学術論文

2018

• "Measurements of the Activation Energies for Atomic Hydrogen Diffusion on Pure Solid CO"
  Y. Kimura, M. Tsuge, V. Pirronello, A. Kouchi, N. Watanabe
  Astrophys. J. Lett. 858, L23 (2018)
  
  
• "The Ortho-to-para Ratio of Water Molecules Desorbed from Ice Made from Para-water Monomers at 11K"
  T. Hama, A. Kouchi, N. Watanabe
  Astrophys. J. Lett. 857, L13 (2018)
  
  
• "An infrared measurement of chemical desorption from interstellar ice analogues"
  Y. Oba, T. Tomaru, T. Lamberts, A. Kouchi, N. Watanabe,
  Nature Astronomy, 2, 228-232 (2018)
  
  

2017

• "Deuterium Fractionation upon the Formation of Hexamethylenetetramines through Photochemical Reactions of Interstellar Ice Analogs Containing Deuterated Methanol Isotopologues"
  Y. Oba, Y. Takano, H. Naraoka, A. Kouchi, N. Watanabe,
  Astrophys. J. Lett. 849, 122 (2017)
  
  
• "H₂ formation on interstellar dust grains: The viewpoints of theory, experiments, models and observations"
  V. Wakelam, E. Bron, S. Cazaux, F. Dulieu, C. Gry, P. Guillard, E. Habart, L. Hornekar, S. Morisset, G. Nyman, V. Pirronello, S. D. Price, V. Valdivia, G. Vidali, N. Watanabe
  Molecular Astrophysics 9, 1, (2017)
  
  
• "Laboratory Studies of Methane and Its Relationship to Prebiotic Chemistry"
  K. Kobayashi, W. D. Geppert, N. Carrasco, N. G. Holm, O. Mousis, M. E. Palumbo, J. H. Waite, N. Watanabe, L. M. Ziurys
  Astrobiology 17, 786, (2017)
  
  
• "Liquid-like behavior of UV-irradiated interstellar ice analog at low temperatures"
  S. Tachibana, A. Kouchi, T. Hama, Y. Oba, L. Piani, I. Sugawara, Y. Endo, H. Hidaka, Y. Kimura, K. Murata, H. Yurimoto, N. Watanabe,
  Science Advances 3, eaao2538 (2017)
  
  
• 2017 PCCP Hot Articlesに選ばれました "Fast crystalline ice formation at extremely low temperature through water/neon matrix sublimation"
  T. Hama, S. Ishizuka, T. Yamazaki, Y. Kimura, A. Kouchi, N. Watanabe, T. Sugimoto, V. Pirronello,
  Phys. Chem. Chem. Phys. 19, 17677 (2017)
  
  
• "Comprehensive Study of Thermal Desorption of Grain surface Species by Accretion Shocks around Protostars"
  Hitoshi Miura, Tetsuo Yamamoto, Hideko Nomura, Taishi Nakamoto, Kyoko K. Tanaka, Hidekazu Tanaka, Makiko Nagasawa
  Astrophys. J. 839, 47(16pp) (2017)
  
  
• "Hydrogenation and Deuteration of C₂H₂ and C₂H₄ on Cold Grains: A Clue to the Formation Mechanism of C₂H₆ with Astronomical Interest"
  Hitomi Kobayashi, Hiroshi Hidaka, Thanja Lamberts, Tetsuya Hama, Hideyo Kawakita, Johannes Kastner, Naoki Watanabe
  Astrophys. J. 837, 155 (2017)
  
  
• "Two types of amorphous protein particles facilitate crystal nucleation"
  Tomoya Yamazaki, Yuki Kimura, Peter G. Vekilov, Erika Furukawa, Manabu Shiraie, Hiroaki Matsumoto, Alexander E. S. Van Driessche, Katsuo Tsukamoto
  PNAS 114, 2154-2159 (2017)
  
  
• "Simulations and Spectra of Water in CO Matrices"
  R. Escribano, E. Artacho, A. Kouchi, T. Hama, Y. Kimura, H. Hidaka, and N Watanabe
  Physical Chemistry Chemical Physics 19, 7280-7287 (2017)
  
  
• "Evolution of morphological and physical properties of laboratory interstellar organic residues with ultraviolet irradiation"
  L. Piani, S. Tachibana, T. Hama, H. Tanaka, Y. Endo, I. Sugawara, L. Dessimoulie, Y. Kimura, A. Miyake, J. Matsuno, A. Tsuchiyama, K. Fujita, S. Nakatsubo, H. Fukushi, S. Mori, T. Chigai, H. Yurimoto and A. Kouchi
  The Astrophysical Journal 837, 35 (2017)
  
  
• "Reactive Uptake of Gaseous Sesquiterpenes on Aqueous Surfaces"
  K. Matsuoka, Y. Sakamoto, T. Hama, Y. Kajii, S. Enami
  J. Phys. Chem. A 121, 810-818 (2017)
  
  

2016

• Editors Choice に選ばれました "Matrix sublimation method for the formation of high-density amorphous ice"
  A. Kouchi, T. Hama, Y. Kimura, H. Hidaka, R. Escribano, N. Watanabe
  Chemical Physics Letters 658, 287-292 (2016)
  
  
• "Deuterium Fractionation during Amino Acid Formation by Photolysis of Interstellar Ice Analogs Containing Deuterated Methanol"
  Y. Oba, Y. Takano, N. Watanabe, A. Kouchi
  Astrophys. J. Lett. 827, L18 (2016)
  
  
• Editors Choice に選ばれました "Negative catalytic effect of water on the reactivity of hydrogen abstraction from the C.H bond of dimethyl ether by deuterium atoms through tunneling at low temperatures"
  Y. Oba, N. Watanabe, A. Kouchi
  Chem. Phys. Lett. 662, 14 (2016)
  
  
• "Hydrogen.deuterium substitution in solid ethanol by surface reactions at low temperatures"
  Y. Oba, K. Osaka, T. Chigai, A. Kouchi, N. Watanabe
  Mon. Not. Roy. Astron. Soc. 462, 689 (2016)
  
  
• PRLのEditors' Suggestionに選ばれました．"Surface Temperature Dependence of Hydrogen Ortho-Para Conversion on Amorphous Solid Water"
  H. Ueta, N. Watanabe, T. Hama, A. Kouchi
  Physical Review Letters 116, 253201 (2016)
  
  
• "Stepwise formation of H₃O⁺(H₂O)_n in an ion drift tube: Empirical effective temperature of association/dissociation reaction equilibrium in an electric field"
  Y, Nakai, H. Hidaka, N. Watanabe, T. M. Kojima
  J. Chem. Phys. 144, 224306 (2016)
  
  
• "Statistical ortho-to-para ratio ofwater desorbed from ice at 10 kelvin"
  T. Hama, A. Kouchi, and N. Watanabe
  Science 351, 65 (2016)
  Phys.orgで紹介されました．
  
  

2015

• "Signature of Quantum-Tunneling Diffusion of Hydrogen Atoms on Water Ice at 10 K"
  K. Kuwahata, T. Hama, A. Kouchi, and N. Watanabe
  Physical Review Letters 115, 133201 (2015)
  Phys.orgで紹介されました．
  
  
• "低温アモルファス氷表面における水素原子の拡散－宇宙における分子進化の鍵－"
  羽馬哲也，香内晃，渡部直樹
  日本物理学会誌 vol 70, 609 (2015)
  
  
• Editors Choice に選ばれました　"Chiral glycine formation on cold interstellar grains by quantum tunneling hydrogen-deuterium substitution reactions"
  Y. Oba, N. Watanabe, Y. Osamura, and A. Kouchi
  Chem. Phys. Lett. 634, 53-59 (2015)
  
  
• "Quantum Tunneling Observed without its Characteristic Large Kinetic Isotope Effects"
  T. Hama, H. Ueta, A. Kouchi, and N. Watanabe
  PNAS 112, 7438-7443 (2015)
  
