J-GLOBAL         Last updated: Nov 28, 2018 at 16:58
Hokkaido University
Institute of Low Temperature Science, Frontier Ice and Snow Science Section
Job title

Research Areas



Graduate School, Division of Natural Science, Tokyo Metropolitan University
Faculty of Science and Engineering, Nihon University

Published Papers

Y. Kimura, M. Tsuge, V. Pirronello, A. Kouchi, N. Watanabe
858(L23) 5pp   May 2018   [Refereed]
T. Hama , A. Kouchi, and N. Watanabe
Astrophys. J. Lett.   857(L13) 6pp   Apr 2018   [Refereed]
Y. Oba, T. Tomaru, T. Lamberts, A. Kouchi, N. Watanabe
Nature Astronomy   2(5) 228-232   Feb 2018   [Refereed]
Y. Oba, Y. Takano, H. Naraoka, A. Kouchi, N. Watanabe
The Astrophysical Journal   849(122) 9pp   Nov 2017   [Refereed]
S. Tachibana, A. Kouchi, T. Hama, Y. Oba, L. Piani, I. Sugawara, Y. Endo, H. Hidaka, Y. Kimura, K. Murata, H. Yurimoto, and N. Watanabe
Science Advances   3(9) eaao2538   Sep 2017   [Refereed]
T. Hama, S. Ishizuka, T. Yamazaki, Y. Kimura, A. Kouchi, N.Watanabe, T. Sugimoto, V. Pirronello
Phys. Chem. Chem. Phys.   2017(19) 17677-17684   Jun 2017   [Refereed]
R. Escribano, E. Artacho, A. Kouchi, T. Hama, Y. Kimura, H. Hidaka, and N Watanabe
Physical Chemistry Chemical Physics   19 7280-7287   Feb 2017   [Refereed]
   2017   [Refereed]
64 282-283   Dec 2016   [Refereed]
Shinnosuke Ishizuka, Yuki Kimura, Tomoya Yamazaki,Tetsuya Hama, Naoki Watanabe, Akira Kouchi
28(23) 8732-8741   Nov 2016   [Refereed]
A. Kouchi, T. Hama, Y. Kimura, H. Hidaka, R. Escribano, N. Watanabe
658 287-292   Aug 2016   [Refereed]
Oba Y., Takano Y., Watanabe N., and Kouchi A.
Astrophysical Journal Letters   8271(1) L18 (7pp)   Jul 2016   [Refereed]
Oba Y., Osaka K., Chigai T., Kouchi A., and Watanabe N.
Monthly Notices of Royal Astronomical Society   462(1) 689-695   Jul 2016   [Refereed]
Hirkazu Ueta, Naoki Watanabe, Tetsuya Hama, and Akira Kouchi
116 253201(5pp)   Jun 2016   [Refereed]
Y. Nakai, H.Hidaka, N. Watanabe, T.M.Kojima
J. Chem. Phys.   144 224306(11pp)   Jun 2016   [Refereed]
T. Hama, A. Kouchi, N. Watanabe
Science   351(6268) 65-67   Jan 2016   [Refereed]
Hydrogenation /and Deuteration of C2H2 and C2H4 on Cold Grains: Clue to the Formation Mechanism of C2H6 with Astronomical Interest
H. Kobayashi, H. Hidaka, T. Lamberts, T. Hama, H. Kawakita, J. Kästner, and N. Watanabe
The Astrophysical Journal   in press    2016   [Refereed]
K.Kuwahata, T.Hama, A.Kouchi, N.Watanabe
Physical Review Letters   115 133201   Sep 2015   [Refereed]
Y. Oba, N. Watanabe, Y. Osamura, A.Kouchi
Chemical Physics Letters   634 53-59   Jun 2015   [Refereed]
T. Hama, H. Ueta, A. Kouchi, N. Watanabe, and H. Tachikawa
The Journal of Physical Chemistry Letters   5(21) 3843-3848   Oct 2014   [Refereed]
Y. Oba, K. Osaka, N. Watanabe, T. Chigai, A. Kouchi
Faraday Discussion 168   185-204   May 2014   [Refereed]
Y.Oba, T. Chigai, Y. Osamura, N. Watanabe, A. Kouchi
Meteoritics & Planetary Science   1 16pp   2013   [Refereed]
N. Watanabe, T. Hama, A. Kouchi
