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 新潟大学,新潟県
  • Year and Date: 2011-03-28
• [Presentation] Spectroscopic approach to physicochemical processes on ices at low temperatures (2010)
  • Author(s): T.Hama, et al
  • Organizer: Pacifichem 2010
  • Place of Presentation: Honolulu, Hawaii USA
  • Year and Date: 2010-12-18
• [Presentation] Ammonia formation by the successive hydrogenation of N atom trapped in solid N_2 at below 30K (2010)
  • Author(s): H.Hidaka, et al.
  • Organizer: Pacifichem 2010
  • Place of Presentation: Honolulu, Hawaii USA
  • Year and Date: 2010-12-18
• [Presentation] Experimental studies on surface reactions of CO molecules with cold OH radicals at 10-40K (2010)
  • Author(s): Y.Oba, et al.
  • Organizer: Pacifichem 2010
  • Place of Presentation: Honolulu, Hawaii USA
  • Year and Date: 2010-12-18
• [Presentation] Formation of CO_2 and H_2CO_3 through non-energetic surface reactions at low temperatures (2010)
  • Author(s): Y.Oba, et al.
  • Organizer: Workshop on Interstellar Matter 2010 (ISM2010)(invited)
  • Place of Presentation: Hokkaido Univ., Sapporo
  • Year and Date: 2010-09-14
• [Presentation] Ammonia formation by the successive hydrogenation of N atom trapped solid N2 at low temperature (2010)
  • Author(s): H.Hidaka, et al
  • Organizer: Workshop on Interstellar Matter 2010 (ISM2010)
  • Place of Presentation: Hokkaido Univ., Sapporo
  • Year and Date: 2010-09-13
• [Presentation] Laboratory measurements of atomic hydrogen diffusion and the ortho-para conversion of nascent H_2 molecules on amorphous solid water (2010)
  • Author(s): N.Watanabe, et al.
  • Organizer: Workshop on Interstellar Matter 2010 (ISM2010)
  • Place of Presentation: Hokkaido Univ., Sapporo
  • Year and Date: 2010-09-13
• [Presentation] Structure of H_2O ice formed by surface reactions of oxygen molecules with hydrogen atoms at low temperatures (2010)
  • Author(s): Yasuhiro Oba, et al.
  • Organizer: 12th International Conference on the Physics and Chemistry of Ice (PCI2010)(invited)
  • Place of Presentation: Hokkaido Univ., Sapporo
  • Year and Date: 2010-09-10
• [Presentation] Observational evidences of interstellar icy mantles on dust grains and laboratory investigations of physico-chemical processes (2010)
  • Author(s): Valerio Pirronello, et al.
  • Organizer: 12th International Conference on the Physics and Chemistry of Ice (PCI2010)
  • Place of Presentation: Hokkaido Univ., Sapporo
  • Year and Date: 2010-09-09
• [Presentation] Effect of amorphous solid water on surface tunneling reactions of atomic hydrogen (2010)
  • Author(s): Naoki Watanabe, et al.
  • Organizer: 12th International Conference on the Physics and Chemistry of Ice (PCI2010)
  • Place of Presentation: Hokkaido Univ., Sapporo
  • Year and Date: 2010-09-09
• [Presentation] Morphology effects in hydrogenation of CO at low temperature ice surfaces (2010)
  • Author(s): Hiroshi Hidaka, et al.
  • Organizer: 12th International Conference on the Physics and Chemistry of Ice (PCI2010)
  • Place of Presentation: Hokkaido Univ., Sapporo
  • Year and Date: 2010-09-09
• [Presentation] Towards a new era in physics and chemistry of ice at ILTS (2010)
  • Author(s): Akira Kouchi
  • Organizer: 12th International Conference on the Physics and Chemistry of Ice (PCI2010)(invited)
  • Place of Presentation: Hokkaido Univ., Sapporo
  • Year and Date: 2010-09-06
• [Presentation] Ice surface chemistry of hydrogen atom in space (2010)
  • Author(s): N.Watanabe, et al
  • Organizer: 27th European Conference on Surface Science (invited)
  • Place of Presentation: Groningen, the Netherlands
  • Year and Date: 2010-08-30
• [Presentation] 水素原子のアモルファス氷表面拡散と水素分子生成 (2010)
  • Author(s): 羽馬哲也, 他
  • Organizer: 原子衝突研究協会第35回年会
  • Place of Presentation: 奈良女子大学,奈良県
  • Year and Date: 2010-08-11
• [Presentation] 星間有機分子の重水素濃集:メチルアミン (2010)
  • Author(s): 人場康弘, 他
  • Organizer: 第28回有機地球化学シンポジウム
  • Place of Presentation: 石油資源開発(株)長岡鉱業所,新潟県
  • Year and Date: 2010-08-05
• [Presentation] Chemistry of atomic hydrogen on interstellar ice grains at very low temperatures (2010)
  • Author(s): N Watanabe, et al.
  • Organizer: Western Pacific Geophysics Meeting (invited)
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2010-06-23
• [Presentation] Formation of Compact Amorphous Water Ice by Surface Atomic Reactions at Low Temperatures (2010)
  • Author(s): A.Kouchi, et al
  • Organizer: Western Pacific Geophysics Meeting (invited)
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2010-06-23
• [Presentation] Surface Reactions of CO Molecules with OH Radicals at Low Temperatures (2010)
  • Author(s): Y.Oba, et al.
  • Organizer: Western Pacific Geophysics Meeting
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2010-06-23
• [Presentation] Experimental study of CO_2 and H_2CO_3 formation by surface reactions of non-energetic OH radicals with CO molecules at very low temneratures (2010)
  • Author(s): Oba, Yasuhiro, et al.
  • Organizer: 第26回化学反応討論会
  • Place of Presentation: 広島大学,広島県
  • Year and Date: 2010-06-02
• [Remarks]
  • URL: http://www.lowtem.hokudai.ac.jp/astro/index.html
• [Remarks] 北海道大学低温科学研究所 宇宙物質科学・宇宙雪氷学グループ
  • URL: http://www.lowtem.hokudai.ac.jp/astro/index.html