  

2014

• "Quantum Tunneling Hydrogenation of Solid Benzene and Its Control via Surface Structure"
  T. Hama, H. Ueta, A. Kouchi, N. Watanabe, and H. Tachikawa
  The Journal of Physical Chemistry Letters 5, 3843-3848 (2014)
  
  
• "Reaction kinetics and isotope effect of water formation by the surface reaction of solid H₂O₂ with H atoms at low temperatures"
  Yasuhiro Oba, Kazuya Osaka, Naoki Watanabe, Takeshi Chigai and Akira Kouchi
  Faraday Discussion 168, 185-204 (2014)
  
  

2013

• "Surface Processes on Interstellar Amorphous Solid Water: Adsorption, Diffusion, Tunneling Reactions, and Nuclear-Spin Conversion"
  Tetsuya Hama, Naoki Watanabe
  Chem. Rev. 113, 8783 (2013)
  
  
• "Hydrogen isotopic substitution of solid methylamine through atomic surface reactions at low temperatures: A potential contribution to the D/H ratio of methylamine in molecular clouds",
  Yasuhiro OBA,Takeshi CHIGAI, Yoshihiro OSAMURA, Naoki WATANABE, Akira KOUCH
  Meteoritics & Planetary Science 1-16 (2013):DOI: 10.1111/maps.12096
  
  

2012

• ”The Mechanism of Surface Diffusion of H and D Atoms on Amorphous Solid Water: Existence of Various Potential Sites”,
  T. Hama, K. Kuwahata, N. Watanabe, A. Kouchi, Y. Kimura. T. Chigai, V. Pirronello
  Astrophys. J. 757, 185 (2012)
  
  
• “Water Formation Through a Quantum Tunneling Surface Reaction, OH + H₂, at 10 K"
  Y. Oba, N. Watanabe, T. Hama, K. Kuwahata, H. Hidaka, A. Kouchi
  Astrophys. J. 749:67 (2012)
  
  

2011

• “Spin temperature of water molecules desorbed from the surfaces of amorphous solid water, vapor-deposited and produced from photolysis of a CH₄/O₂ solid mixture"
  T. Hama, N. Watanabe, A. Kouchi, and M. Yokoyama.
  Astrophys. J. Lett. 738, L15 (2011)
  
  
• “FTIR study of ammonia formation via the successive hydrogenation of N atoms trapped in a solid N₂ matrix at low temperatures"
  H. Hidaka, M. Watanabe, A. Kouchi and N. Watanabe.
  Phys. Chem. Chem. Phys. 13, 15798 (2011)
  
  
• “Experimental studies of surface reactions among OH radicals that yield H₂O and CO₂ at 40-60 K"
  Y. Oba, N. Watanabe, A. Kouchi, T. Hama, and V. Pirronello.
  Phys. Chem. Chem. Phys. 13, 15792 (2011)
  
  
• “A theoretical and experimental study on translational and internal energies of H₂O and OH from the 157 nm irradiation of amorphous solid water at 90 K"
  S. Andersson, C. Arasa, A. Yabushita, M. Yokoyama, T. Hama, M. Kawasaki, C. M. Western and M. N. R. Ashfold.
  Phys. Chem. Chem. Phys. 13, 15810 (2011)
  
  
• “Surface abundance change in vacuum ultraviolet photodissociation of CO₂ and H₂O mixture ices"
  T. Kinugawa, A. Yabushita, M. Kawasaki, T. Hama, and N. Watanabe.
  Phys. Chem. Chem. Phys. 13, 15785 (2011)
  
  
• “Laboratory studies on the formation of formic Acid (HCOOH) in interstellar and cometary ices"
  C. J. Bennett, T. Hama, Y. S. Kim, M. Kawasaki, and R. I. Kaiser,
  Astrophys. J. 727, 27 (2011)
  
  
• “Translational and rotational energy measurements of desorbed water molecules in their vibrational ground state following 157 nm irradiation of amorphous solid water”
  T. Hama, M. Yokoyama, A. Yabushita, M. Kawasaki, & N. Watanabe,
  Nucl. Instr. Methods B 269, 1011-1015 (2011)
  
  

2010

• “Formation of Carbonic Acid (H₂CO₃) by Surface Reactions of Non-energetic OH Radicals with CO Molecules at Low Temperatures”
  Y. Oba, N. Watanabe, A. Kouchi, T. Hama, & V. Pirronello,
  Astrophys. J. 722, 1598-1606 (2010)
  
  
• “Role of OH radicals in the formation of oxygen molecules following vacuum ultraviolet photodissociation of amorphous solid water"
  T. Hama, M. Yokoyama, A. Yabushita, & M. Kawasaki,
  J. Chem. Phys. 133, 104504 (2010)
  
  
• “Direct measurements of hydrogen atom diffusion and the spin temperature of nascent H₂ molecule on amorphous solid water"
  N. Watanabe, Y. Kimura, A. Kouchi, T. Chigai, T. Hama, & V. Pirronello,
  Astrophys. J. Lett. 714, L233 (2010)
  
  
• “A desorption mechanism of water following vacuum-ultraviolet irradiation on amorphous solid water at 90 K"
  T. Hama, M. Yokoyama, A. Yabushita, M. Kawasaki, S. Andersson, C.M. Western, M.N.R. Ashfold, R.N. Dixon, & N. Watanabe,
  J. Chem. Phys. 132, 164508 (2010).
  
  
• “Direct evidence for ammonium ion formation in ice through ultraviolet-induced acid-base reaction of NH₃ with H₃O⁺"
  E-S. Moon, H. Kang, Y. Oba, N. Watanabe, & A. Kouchi,
  Astrophys. J. 713, 906 (2010)
  
  
• “Experimental study of CO₂ formation by surface reactions of non-energetic OH radicals with CO molecules”
  Y. Oba, N. Watanabe, A. Kouchi, T. Hama, & V. Pirronello,
  Astrophys. J. Lett. 712, L174 (2010)
  
  
  

2009

• “Reaction routes in the CO-H₂CO-d_n-CH₃OH-d_m system clarified from H (D) exposure of solid formaldehyde at low temperatures”
  H. Hidaka, M. Watanabe, A. Kouchi, & N. Watanabe,
  Astrophys. J. 702, 291 (2009)
  
  
• “Formation mechanisms of oxygen atoms in the O(³P_J) state from the 157 nm photoirradiation of amorphous water ice at 90 K”
  T. Hama, A. Yabushita, M. Yokoyama, M. Kawasaki, & N. Watanabe,
  J. Chem. Phys. 131, 114511 (2009)
  
  
• “Hydrogen isotope exchange and H(D) atom addition reaction of solid formaldehyde on amorphous solid water at low temperatures”
  H. Hidaka, M. Watanabe, A. Kouchi, & N. Watanabe,
  J. Phys. Conf. Ser. 194, 132024 (2009)
  
  
• “Nonenergetic reactions between atomic hydrogen and molecules on interstellar grain surfaces”
  N. Watanabe, A. Kouchi. H. Hidaka, Y. Oba, & N. Miyauchi,
  J. Phys. Conf. Ser. 194, 012044 (2009)
  
  
• “Formation mechanisms of oxygen atoms in the O(¹D₂) state from the 157 nm photoirradiation of amorphous water ice at 90 K”
  T. Hama, A. Yabushita, M. Yokoyama, M. Kawasaki, & N. Watanabe,
  J. Chem. Phys. 131, 114510 (2009)
  
  
• “Formation of compact amorphous H₂O ice by codeposition of hydrogen atoms with oxygen molecules on grain surfaces”
  Y. Oba, N. Miyauchi, H. Hidaka, T. Chigai, N. Watanabe, & A. Kouchi,
  Astrophys. J. 701, 464-470(2009)
  