AIP Conference Proceedings   1543 308-316   2013   [Refereed][Invited]
Relative Reaction Rates of hydrogenation and deuteration of solid CO at very low temperatures
N. Watanabe, H. Hidaka, A. Kouchi
Eds. R. I. Kaiser, P. Bernath, Y. Osamura, S. Petrie, & A. M. Mebel, Astrochemistry from laboratory Studies to Astronomical Observations, AIP, New York   122-127   2006   [Refereed]
Efficient formation of deuterated methanol by H-D substitution on interstellar grain surfaces
A. Nagaoka, N. Watanabe, A.Kouchi
Eds. R. I. Kaiser, P. Bernath, Y. Osamura, S. Petrie, & A. M. Mebel, Astrochemistry from laboratory Studies to Astronomical Observations, AIP   69-75   2006   [Refereed]
Deuterium fractionationin the reactions of D + H2CO and H + D2CO at 15 K
H. Hidaka, N. Watanabe, & A. Kouchi
Eds. R. I. Kaiser, P. Bernath, Y. Osamura, S. Petrie, & A. M. Mebel, Astrochemistry from laboratory Studies to Astronomical Observations, AIP   107-112   2006   [Refereed]
Formation and Deuterium Fractionation of Organic Molecules on Grain Surfaces
Astrochemistry: Recent Successes and Current Challenges, Cambridge University Press   415-426   2006   [Refereed]
Influence of ice composition on the formation on interstellar formaldehyde and methanol on dust grains
A. Nagaoka, N. Watanabe, T. Shiraki, H. Hidaka, A. Kouchi
Proceedings of the 37th isas luna and planetary symposium   4 91-94   2004   [Refereed]
Molecular ion mobility in helium gas at very low temperature
H. Hidaka, S. Matoba, S. Jinno, H. Tanuma, N. Kobayashi
28 18-19   2002   [Refereed]
Formation of CO2 molecules from CO doped D2O amorphous ice by uv irradiation at 12K
Naoki Watanabe and Akira Kouchi
Prog. Rep. Atom. Coll. Res. Jpn.   27 62-63   2001   [Refereed]
47-50   1997   [Refereed]
Molecular shape resonances studied by Angle-resolved PEPICO
E. Shigemasa, J. Adachi, N. Watanabe, K. Soejima and A. Yagishita
Eds. A. Yagishita and T. Sasaki: Atomic and Molecular Photoionization, Universal Academy Press, INC.   69-78   1996   [Refereed]


T. Hama, K. Kuwahata, N. Watanabe, A. Kouchi, Y. Kimura. T. Chigai, V. Pirronello
Astrophys. J.   757(2) 185-(12pp)   2012   [Refereed]
Y. Oba, N. Watanabe, T. Hama, K. Kuwahata, H. Hidaka, A. Kouchi
Astrophys. J.   749(1) 67-(12pp)   2012   [Refereed]
T. Hama, N. Watanabe, A. Kouchi, M. Yokoyama
Astrophys. J. Lett.   738(1) L15-(5pp)   2011   [Refereed]
H. Hidaka, M. Watanabe, A. Kouchi, N. Watanabe
Phys. Chem. Chem. Phys.   13(35) 15798-15802   2011   [Refereed]
Y. Oba, N. Watanabe, A. Kouchi, T. Hama, V. Pirronello
Phys. Chem. Chem. Phys.   13(35) 15792-15797   2011   [Refereed]
T. Kinugawa, A. Yabushita, M. Kawasaki, T. Hama, N. Watanabe
Phys. Chem. Chem. Phys.   13(35) 15785-15791   2011   [Refereed]
T. Hama, M. Yokoyama, A. Yabushita, M. Kawasaki, N. Watanabe
Nucl. Instr. Methods B   269(9) 1011-1015   2011   [Refereed]
Y.Oba, N.Watanabe, A.Kouchi, T.Hama, V.Pirronello
Astrophys. J.   722(2,Pt.1) 1598-1606   2010   [Refereed]
N. Watanabe, Y. Kimura, A. Kouchi, T. Chigai, T. Hama, V. Pirronello