  
• “Translational and rotational energy measurements of photodesorbed water molecules in their vibrational ground state from amorphous solid water”
  A. Yabushita, T. Hama, M. Yokoyama, M. Kawasaki, S. Andersson, R. N. Dixon, M. N. R. Ashfold, & N. Watanabe,
  Astrophys. J. Lett. 699, L80-L83 (2009)
  
  
• “Production of multiply charged ions from the 4d photoionization of Cs⁺”
  T. Koizumi, T. M. Kojima, M. Sano, & N. Watanabe,
  J. Phys. Conf. Ser. 163, 012099 (2009)
  

2008

• “Ice surface reactions: A key to chemical evolution in space”
  Naoki Watanabe & Akira Kouchi,
  Prog. Surf. Sci. 83, 439-489 (2008)
  
  
• “Release of hydrogen molecules from the photodissociation of amorphous solid water and polycrystalline ice at 157 and 193 nm”
  A. Yabushita, T. Hama, D. Iida, N. Kawanaka, M. Kawasaki, N. Watanabe, M. N. R. Ashfold, & H-P. Loock,
  J. Chem. Phys. 129, 044501 (2008)
  
  
• “Size distributions of chondrules and dispersed droplets caused by liquid breakup: An application to shock wave conditions in the solar nebula”
  T. Kadono, M. Arakawa, & A. Kouchi,
  Icarus, 197, 621 (2008)
  
  
• “Measurements of energy partitioning in H₂ formation by photolysis of amorphous water ice”
  A. Yabushita, T. Hama, D. Iida, N. Kawanaka, M. Kawasaki, N. Watanabe, M. N. R. Ashfold, & H-P. Loock,
  Astrophys. J. Lett., 682, L69 (2008)
  
  
• “Formation of hydrogen peroxide and water from the reaction of cold hydrogen atoms with solid oxygen at 10 K”
  N. Miyauchi, H. Hidaka, T. Chigai, A. Nagaoka, N. Watanabe & A. Kouchi,
  Chem. Phys. Lett. 456, 27-30 (2008)
  
  
• “Structural effects of ice grain surfaces on the hydrogenation of CO at low temperatures”
  H. Hidaka, N. Miyauchi, A. Kouchi & N. Watanabe,
  Chem. Phys. Lett. 456, 36-40 (2008)
  
  
  

2007

• “Laboratory Simulation of competition between hydrogenation and photolysis in the chemical evolution of H₂O-CO ice mixtures”
  N. Watanabe, O. Mouri, A. Nagaoka, T. Chigai, A. Kouchi & V. Pirronello,
  Astrophys. J. 668, 1001 (2007)
  
  
• “Temperature, composition, and hydrogen isotope effect in the hydrogenation of CO at 10 - 20 K”
  H. Hidaka, A. Kouchi & N. Watanabe,
  J. Chem. Phys. 126, 204707 (2007)
  
  
• “Effective rate constants for the surface reaction between solid methanol and deuterium atoms at 10 K”
  A. Nagaoka, N. Watanabe, & Akira Kouchi,
  J. Phys. Chem. A 111, 3016 (2007)
  
  
  

2006

• “Dependence of the effective rate constants for the hydrogenation of CO on the temperature and composition of the surface”
  N. Watanabe, A. Nagaoka, H. Hidaka, T. Shiraki, T. Chigai, & A. Kouchi,
  Planet. Space Sci., (2006) 54, 1107 (2006)

上記以前の論文

解説・総説

• ”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”,
  渡部直樹，香内晃，羽馬哲也，大場康弘，千貝健
  表面科学，33, 661 (2012)
  
  
• 「極低温星間塵表面原子反応による水分子生成」
  大場康弘，宮内直弥，千貝健，日高宏，渡部直樹，香内　晃
  地球化学　43, 117-131　(2009)
  
  
• 「宇宙における水分子生成過程の解明に至まで」
  香内晃，渡部直樹
  雪氷，71，395　(2009)
  
  
• 「宇宙雪氷に関する研究の進展」
  香内晃
  雪氷研究の系譜，p.85 (2009)

• 「分子雲で生じる低温表面反応：表面実験で探る分子進化」
  日高宏，渡部直樹．香内晃
  低温科学，66，13,　(2008)

• 「アモルファス氷星間塵：宇宙における化学進化の舞台」
  渡部直樹，香内　晃，毛利織絵，長岡明宏，日高　宏
  J. Vac. Soc. Jpn. (日本真空協会誌） 50, 282-290（2007）
  
  
• 「星間塵表面での低温水素原子反応による分子進化」
  渡部直樹，長岡明宏，日高宏，香内晃，
  固体物理11　特集号「新しい水素の科学」41, p.755-764 (2006)

• 「星間塵表面反応によるメタノールの重水素濃集機構」
  長岡明宏，渡部直樹，日高宏，香内晃，
  日本惑星科学会誌，15, p.4-11 (2006)
  
  
• 「星間塵表面反応による星間分子の重水素濃集メカニズム」
  渡部直樹，長岡明宏，日高宏，香内晃，
  日本惑星科学会誌，14, p.175-182 (2005)
  
  
• 「低温表面反応実験で探る星間塵上での分子進化」
  渡部直樹，香内　晃，
  日本物理学会誌，60, p.39-43 (2005)

• 「星間塵上でのホルムアルデヒド，メタノールの生成機構－実験室からのアプローチ－」
  渡部直樹，白木隆裕，香内　晃，
  日本天文学会誌：天文月報 97, p.101-106 (2004)

• 「星間塵表面反応による有機分子生成および重水素濃集機構」
  渡部直樹，香内晃，白木隆裕，長岡明宏，日高宏，　
  日本惑星科学会誌，13, p.226-232 (2004)

上記以前の論文

国際会議発表

招待講演

2013

• N. Watanabe, T. Hama, Y. Oba, K. Kuwahata, A. Kouchi, Y. Kimura, V. Pirronello, “Physics and Chemistry of Hydrogen on Cosmic Dust: Diffusion, Spin Temperatures, and Water formation”, First Workshop on Experimental Laboratory Astrophysics , Kauai, Hawaii, USA, 25-27 Feb., (2013)
  
• N. Watanabe, “Physicochemical Processes of Hydrogen on Ice: A Key for Chemical Evolution in Space”, 2nd International Symposium on Hierarchy and Holism , Tokyo, Japan, 19-21 Feb., (2013)
  
  

2012

• N. Watanabe, “Surface diffusion mechanism of atomic hydrogen and the ortho/para ratio of nascent H₂ molecule on amorphous solid water at around 10 K”, International Lorentz Center Workshop: Dynamical Phenomena at Surfaces: The Role of Complexity , Leiden, The Netherlands, 26-30 Nov., (2012)
  
• N. Watanabe, “Grain surface processes at very low temperatures: hydrogen diffusion and tunneling reactions”, Gordon Research Conference, Radiation Driven Processes in Physics, Chemistry, Biology, and Industry , New Hampshir, USA, 29 Jul- 3 Aug (2012)
  
• H. Hidaka, M. Watanabe, A. Kouchi, N. Watanabe, “Formation of deuterated formaldehyde on low temperature surfaces: isotope effect of quantum tunneling reactions”, ASTROCHEM 2012 , Kolkata, India, 10-13 Jul (2012)
  
• N. Watanabe, T. Hama, H. Hidaka, A. Kouchi, “Spin temperatures of hydrogen and water molecules on amorphous solid water”, ASTROCHEM 2012 , Kolkata, India, 10-13 Jul (2012)
  
• H. Hidaka, M. Watanabe, A. Kouchi, N. Watanabe, “Formation routes of deuterated formaldehyde and methanol by the tunneling reaction on amorphous solid water at 10-20 K”, 30th COSPAR Scientific Assembly , Mysore, India, 14-22 Jul (2012)
  
• N. Watanabe, T. Hama, Y. Oba, H. Hidaka, A. Kouchi, T. Chigai, “Hydrogen processes on dust grains: H atom diffusion and water formation”, 30th COSPAR Scientific Assembly , Mysore, India, 14-22 Jul (2012)
  