Astrophys. J. Lett.   714(2,Pt.2) L233-L237   2010   [Refereed]
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(16) 164508   2010   [Refereed]
E-S. Moon, H. Kang, Y. Oba, N. Watanabe, A. Kouchi
Astrophys. J.   713(2,Pt.1) 906-911   2010   [Refereed]
Y. Oba, N. Watanabe, A. Kouchi, T. Hama, V. Pirronello
Astrophys. J. Lett.   712(2,Pt.2) L174-L178   2010   [Refereed]
N. Watanabe, A. Kouchi. H. Hidaka, Y. Oba, N. Miyauchi
J. Phys. Conf. Ser.   194(1) 012044-(5pages)   2009   [Refereed]
H. Hidaka, M. Watanabe, A. Kouchi, & N. Watanabe
J. Phys. Conf. Ser.   194 132024   2009   [Refereed]
T. Hama, A. Yabushita, M. Yokoyama, M. Kawasaki, N. Watanabe
J. Chem. Phys.   131(11) 114511   2009   [Refereed]
T. Hama, A. Yabushita, M. Yokoyama, M. Kawasaki, N. Watanabe
J. Chem. Phys.   131(11) 114510   2009   [Refereed]
H. Hidaka, M. Watanabe, A. Kouchi, N. Watanabe
Astrophys. J.   702(1) 291-300   2009   [Refereed]
Y. Oba, N. Miyauchi, H. Hidaka, T. Chigai, N. Watanabe, A. Kouchi,
Astrophys. J.   701(1) 464-470   2009   [Refereed]
A. Yabushita, T. Hama, M. Yokoyama, M. Kawasaki, S. Andersson, R. N. Dixon, M. N. R. Ashfold, N. Watanabe
Astrophys. J. Lett.   699(2) L80-L83   2009   [Refereed]
T. Koizumi, T. M. Kojima, M. Sano, N. Watanabe
J. Phys. Conf. Ser.   163(1) 012099   2009   [Refereed]
N. Watanabe, A. Kouchi
Progress in Surface Science   83(10-12) 439-489   2008   [Refereed]
A. Yabushita, T. Hama, D. Iida, N. Kawanaka, M. Kawasaki, N. Watanabe, M. N. R. Ashfold, H-P. Loock
J. Chem. Phys.   129(4) 044501   2008   [Refereed]
A. Yabushita, T. Hama, D. Iida, N. Kawanaka, M. Kawasaki, N. Watanabe, M. N. R. Ashfold, H-P. Loock
Astrophys. J. Lett.   682(1) L69-L72   2008   [Refereed]
N. Miyauchi, H. Hidaka, T. Chigai, A. Nagaoka, N. Watanabe, A. Kouchi
Chem. Phys. Lett.   456(1-3) 27-30   2008   [Refereed]
H. Hidaka, N. Miyauchi, A. Kouchi, N. Watanabe
Chem. Phys. Lett.   456(1-3) 36-40   2008   [Refereed]
N. Watanabe, O. Mouri, A. Nagaoka, T. Chigai, A. Kouchi, V. Pirronello
Astrophys. J.   668(2) 1001-1011   2007   [Refereed]
H. Hidaka, A. Kouchi, N. Watanabe
J. Chem. Phys.   126(20) 204707   2007   [Refereed]
A. Nagaoka, N. Watanabe, Akira Kouchi
J. Phys. Chem. A   111(16) 3016-3028   2007   [Refereed]
N. Watanabe, A. Nagaoka, H. Hidaka, T. Shiraki, T. Chigai, A. Kouchi
Planet. Space Sci.   54(11) 1107-1114   2006   [Refereed]
A. Nagaoka, N. Watanabe, A. Kouchi
Astrophys. J. Lett.   624(1) L29-L32   2005   [Refereed]
T. M. Kojima, F. Chen, M. Kitajima, T. Koizumi, Y. Nakai, H. Yamaoka, N. Watanabe
J. Electron Spectrosc. Relat. Phenom.   144-147 71-74   2005   [Refereed]
N. Watanabe, A. Nagaoka, T. Shiraki, A. Kouchi
Astrophys. J.   616(1) 638-643   2004   [Refereed]
H. Hidaka, N. Watanabe, T. Shiraki, A. Nagaoka, A. Kouchi
Astrophys. J.   614(2) 1124-1131   2004   [Refereed]
N. Watanabe, T. Shiraki, A. Kouchi
Astrophysical Journal Letters   588(2) L121-L124   2003   [Refereed]
J.S.A. Perry, J.M. Gingell, K.A. Newson, J. To, N. Watanabe, S.D. Price
Measurment Science and Technology   13(9) 1414-1424   2002   [Refereed]
N.Watanabe, A. Kouchi
Astrophys. J. Lett.   571(2) L173-L177   2002   [Refereed]
A. Kouchi, T. Kudo, H. Nakano, M. Arakawa, N. Watanabe, S. Sirono, M. Higa, N. Maeno
Astrophys. J. Lett.   566(2) L121-L124   2002   [Refereed]
Naoki Watanabe and Akira Kouchi
Astrophys. J.   567(1) 651-655   2002   [Refereed]
Y. Itoh, A. Ito, M. Kitajima, T. Koizumi, T. M. Kojima, H. Sakai, M. Sano, N. Watanabe
Jounal of Physics B: Atomic, Molecluar and Optical Physics   34(17) 3493-3499   2001   [Refereed]
N. Watanabe, T. Horii, and A. Kouchi
Astrophys. J.   541 772-779   2000   [Refereed]
N. Watanabe, Y. Awaya, A. Fujino, Y. Itoh, M. Kitajima, T. M. Kojima, M. Oura, R. Okuma, M. Sano, T. Sekioka and T. Koizumi
Journal of PhysicsB : Atomic, Molecular, Optical, Physics   31(18) 4137-4141   1998   [Refereed]
A.A.Pavlychev, N.G. Forminykh, N. Watanabe, K. Soejima, E. Shigemasa,and A. Yagishita
Physical Review Letters   81(17) 3623-3626   1998   [Refereed]
T.M. Kojima, M. Oura, Y. Itoh, T. Koizumi, M. Sano, T. Sekioka, N. Watanabe, H. Yamaoka, and Y. Awaya
Journal of Physics B : Atomic, Molecular, Optical, Physics   31(7) 1463-1468   1998   [Refereed]
E. Shigemasa, J. Adachi, K. Soejima, N. Watanabe, A. Yagishita, and N.A. Cherepkov
Physical Review Letters   80(8) 1622-1625   1998   [Refereed]
T. Koizumi, Y. Awaya, A. Fujino, T. Itoh, M. Kitajima, T.M. Kojima, M. Oura M. Sano, T. Sekioka, N. Watanabe, and F. Koike
Physica Scripta   T73(T73) 131-132   1997   [Refereed]
N. Watanabe, J. Adachi, K. Soejima, E. Shigemasa, A. Yagishita, N. G. Fominykh, A. A.Pavlychev
Physical Review Letters   78 4910   1997   [Refereed]
T. Kambara, A. Igarashi, N. Watanabe, Y. Nakai, T.M. Kojima, Y. Awaya
J.Phys.B: At. Mol. Opt. Phys.   30(5) 1251-1260   Mar 1997   [Refereed]
S.D. Kravis, N. Watanabe, Y. Awaya, M. Kimura, T. Kojima, K. Okuno, M. Oura
Physica Scripta   T71 121-126   1997   [Refereed]
M. Sano, Y. Itoh, T. Koizumi, T.M. Kojima, S.D. Kravis, M. Oura, T.S ekioka, N. Watanabe, Y.Awaya, and F.Koike
Journal of Physics B:Molecular and Optical Physics   29(22) 5305-5313   1997   [Refereed]
T. Koizumi, Y. Awaya, M.Gonno, Y. Itoh, M. Kiura, T.M. Kojima, S. Kravis, M. Oura, M. Sano, N. Watanabe, H.Yamaoka, F.Koike
Journal of Electron Spectroscopy and Related Phenomena   79 289-292   May 1996   [Refereed]
S.D.Kravis, M.Abdallah, C.L.Cocke, C.D.Lin, M. Stockli, B.Walch, Y.D.Wang, R.E.Olson, V.D.Rodriguez, W.Wu, M.Pieksma, N.Watanabe
Physical Review A   54(2) 1394-1403   Aug 1996   [Refereed]
Y. Negishi, N. Watanabe, H. Shiromaru, Y. Achiba, N. Kobayashi
Surface Review and Letters   3(1) 661-665   Feb 1996   [Refereed]
Y. Negishi, A. Kimura, N. Kobayashi, H. Shiromaru, Y. Achiba, N. Watanabe
J. Chem. Phys.   103(23) 9963-9967   1995   [Refereed]
N. Watanabe, H. Shiromaru, Y. Negishi, Y. Achiba, N. Kobayashi, Y. Kaneko
Chem. Phys. Lett.   207(4/6) 493-497   May 1993   [Refereed]
N. Watanabe, H. Shiromaru, Y. Negishi, Y.Achiba, N. Kobayashi, Y. Kaneko