• N. Watanabe, “Hydrogen chemistry on cold grain surfaces”, XVIIIth Symposium on Atomic, Cluster, and Surface Physics , Alpe d'Huez, France, 22-27 Jan (2012)
  
  

2011

• N. Watanabe, “Hydrogen tunneling reaction and its isotope effect at a low temperature ice surface: Origin of deuterium enrichments in interstellar formaldehyde and methanol”, International Conference on the Research of Chemistry and Physics of Matrix Isolated Species (MATRIX2011), Vancouver, Canada, 11 July (2011)
  
  

2010

• Y. Oba, N. Miyauchi, T. Chigai, H. Hidaka, N. Watanabe, A. Kouchi, “Structure of H₂O ice formed by surface reactions of oxygen molecules with hydrogen atoms at low temperatures”, 12th International Conference on the Physics and Chemistry, Sapporo, Japan, 10 September (2010)
• N. Watanabe, H. Hidaka, T. Hama, A. Kouchi, T. Chigai, Y. Kimura, “Ice surface chemistry of hydrogen atom in space"”, 27th European Conference on Surface Science, Groningen, the Netherlands, 30 August (2010)
• N. Watanabe, T. Hama, H. Hidaka, A. Kouchi, “Surface processes of atomic hydrogen at very low temperatures relevant to astrochemistry”, 24th International Conference on Atomic Collisions in Solids, Klakow, Poland, 22 July (2010)
• N. Watanabe, H. Hidaka, T. Hama, A. Kouchi, Y. Kimura,“Chemisrty of atomic hydrogen on interstellar ice grains at very low temperatures” Western Pacific Geophysics Meeting: Laboratory Simulations for Astrophysics, Taipei, Taiwan, June 22-25, (2010)
• N. Watanabe, “Physicochemical processes of atomic hydrogen on amorphous solid water at very low temperatures” 239th American Chemical Society National Meeting & Exposition - San Francisco, USA, March 21-25, (2010)
  
  

2009

• N. Watanabe, A. Kouchi, H. Hidaka, Y. Oba, N. Miyauchi, Y. Kimura, “Tunneling reactions of atomic hydrogen and molecules on amorphous solid water at very low temperatures”, Horiba-ISSP International Symposium on Hydrogen and Water in Condensed Matter Physics, Chiba, Japan, 12-16 October (2009)
• N. Watanabe, “Nonenergetic Reactions Between Hydrogen And Molecules On Interstellar Grain Surfaces”, XXVI International Conference on Photonic, Electronic, and Atomic Collisions”, Michigan, USA, 22-28 July (2009)
• N. Watanabe, “Reactions of Hydrogen Atoms and Molecules on Amorphous Solid Water at Very Low Temperatures”, Gordon Research Conference; Matrix-Isolated Species, Physics & Chemistry of, Oxford, UK, 19-24 July (2009)
  
  

2008

• N. Watanabe, “Experimental approach to grain surface reactions of hydrogen and deuterium atoms”, International Lorentz Center Workshop: Interstellar Surfaces: From Laboratory to Models, Leiden, The Netherlands, 5-10 Oct., (2008)
• N. Watanabe, H. Hidaka, N. Miyauchi, A. Kouchi, “Grain surface chemistry: fractionation routes”, The Molecular Universe: International Meeting on Physics and Chemistry of Interstellar Medium, Arcachon, France, 5-8 May (2008)
  
  

2007

• N. Watanabe, A. Nagaoka, H. Hidaka, A. Kouchi, “Laboratory study of chemical processes on interstellar ice grains”, Extraterrestrial ice, IUGG General Assembly 2007, Perugia, Italy, 2-13 July (2007)
• N. Watanabe, A. Nagaoka, O. Mouri, A. Kouchi, V. Pirronello, “Simultaneous Irradiation Experiments of H₂O-CO Binary Ice with UV Photons and Cold H Atoms”, Asia-Oceania Geosciences Society Annual Meeting, Bangkok, Thailand, 3 August (2007)
• N. Watanabe, H. Hidaka, A. Nagaoka, A. Kouchi, “Reactions of hydrogen and deuterium atoms with CO, formaldehyde, and methanol on ice grains”, International Astrophysics and Astrochemistry Meeting: Molecules in Space & Laboratory, Paris, France, 14-18 May (2007)
  
  

2006

• A. Kouchi, N. Watanabe “Formation of organic molecules by the tunneling reaction of H with solid CO on interstellar grain”, Misasa International Symposium, Kurayoshi, Japan, (2006)
• A. Kouchi, “Diamond Formation in Interstellar Clouds and Parent Bodies of Carbonaceous Chondrites”, 19th General Meeting of the International Mineralogical Association, Kobe, Japan, 26 July (2006)
  
  

2005

• N. Watanabe, “Formation of Simple Organic Molecules by Hydrogenation on Grain Surfaces”, International Astronomical Union Symposium: Astrochemistry, California, USA, 28 Augyst- 2 September (2005)
• N. Watanabe, A. Nagaoka, A. Kouchi, “Formation of deuterated methanol by surface reactions at 10 K”, Asia-Oceania Geosciences Society Annual Meeting, Singapore (2005)
• N. Watanabe, A. Nagaoka, T. Shiraki, H. Hidaka, A. Kouchi, “Evolution of CO molecule on dusts in dense core: formation of H₂CO and CH₃OH”, The 4th International Symposium on New Trends of Physics, Recent Advances in Astrophysics and Planetary Science ?from the early universe to the Solar system-, Sapporo, Japan (2005)
  
  

上記以前の招待講演

一般講演

2013 - present

• A. Kouchi, N. Watanabe, H. Hidaka, T. Hama, S. Nakatsubo, K. Fujita, K. Sinbori, M.Ikeda,“Development of an ultrahigh vacuum low temperature transmission electron　microscope for in situ observation of ice”, First Workshop on Experimental Laboratory Astrophysics, Hawaii, USA, February 25-27, ﾎﾟｽﾀｰ（2013）
• T. Hama, N. Watanabe, A. Kouchi,“Experimental measurements of nuclear-spin temperature of thermally desorbed water molecules from ice”, First Workshop on Experimental Laboratory Astrophysics, Hawaii, USA, February 25-27, ﾎﾟｽﾀｰ（2013）
• Y. Oba, T. Chigai, N. Watanabe, A. Kouchi, Y. Osamura,“Hydrogen isotopic fractionation of solid methylamine through atomic-surface reactions at 10K, First Workshop on Experimental Laboratory Astrophysics, Hawaii, USA, February 25-27, ﾎﾟｽﾀｰ（2013）
• K. Kuwahata, T. Hama, N. Watanabe, A. Kouchi, Y. Kimura, V. Pirronello,“Surface diffusion mechanism of H and D atoms on amorphous solid water”, First Workshop on Experimental Laboratory Astrophysics, Hawaii, USA, February 25-27, ﾎﾟｽﾀｰ（2013）
  
  