Z. Phys. D   26(1) 252-254   1993   [Refereed]
N. Watanabe, H. Shiromaru, N. Kurihara, Y. Achiba, N. Kobayashi, Y. Kaneko, J. Yoda
Nuclear Instruments and Method in Physics Research Section B:Beam Interactions with Materials and Atoms   69(2-3) 385-388   1992   [Refereed]

Conference Activities & Talks

Measurements of activation energies for diffusion of hydrogen atom on pure CO solid [Invited]
N. Watanabe
European Conference On Surface Science (ECOSS34)   26 Aug 2018   
Infrared Measurements of Efficient Chemical Desorption of Hydrogen Sulfide from Amorphous Solid Water [Invited]
N. Watanabe
COSPAR 2018, The Evolving Chemical Universe: from proto-stars to the Origin of Life   26 Jul 2018   
Surface Chemistry of the ISM: Experimental Approach to grain surface processes [Invited]
N. Watanabe
The Olympian Symposium 2018 Gas and stars from milli- to mega- parsecs   1 May 2018   
H 2ortho-para conversion on amorphous solid water [Invited]
N. Watanabe
International Conference on Photonic Electronic and Atomic Collisions(ICPEAC2017)   26 Jul 2017   
Ortho-to-para nuclear spin conversion of H2 on ice: a key to chemical evolution in space
Naoki Watanabe
Physicochemical processes on Ice Dust towards Deuterium Enrichment
N. Watanabe
International Symposium on Molecular Spectroscopy   19 Jun 2017   
Physicohemical Processes on ice dust towards deuterium enrichment
International Symposium on Molecular Spectroscopy 72ND MEETING   19 Jun 2017   
Ortho-to-para ratios of hydrogen molecules desorbed from ice at around 10 K: What happens on cosmic ice dust? [Invited]
N. Watanabe,H. Ueta, T. Hama, A. Kouchi
The 253thAmerican Chemical Society National Meeting   2 Apr 2017   
Strong temperature dependence of ortho-to-para conversion of H2 on amorphous solid water at around 10 K
N. Watanabe
Experimental approach to hydrogen chemistry on grain surfaces: molecular formation [Invited]
N. Watanabe
Center for Astrochemical Studies Seminar   12 Oct 2016   
Experimental approach to ortho-to-para ratio of hydrogen and water molecules desorbed from ice at around 10 K [Invited]
Naoki Watanabe
Workshop on Astrochemistry in Star and Planet Formation   16 Feb 2016   
Deuterium chemistry and nuclear spin conversion on grain surfaces: implication to deuterium enrichment [Invited]
N. Watanabe
From clouds to protoplanetary disk: the astrochemical link   5 Oct 2015   
Grain Surface Chemistry: What Happens Without Photons and Ions [Invited]
N. Watanabe
A symposium to honor Lou Allamandola’s Contributions to the Molecular Universe   13 Sep 2015   
Experimental Approach to Chemistry of Cosmic Dust [Invited]
N. Watanabe
COST Action Our Astrochemical History CM1401   25 May 2015   
Experimental approach to nonenergetic physicochemical processes on icy grains [Invited]
Naoki Watanabe
Icy Grain Chemistry for Formation of Complex Organic Molecules: From Molecular Clouds to Protoplanetary Disks, Comets and Meteorites   5 Mar 2015   
Diffusion of hydrogen atom on amorphous solid water: Thermal or tunneling? 
N. Watanabe
247th ACS Chemistry & Materials for Energy   16 Mar 2014   
Physics and chemistry of hydrogen on cosmic dust: diffusion, spin temperatures, and water formation [Invited]
N. Watanabe, T. Hama, H. Hidaka, Y. Kimura, A. Kouchi, Y. Oba, V. Pirronello
First Workshop on Experimental Laboratory Astrophysics   Feb 2013   
Physicochemical Processes of Hydrogen on Ice: A Key for Chemical Evolution in Space [Invited]
N. Watanabe
2nd International Symposium on Hierarchy and Holism   Feb 2013   
Surface diffusion mechanism of atomic hydrogen and the ortho/para ratio of nascent H2 molecule on amorphous solid water at around 10 K [Invited]
N. Watanabe
International Lorentz Center Workshop: Dynamical Phenomena at Surfaces: The Role of Complexity   Nov 2012   
Hydrogen processes on dust grains: H atom diffusion and water formation [Invited]
30th COSPAR Scientific Assembly   Jul 2012   
Spin temperatures of hydrogen and water molecules on amorphous solid water [Invited]
ASTROCHEM 2012   Jul 2012   
Grain surface processes at very low temperatures: hydrogen diffusion and tunneling reactions [Invited]
N. Watanabe
Gordon Research Conference, Radiation Driven Processes in Physics, Chemistry, Biology, and Industry   Jul 2012   
Hydrogen chemistry on cold grain surfaces [Invited]
XVIIIth Symposium on Atomic, Cluster, and Surface Physics   Jan 2012   
Hydrogen tunneling reaction and its isotope effect at a low temperature ice surface: Origin of deuterium enrichments in interstellar formaldehyde and methanol [Invited]
N. Watanabe, H. Hidaka, A. Kouchi 9. N. Watanabe, H. Hidaka, A. Kouchi
International Conference on the Research of Chemistry and Physics of Matrix Isolated Species(MATRIX2011)   Jul 2011   
Ice surface chemistry of hydrogen atom in space [Invited]
N. Watanabe, H. Hidaka, T. Hama, A. Kouchi, T. Chigai, Y. Kimura
27th European Conference on Surface Science, ECOSS 27   Aug 2010   
Surface processes of atomic hydrogen at very low temperatures relevant to astrochemistry [Invited]
N. Watanabe
24th International Conference on Atomic Collisions in Solids ICACS- 24   Jul 2010   
Chemistry of atomic hydrogen on interstellar ice grains at very low temperatures [Invited]
N. Watanabe, H. Hidaka, A. Kouchi, T. Hama, Y. Kimura
Western Pacific Geophysics Meeting   Jun 2010   
Physicochemical processes of atomic hydrogen on amorphous solid water at very low temperatures [Invited]
N. Watanabe, A. Kouchi, H. Hidaka, Y. Kimura, T. Hama
239th American Chemical Society National Meeting & Exposition   Mar 2010   
Ice surface reactions: its role in chemical evolution in space [Invited]
ILTS International Symposium "Frontier of Low Temperature Science", Sapporo   Nov 2009   
Tunneling reactions of atomic hydrogen and molecules on amorphous solid water at very low temperatures [Invited]
N. Watanabe
Horiba-ISSP International Symposium on “Hydrogen and water in condensed matter physics”   Oct 2009   
Reactions of hydrogen atoms and molecules on amorphous solid water at very low temperatures [Invited]
N. Watanabe
Gordon Research Conferences, Physics & Chemistry of Matrix-Isolated Species   Jul 2009   
Nonenergetic reactions between hydrogen and molecules On Interstellar Grain Surfaces [Invited]
N. Watanabe
XXVI International Conference on Photonic, Electronic, and Atomic Collisions   Jul 2009   
Experimental approach to grain surface reactions of hydrogen and deuterium atoms [Invited]
International Lorentz Center Workshop: Interstellar Surfaces: From Laboratory to Models   Oct 2008   
Grain surface chemistry: fractionation routes [Invited]
N. Watanabe
The Molecular Univers: an International Meeting on Physics and Chemistry of the Intersteller Medium   May 2008   
Simultaneous irradiation experiments of H2O-CO binary ice with UV photons and cold H atoms [Invited]
N. Watanabe, A. Nagaoka, O. MouriI, A. Kouchi and V. Pirronello
Asia-Oceania Geosciences Society Annual Meeting   Aug 2007   
Laboratory study of chemical processes on interstellar ice grains [Invited]
N. Watanabe, A. Nagaoka, H. Hidaka, A. Kouchi
XXIV International Union of Feodesy and Geophysics (IUGG) General Assembly   Jul 2007   
Reactions of hydrogen and deuterium atoms with CO, formaldehyde, and methanol on ice grains [Invited]
International Astrophysics and Astrochemistry Meeting: Molecules in Space & Laboratory   May 2007   
Formation of simple organic molecules by Hydrogenation on grain surfaces [Invited]
N. Watanabe
International Astronomical Union Symposium: Astrochemistry,   Aug 2005   
Formation of deuterated methanol by surface reactions at 10 K [Invited]
N. Watanabe, A. Nagaoka, A. Kouchi
Asia-Oceania Geosciences Society Annual Meeting   Jun 2005   
Evolution of CO molecule on dusts in dense core: formation of H2CO and CH3OH [Invited]
N. Watanabe
The 4th International Symposium on New Trends of Physics, Recent Advances in Astrophysics and Planetary Science -from the early universe to the Solar system-   Mar 2005   

Research Grants & Projects

Atomic and Molecular Processes on Amorphous ice surface
Study on Atomic,ionic,and Molecular Photoionization processes