2012

• Y.Oba,“Laboratory study of solid H₂O formation through quantum tunneling reaction OH + H₂ at 10 K”, Dynamical Phenomena at Surfaces: The Role of Complexity, Leiden, Netherlands, November26-30, ﾎﾟｽﾀｰ（2012）
• T. Hama, N. Watanabe, K. Kouchi,“Laboratory measurements of spin temperature of water molecules from ice in thermal desorption”, Workshop on Interstellar Matter 2012, Sapporo, Japan, October17-19, ﾎﾟｽﾀｰ（2012）
• Y. Oba, T. Chigai, N. Watanabe, A. Kouchi,“Deuterium fractionation of methylamine through atomic grain-surface reactions at low temperatures: implication for the possible D/H ratio in molecular clouds”, Workshop on Interstellar Matter 2012, Sapporo, Japan, October17-19, ﾎﾟｽﾀｰ（2012）
• Y. Oba, N. Watanabe, T. Hama, K. Kuwahata, H. Hidaka, A. Kouchi,“Water formation by OH + H₂ on grain surfaces at 10 K: large isotope effects by quantum tunneling”, Workshop on Interstellar Matter 2012, Sapporo, Japan, October17-19, ﾎﾟｽﾀｰ（2012）
• K. Kuwahata, T. Hama, N. Watanabe, A.Kouchi, Y.Kimura,“ The surface diffusion mechanism of hydrogen atom on interstellar ice”, Workshop on Interstellar Matter 2012, Sapporo, Japan, October17-19, ﾎﾟｽﾀｰ（2012）
• T. Hama,“Spin temperature of water molecules desorbed from ice produced by photolysis of a CH₄/O₂ solid mixture and its implication in a cometary coma”, Gordon Research Conference on Radiation Chemistry,　New Hampshire, USA, July29-August3, ﾎﾟｽﾀｰ（2012）
• Y. Oba,“Formation of solid H₂O through surface reactions of H₂ with OH radicals produced by microwave-induced H₂O plasma”, Gordon Research Conference on Radiation Chemistry, New Hampshire, USA, July29-August3, ﾎﾟｽﾀｰ（2012）
• T. Hama, K. Kuwahata, A. Kouchi, N. Watanabe,“The diffusion mechanism of H atom on the surface of amorphous solid water: quantum tunneling or thermal hopping”, 28th Symposium on Chemical Kinetics and Dynamics, Fukuoka, Japan, June 6-8, 口頭（2012）
• T. Hama, N. Watanabe, A. Kouchi,“Nuclear-Spin Temperature of Water Molecules Thermally Desorbed from Ice: A Laboratory Study”, Asteroid, Comets, Meteors 2012, Niigata, Japan, May16-20, 口頭（2012）
• Y. Oba, N. Watanabe, H. Hama, K. Kuwahata, H. Hidaka, A. Kouchi,“Surface Chemical Reactions to the Formation of Solid H₂O and its Isotopologues on Interstellar Grains at 10K”, Asteroid, Comets, Meteors 2012, Niigata, Japan, May16-20, 口頭（2012）
• Y. Oba, N.Watanabe, A.Kouchi,“Hydrogen Isotope Substitution of Solid Methylamine (CH₃NH₂) on a Low-Temperature Surface”, Asteroid, Comets, Meteors 2012, Niigata, Japan, May16-20, ﾎﾟｽﾀｰ（2012）
• Y. Oba，N. Watanabe, T. Hama, A. Kouchi, V. Pirronello,“Low-temperature Surface Reactions of Non-energetic OH Radicals of Astrophysical Interest”, 18^th Symposium on Atomic, Cluster, and Surface Physics SASP2012, Alpe d'Huez, France, January 22-27, ﾎﾟｽﾀｰ (2012)
• T. Hama, N. Watanabe, A. Kouchi,“Spin temperature measurement of thermally desorbed water molecules from water ice prepared at 8K”, 18^th Symposium on Atomic, Cluster, and Surface Physics SASP2012, Alpe d'Huez, France, January 22-27, ﾎﾟｽﾀｰ (2012)
  
  

2011

• Y. Oba, N. Watanabe,“A. Kouchi,Isotope effect on the formation of H₂O isotopologues by quantum tunneling reactions of H₂/HD/D₂ with non-energetic OH/OD radicals at low temperatures”, International Conference on the Research of Chemistry and Physics of Matrix Isolated Species MATRIX2011,Vancouver, Canada, July 10-15, 口頭(2011）
• T. Hama, N. Watanabe, Y. Kimura, A. Kouchi, T. Chigai, V. Pirronello,“Diffusion mechanism of hydrogen and deuterium atoms and the spin temperature of molecules on the surface of water ice at 8 - 15 K”, IAU Symposium280: The Molecular Universe, Toledo, Spain, May 29‐June 3, ﾎﾟｽﾀｰ (2011)
• H. Hidaka, M. Watanabe, A. Kouchi, N. Watanabe,“FTIR measurements of ammonia formation by the successive H-atom addition to N-atom in an N₂ matrix at 10K”, IAU Symposium280: The Molecular Universe, Toledo, Spain, May 29‐June 3, ﾎﾟｽﾀｰ (2011)
• Y. Oba, N. Watanabe, A. Kouchi, T. Hama, V. Pirronello,“Neutral radical-molecule reactions CO + OH on cold interstellar ices”, IAU Symposium280: The Molecular Universe, Toledo, Spain, May 29‐June 3, ﾎﾟｽﾀｰ (2011)
• Y. Oba, N. Miyauchi, H. Hidaka, T. Chigai, N. Watanabe, A. Kouchi,“Sequential hydrogenation of molecular oxygen on cold surfaces: reaction kinetics and structure of formed H₂O ice”, IAU Symposium280: The Molecular Universe, Toledo, Spain, May 29‐June 3, ﾎﾟｽﾀｰ (2011)
  
  

2010
　

　　　　　
• Y. Oba, N. Watanabe, A. Kouchi, T. Hama, V. Pirronello,“Experimental studies on surface reactions of CO molecules with cold OH radicals at 10-40 K”, Pacifichem 2010, Hawaii, USA, December 15-20, 口頭（2010）
• H. Hidaka, M. Watanabe, A. Kouchi, N. Watanabe,“Ammonia formation by the successive hydrogenation of N atom trapped in solid N₂ at below 30K”, Pacifichem 2010, Hawaii, USA, December 15-20, 口頭（2010）
• T. Hama, M. Yokoyama, A. Kouchi, N. Watanabe,“Spectroscopic approach to physicochemical processes on ices at low temperatures”, Pacifichem 2010, Hawaii, USA, December 15-20, 口頭（2010）
• N. Watanabe, T. Hama, A. Kouchi, T. Chigai, V. Pirronello , Y. Kimura,“Laboratory measurements of atomic hydrogen diffusion and the ortho-para conversion of nascent H₂ molecules on amorphous solid water”, Workshop on Interstellar Matter2010 ISM2010, Sapporo, Japan, September 13-15, ﾎﾟｽﾀｰ (2010)
• H. Hidaka, M. Watanabe, A. Kouchi, and N. Watanabe,“Ammonia formation by the successive hydrogenation of N atom trapped solid N₂ at low temperature”, Workshop on Interstellar Matter2010 ISM2010, Sapporo, Japan, September 13-15, ﾎﾟｽﾀｰ (2010)
• T. Hama, M. Yokoyama, A. Yabushita, and M. Kawasaki,“Formation of oxygen molecules following vacuum ultraviolet photodissociation of amorphous solid water”, Workshop on Interstellar Matter2010 ISM2010, Sapporo, Japan, September 13-15, ﾎﾟｽﾀｰ (2010)
• H. Hidaka, N. Miyauchi, A. Kouchi, N. Watanabe,“Morphology effects in hydrogenation of CO at low temperature ice surfaces”, 12^th International Conference on the Physics and Chemistry PCI2010, Sapporo, Japan, September 5-10, ﾎﾟｽﾀｰ (2010)
• N. Watanabe, H. Hidaka, A. Kouchi, A. Nagaoka,“Effect of amorphous solid water on surface tunneling reactions of atomic hydrogen”, 12^th International Conference on the Physics and Chemistry PCI2010, Sapporo, Japan, September 5-10, ﾎﾟｽﾀｰ (2010)
• Y. Oba, N. Miyauchi, T. Chigai, H. Hidaka, N. Watanabe, A. Kouchi,“Structure of H₂O ice formed by surface reactions of oxygen molecules with hydrogen atoms at low temperatures”, 12^th International Conference on the Physics and Chemistry PCI2010, Sapporo, Japan, September 5-10, 口頭 (2010)
• T. Hama, A. Yabushita, M.Kawasaki, N. Watanabe,“Photodesorptions of OH radical and oxygen atom following vacuum ultraviolet photodissociation of water ice”, 12^th International Conference on the Physics and Chemistry PCI2010, Sapporo, Japan, September 5-10, 口頭 (2010)
• T. Hama, A. Yabushita, M. Kawasaki, N. Watanabe,“Desorption mechanisms of photoproducts following 157 nm irradiation of water ice”, 27^th European Conference on Surface Science ECOSS 27, Groningen, the Netherlands, August 29-September 3, 口頭 (2010)
• T. Hama,“A desorption mechanism of water following vacuum-ultraviolet irradiation of amorphous solid water, oral presentations”, 24^th International Conference on Atomic Collisions in Solids ICACS- 24, Krakow, Poland, July 18-23, 口頭 (2010)
• Y. Oba, N. Watanabe, A. Kouchi, T. Hama, V. Pirronello,“Surface Reactions of CO Molecules with OH Radicals at Low Temperatures”, Western Pacific Geophysics Meeting, Taipei, Taiwan, June 22-25, ﾎﾟｽﾀｰ (2010)
• H. Hidaka, M. Watanabe, A. Kouchi, N. Watanabe, “Ammonia formation by the successive hydrogenation of N atoms trapped in solid N₂ at 10 K”, 239 ^th ACS national meeting , San Francisco, California, March 21-25, 口頭 (2010)
  
  

2009

　　　　
• H. Hidaka, M. Watanabe, A.Kouchi, N. Watanabe,“Quantum tunneling in the H-D substitution and the H (D) atom addition reactions of formaldehyde on low temperature surfaces”, Horiba-ISSP International Symposium on “Hydrogen and water in condensed matter physics” , Seimei-no-Mori Resort,Chiba, Oct.12-16, 口頭 (2009) 　　　　
• Y. Oba, N. Miyauchi, T. Chigai, H. Hidaka, N. Watanabe, A. Kouchi,“Surface reactions of hydrogen atoms with oxygen molecules at low temperatures: A potential route for the H ₂O formation in space”, Horiba-ISSP International Symposium on “Hydrogen and water in condensed matter physics” , Seimei-no-Mori Resort, Chiba,Oct.12-16,ﾎﾟｽﾀｰ (2009) 　　　　
• H. Hidaka, M. Watanabe, A. Kouchi, N. Watanabe,“Hydrogen isotope exchange and H(D) atom addition reaction of solid formaldehyde on amorphous solid water at low temperatures”, XXVI ICPEAC , Western Michigan University, Michigan, USA, July22-27, ﾎﾟｽﾀｰ (2009) 　　　　
• Y. Oba, N. Miyauchi, T. Chigai, H.Hidaka, N. Watanabe, A. Kouchi,“Formation of compact amorphous H₂O ice by a reaction of hydrogen atoms with oxygen molecules at low temperatures”, Gordon Research Conferences, Physics & Chemistry of Matrix-Isolated Species , Oxford, UK, July 19-24, ﾎﾟｽﾀｰ (2009)
  
  

2008

• A. Kouchi, “ Formation of amorphous H ₂O ice from the reaction of cold H atoms with solid O₂ at 10 K”, Cosmic Dust-Near & Far , Heidelberg , September8-12, 口頭 (2008) 　　　　
• A. Nagaoka, N. Watanabe, A. Kouchi, “ Effective rate constants for H-D substitution reactions in methanol on the surface at 10 K”, Workshop for Interstellar Matter 2008 , Hokkaido Univ., September4-6, ﾎﾟｽﾀｰ (2008) 　　　　
• N. Watanabe, O. Mouri, A. Nagaoka, T. Chigai, A. Kouchi, V. Pirronello, “Laboratory simulation of competition between hydrogenation and photolysis in the chemical evolution of H ₂O-CO ice mixtures”, Workshop for Interstellar Matter 2008 , Hokkaido Univ., September4-6, ﾎﾟｽﾀｰ (2008) 　　　　
• N. Watanabe, H. Hidaka, A. Nagaoka, A. Kouchi, “Catalytic effect of amorphous solid water on surface reactions of hydrogen atoms at very low temperatures”, Workshop for Interstellar Matter 2008 , Hokkaido Univ., September4-6, ﾎﾟｽﾀｰ (2008) 　　　　
• H. Hidaka, M. Watanabe, A. Kouchi, N. Watanabe, “H-D substitution reactions of formaldehyde on icy grain surfaces at low temperatures”, Workshop for Interstellar Matter 2008 , Hokkaido Univ., September4-6, ﾎﾟｽﾀｰ (2008) 　　　　
• H. Hidaka, N. Miyauchi, A. Kouchi, N. Watanabe, “Structural effects of icy grain surfaces in CO hydrogenation at a low temperature”, Workshop for Interstellar Matter 2008 , Hokkaido Univ., September4-6, ﾎﾟｽﾀｰ (2008)
• Y. Oba, N. Miyauchi, T. Chigai, H. Hidaka, N. Watanabe, and A. Kouchi, “Effective formation of H₂O by the H-addition to solid O₂ on amorphous D₂O ice”, Workshop for Interstellar Matter 2008, Hokkaido Univ., September4-6, ﾎﾟｽﾀｰ (2008)
• A. Kouchi, N. Miyauchi, H. Hidaka, T. Chigai, A. Nagaoka and N. Watanabe, “H₂O ice formation from the reaction of cold H atoms solid O₂ at 10K”, Solar System Ices , Oxnard, CA USA, May5-8, ﾎﾟｽﾀｰ (2008)
• H. Hidaka, N. Miyauchi, A. Kouchi, N. Watanabe, “The effects of ice morphology in hydrogenation of CO at low temperature ice surface”, The Molecular Univers: an International Meeting on Physics and Chemistry of the Intersteller Medium , Arcachon, France, May5-8, ﾎﾟｽﾀｰ (2008)
  
  

2007

　　　　
• H. Hidaka, N. Watanabe, A. Kouchi, “ The structural effect of ice grain surfaces on the hydrogenation of CO at low temperatures”, International Conference on Molecules in Space and Laboratory , Paris, France, May11-18, ﾎﾟｽﾀｰ (2007)

　　　

上記以前の一般講演

国内学会発表（招聘講演）

2006 - present

• 羽馬哲也,「天文学におけるオルトーパラ分子比の意義と実験研究によるアプローチ”, 第２回卓越拠点物理化学若手ワークショップ 核スピン異性体 (オルト－パラ)分子科学の新展開～孤立分子から凝縮相・天体観測への応用～, 京都大学, 3/5(2013)
• N. Watanabe,“Physicochemical Processes of Hydrogen on Ice: A Key for Chemical Evolution in Space”, 2nd International Symposium on Hierarchy and Holism, National Center of Sciences, Tokyo, February19-21 (2013)
• H.Hidaka,“Tunneling chemical reactions on low-temperature interstellar grain surfaces”, One-day symposium on E-ring based molecular science, Tokyo Metropolitan University, February7 (2013)
• 香内晃, 「地球の雪・宇宙の雪」, 第51回日本臨床化学会年次学術集会, 札幌医科大学, 8/26-28(2011)
• 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, “Grain-surface reactions: chemical evolution and deuterium fractionation in molecular clouds (星間塵表面反応による化学進化および重水素濃集)”, JPGU　Meeting 2011, 幕張メッセ国際会議場, 5/22-27（2011）
• A. Kouchi, Y. Oba, N. Miyauchi, H. Hidaka, N. Watanabe, “Formation of interstellar ice by low temperature surface atomic reactions”, CRYO2009,Sapporo, Japan, July 19-23（2009）
• A. Kouchi,　N. Watanabe,　H. Hidaka,　N. Miyauchi,　Y. Oba, “Chemical evolution in molecular clouds by surface atomic reactions at low temperatures (極低温表面原子反応による分子雲での分子進化) ”, JPGU　Meeting 2009, 幕張メッセ国際会議場, 5/16-21（2009）
• 渡部直樹，日高宏，宮内直弥，香内晃, ｢星間空間における化学進化と低温氷表面反応｣, 第33回原子衝突研究会, 札幌, 8/5-7 (2008)
• 日高宏, ｢星間塵表面反応に関する実験研究の現状（レビュー）｣，星間物質ワークショップ2006, 札幌, 7/31-8/2 (2006)
• 渡部直樹, ｢アモルファス氷表面における化学反応：宇宙塵表面の化学進化｣, 日本物理学会, 愛媛大, 3/27-30 (2006)

　

上記以前の招聘講演

国内学会発表（一般講演）

2013-present

• 桑畑和明，羽馬哲也，日高宏，香内晃，渡部直樹,「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」, 日本物理学会第68回年次大会, 広島大学, 3/26-29, ﾎﾟｽﾀｰ(2013)

2012

• 香内晃,「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」,　平成24年度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」, 北海道大学, 12/6-7, 口頭(2012)
• 羽馬哲也, 桑畑和明, 渡部直樹, 香内晃, 千貝健,「低温アモルファス氷表面に物理吸着した水素原子の拡散」, 第3回真空・表面科学若手勉強会会, 甲南大学, 11/12-13, ﾎﾟｽﾀｰ（2012）
• 大場康弘, 渡部直樹, 香内晃,　「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年度日本地球化学会年会, 九州大学, 9/11-13, 口頭(2012)
• 大場康弘, 千貝健, 渡部直樹, 香内晃, 「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」, 第30回有機地球化学シンポジウム, 東北大学, 8/22-23, 口頭(2012)
• 大場康弘, 渡部直樹, 羽馬哲也, 桑畑　和明, 日高　宏, 香内晃,「星間塵表面での水分子とその重水素置換体生成( Formation of H2O and its isotopologues on interstellar grains)」 日本地球惑星科学連合2012年大会, 幕張メッセ国際会議場, 5/20-25, 口頭(2012)
• 羽馬哲也, 渡部直樹, 香内晃, 「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？(Does nuclear-spin temperature of water molecules in comet coma reflect the formation temperature of the cometary ice?)」, 日本地球惑星科学連合2012年大会, 幕張メッセ国際会議場, 5/20-25, 口頭(2012)
• Y. Oba, “Potential importance of low-temperature surface reactions for the D-enrichment of methylamine in interstellar molecular clouds”, Workshop on Minerals-Water-Organics in the Early Solar System, Tokyo, May 18-19, poster(2012)
• 羽馬哲也，渡部直樹，香内晃,「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」, 日本物理学会第67回年次大会, 関西学院大学, 3/24-27, 口頭 (2012)
• 桑畑和明，羽馬哲也，渡部直樹，香内晃, 「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｣, 日本物理学会第67回年次大会, 関西学院大学, 3/24-27, 口頭（2012)

2011

• 羽馬哲也，渡部直樹，香内晃,「氷から熱脱離した水分子の原子核スピン温度測定実験」,　第2回表面科学若手研究会, 11/19-20, 理化学研究所, 和光市, ﾎﾟｽﾀｰ(2011)
• N. Watanabe, “Nonenergetic processes on grain surfaces”, Mini-Workshop on Gas-Grain Interactions in Interstellar Clouds,　Univ. of Tokyo, October 28, 口頭(2011)
• T. Hama, “Surface diffusion of atomic hydrogen on ice grains at very low temperature”, Mini-Workshop on Gas-Grain Interactions in Interstellar Clouds, Univ. of Tokyo, October 28, 口頭(2011)
• Y. Oba, “A role of reaction CO + OH for CO2 formation in dense molecular clouds”, Mini-Workshop on Gas-Grain Interactions in Interstellar Clouds, Univ. of Tokyo, October 28, 口頭(2011)
• 日高宏,　香内晃,　渡部直樹,「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年度日本地球化学会年会, 北海道大学, 9/14-16, 口頭(2011)
• 大場康弘, 渡部直樹,　香内晃,「低温表面反応による水分子生成とその同位体効果｣, 2011年度日本地球化学会年会, 北海道大学, 9/14-16, 口頭 (2011)
• 大場康弘, 渡部直樹, 香内晃, 「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｣, 第29 回有機地球化学シンポジウム, 9/1-2, 九州大学, 口頭 (2011)
• 羽馬哲也, 渡部直樹, 香内晃, 木村勇気, V. Pirronello,「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」, 第9回水素量子アトミクス研究会, 東北大学, 8/23, 口頭（2011）
• 羽馬哲也，渡部直樹，香内晃，V. Pirronello, 「重水素原子の低温氷表面における拡散｣, 日本物理学会2011年秋季大会, 富山大学, 9/21-24, 口頭（2011）
• T. Hama, N. Watanabe, A. Kouchi, M.Yokoyama, “REMPI measurements of spin temperatures of desorbed water molecules from vapor-deposited and photo-produced amorphous solid water at 8 K”, 第27回化学反応討論会,　東京工業大学,　6/8-10, 口頭　(2011)　
• 羽馬哲也, 渡部直樹, 木村勇気, 香内晃, 千貝健, “Diffusion of hydrogen and deuterium atoms and molecular hydrogen production on amorphous solid water　(水素および重水素原子の氷表面拡散と水素分子生成）”, JPGU　Meeting2011, 幕張メッセ国際会議場, 5/22-27, 口頭　(2011）
• 大場康弘, 渡部直樹, 香内晃,　羽馬哲也, ピロネロ バレリオ, “CO₂ formation through radical-molecule reactions on a solid surface inside dense molecular clouds　(高密度分子雲内部におけるラジカル－分子表面反応による二酸化炭素生成）JPGU　Meeting2011, 幕張メッセ国際会議場, 5/22-27, 口頭　(2011）

2010

• Yasuhiro Oba, Naoki Watanabe, Akira Kouchi, Tetsuya Hama, Valerio Pirronello, “Experimental study of CO₂ and H₂CO₃ formation by surface reactions of non-energetic OH radicals with CO molecules at very low temperatures”, 第26回化学反応討論会 , 広島大学, 6/2-4, 口頭 (2010)
• Masaaki, Yokoyama, Tetsuya Hama, Akihiro Yabushita, Masahiro Kawasaki, Stefan Andersson, Colin M. Western, Michael N. R. Ashfold, Richard N. Dixon, Naoki Watanabe, “A desorption mechanism of water following vacuum-ultraviolet irradiation on amorphous solid water”, 第26回化学反応討論会 , 広島大学, 6/2-4, ポスター, (2010)
• Masaaki, Yokoyama, Tetsuya Hama, Akihiro Yabushita, Masahiro Kawasaki, “Role of OH radicals in the formation of oxygen molecules following vuv photodissociation of water ice”, 第26回化学反応討論会 , 広島大学, 6/2-4, ポスター, (2010)
• Tetsuya Hama, Yokoyama Masaaki, Akihiro Yabushita, Masahiro Kawasaki, Naoki Watanabe, “A desorption mechanism of water following vacuum-ultraviolet irradiation of amorphous solid water”, (アモルファス氷への真空紫外光照射による水分子脱離メカニズム) , JPGU　Meeting2010 , 幕張メッセ国際会議場, 5/23-28, 口頭, (2010)
• Tetsuya Hama, Masaaki Yokoyama, Akihiro Yabushita, Masahiro Kawasaki, “ Internal energy distributions of oxygen molecules produced by 157 nm photodissociation of amorphous solid water”, (氷の光分解から生成した酸素分子の電子励起状態) , 第10回　分子分光研究会, 東京工業大学デジタル多目的ホール, 　5/14-15, 口頭, (2010)
  

2009

• 日高宏，渡辺元浩，香内晃，渡部直樹, ｢低温固体表面における水素，窒素原子結合反応によるアンモニア分子生成｣, 日本惑星科学会2009年秋季講演会, 東京大学本郷キャンパス, 9/28-30, 口頭 (2009)
• 渡辺元浩，日高宏，渡部直樹，香内晃, ｢氷星間塵表面におけるホルムアルデヒドの重水素化経路の特定｣,　 日本惑星科学会2009年秋季講演会, 東京大学本郷キャンパス, 9/28－30, ﾎﾟｽﾀｰ (2009)
• 日高宏，渡辺元浩，香内晃，渡部直樹,｢低温ホルムアルデヒド固体表面における水素・重水素原子トンネル反応｣, 日本物理学会 2009年秋季大会, 熊本大学, 9/25-27 , 口頭 (2009)
• 渡部直樹，香内晃，木村勇気, ｢低温アモルファス氷表面における水素原子の拡散・脱離｣, 日本物理学会 2009年秋季大会, 熊本大学, 9/25-27, 口頭 (2009)
• 大場康弘, 渡部直樹, 日高宏, 香内晃, Varelio Pirronello, ｢極低温表面反応CO+OHによるCO₂分子生成｣, 日本地球化学会第56回年会, 広島大学, 9/15-17,口頭 (2009)
• Yasuhiro Oba, Naoya Miyauchi, Hiroshi Hidaka, Naoki Watanabe, Akira Kouchi, “Formation of amorphous H₂O ice by surface atomic reactions at low temperatures”, (極低温表面原子反応によるアモルファスH₂O氷生成), JPGU　Meeting2009 , 幕張メッセ国際会議場, 5/16-21, 口頭 (2009)
• Yuki Kimura; Valerio Pirronello; Akira Kouchi, Naoki Watanabe, “ Life time of hydrogen atom on amorphous CO ice”, (水素原子の表面拡散は速いか？：CO固体表面の場合) , JPGU　Meeting2009 , 幕張メッセ国際会議場, 5/16-21, 口頭, (2009)
• 渡部直樹, ｢低温氷表面での水素原子-分子反応：宇宙における化学進化を探る｣, “The trend of chemical reaction dynamics - from atomic collision to biomolecular analysis”, 理研シンポジウム「原子衝突から生体分子分析まで拡がる化学反応研究の最前線」, 理化学研究所, 1/22-22, 口頭 (2009)
  

2008

• 香内 晃，渡部直樹，日高 宏，宮内直弥，大場康弘，千貝 健, ｢分子雲における表面原子反応による分子進化｣, アストロバイオロジーワークショップ2008 , 葉山, 12/20-21, 口頭 (2008)
• 香内 晃, ｢極低温表面原子反応による氷星間塵上での分子進化｣, 微生物学会, 11/26-29, 北大, 口頭 (2008)
• 宮内直弥, 大場康弘, 千貝健, 日高宏, 渡部直樹, 香内晃, ｢水素原子付加反応による水分子生成機構 -アモルファス氷の触媒的効果-｣,第7回 水素量子アトミクス研究会,新潟大学,11/12-22, 口頭 (2008)
• 日高宏，渡辺元浩，香内晃，渡部直樹, ｢低温ホルムアルデヒド表面における水素・重水素原子交換反応｣, 第7回 水素量子アトミクス研究会,新潟大学, 11/21-22, 口頭, (2008)
• 大場康弘, 宮内直弥, 千貝健, 日高宏, 渡部直樹、香内晃, ｢極低温表面原子反応O ₂+Hによる水分子生成　?アモルファス氷の触媒効果?｣, 日本惑星科学会2008年秋季講演会,九州大学, 11/1-3, 口頭 (2008)
• 大場康弘, 宮内直弥, 千貝健, 日高宏, 渡部直樹, 香内晃, ｢極低温表面原子反応による水分子生成｣, 2008年度日本地球化学会第55回年会,東京大学, 9/17-21, 口頭 (2008)
• A. Kouchi, “ Formation of amorphous H ₂O ice from the reaction of cold H atoms with solid O₂ at 10 K”, Cosmic Dust-Near & Far , Heidelberg ,Sep.8-12(Sep.11), 口頭 (2008)
• A. Nagaoka, N. Watanabe, A. Kouchi, “ Effective rate constants for H-D substitution reactions in methanol on the surface at 10 K”, Workshop for Interstellar Matter 2008 , Hokkaido Univ., Sep.4-6, ﾎﾟｽﾀｰ (2008)
• N. Watanabe, O. Mouri, A. Nagaoka, T. Chigai, A. Kouchi, V. Pirronello, “Laboratory simulation of competition between hydrogenation and photolysis in the chemical evolution of H ₂O-CO ice mixtures”, Workshop for Interstellar Matter 2008 , Hokkaido Univ., Sep.4-6, ﾎﾟｽﾀｰ (2008)
• N. Watanabe, H. Hidaka, A. Nagaoka, A. Kouchi, “Catalytic effect of amorphous solid water on surface reactions of hydrogen atoms at very low temperatures”, Workshop for Interstellar Matter 2008 , Hokkaido Univ., Sep.4-6, ﾎﾟｽﾀｰ (2008)
• H. Hidaka, M. Watanabe, A. Kouchi, N. Watanabe, “H-D substitution reactions of formaldehyde on icy grain surfaces at low temperatures”, Workshop for Interstellar Matter 2008 , Hokkaido Univ., Sep.4-6, ﾎﾟｽﾀｰ (2008)
• H. Hidaka, N. Miyauchi, A. Kouchi, N. Watanabe, “Structural effects of icy grain surfaces in CO hydrogenation at a low temperature”, Workshop for Interstellar Matter 2008 , Hokkaido Univ., Sep.4-6, ﾎﾟｽﾀｰ (2008)
• Y. Oba, N. Miyauchi, T. Chigai, H. Hidaka, N. Watanabe, and A. Kouchi, “Effective formation of H₂O by the H-addition to solid O₂ on amorphous D₂O ice”, Workshop for Interstellar Matter 2008. Institute of Low Temperature Science , Hokkaido University, Hokkaido, Japan, Sep. 4-6, ﾎﾟｽﾀｰ (2008)
• A. Kouchi, N. Miyauchi, H. Hidaka, T. Chigai, A. Nagaoka and N. Watanabe, “H₂O ice formation from the reaction of cold H atoms solid O₂ at 10K”, Solar System Ices , Oxnard, CA USA, 5/5-8, ﾎﾟｽﾀｰ (2008)
• 宮内直弥，大場康弘，千貝健，日高宏, 渡部直樹，香内晃, ｢低温アモルファス氷上表面原子反応による水分子生成機構｣, 原子衝突研究協会第33回研究会, 8/5-7(8/7), 北大, 口頭(2008)
• 日高宏，渡辺元浩，香内晃，渡部直樹, ｢低温固体表面におけるホルムアルデヒドのH-D交換反応｣, 第33回原子衝突研究会, 8/5-7(8/7), 北大, 口頭 (2008)
• 宮内直弥，日高宏 ，千貝健，渡部直樹，香内晃, ｢星間塵氷マントル生成：水素原子-酸素分子表面反応｣, JPGU Meeting 2008 , 幕張メッセ国際会議場, 5/25-30, 口頭（2008)
• H. Hidaka, N. Miyauchi, A. Kouchi, N. Watanabe, “The effects of ice morphology in hydrogenation of CO at low temperature ice surface”, The Molecular Univers: an International Meeting on Physics and Chemistry of the Intersteller Medium , Arcachon, France, May 5-8, ﾎﾟｽﾀｰ (2008)
• 宮内直弥，日高宏，長岡明宏，渡部直樹, ｢低温酸素固体表面への水素原子付加反応｣, 日本物理学会 第63回年次大会, 3/22-26, 近畿大学, 口頭 (2008)
• 日高宏，宮内直弥，香内晃，渡部直樹, ｢低温氷表面での水素原子付加反応‐アモルファスと結晶による違い‐｣, 日本物理学会第63回年次大会, 3/22-26, 近畿大学, 口頭 (2008)

上記以前の一般講演

 

外部資金採択

 

その他