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YASUHIRO OBA
YASUHIRO OBA
Institute of Low Temperature Science, Hokkaido University
Geverifieerd e-mailadres voor lowtem.hokudai.ac.jp
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Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu
H Naraoka, Y Takano, JP Dworkin, Y Oba, K Hamase, A Furusho, ...
Science 379 (6634), eabn9033, 2023
1552023
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
The Astrophysical Journal 701 (1), 464, 2009
1542009
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
The Astrophysical Journal 749 (1), 67, 2012
1262012
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
The Astrophysical Journal Letters 712 (2), L174, 2010
1262010
Identifying the wide diversity of extraterrestrial purine and pyrimidine nucleobases in carbonaceous meteorites
Y Oba, Y Takano, Y Furukawa, T Koga, DP Glavin, JP Dworkin, ...
Nature communications 13 (1), 2008, 2022
1232022
Nucleobase synthesis in interstellar ices
Y Oba, Y Takano, H Naraoka, N Watanabe, A Kouchi
Nature communications 10 (1), 4413, 2019
1092019
An infrared measurement of chemical desorption from interstellar ice analogues
Y Oba, T Tomaru, T Lamberts, A Kouchi, N Watanabe
Nature Astronomy 2 (3), 228-232, 2018
922018
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
The Astrophysical Journal 722 (2), 1598, 2010
642010
Uracil in the carbonaceous asteroid (162173) Ryugu
Y Oba, T Koga, Y Takano, NO Ogawa, N Ohkouchi, K Sasaki, H Sato, ...
Nature Communications 14 (1), 1292, 2023
572023
Diel behavior of stable isotopes of dissolved oxygen and dissolved inorganic carbon in rivers over a range of trophic conditions, and in a mesocosm experiment
SR Parker, CH Gammons, SR Poulson, MD DeGrandpre, CL Weyer, ...
Chemical Geology 269 (1-2), 22-32, 2010
562010
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, V Pirronello
Physical Chemistry Chemical Physics 13 (35), 15792-15797, 2011
542011
Elemental and isotope behavior of macromolecular organic matter from CM chondrites during hydrous pyrolysis
Y Oba, H Naraoka
Meteoritics & Planetary Science 44 (7), 943-953, 2009
482009
Extraterrestrial hexamethylenetetramine in meteorites—a precursor of prebiotic chemistry in the inner solar system
Y Oba, Y Takano, H Naraoka, Y Furukawa, DP Glavin, JP Dworkin, ...
Nature communications 11 (1), 6243, 2020
442020
FAUST I. The hot corino at the heart of the prototypical Class I protostar L1551 IRS5
E Bianchi, CJ Chandler, C Ceccarelli, C Codella, N Sakai, ...
Monthly Notices of the Royal Astronomical Society: Letters 498 (1), L87-L92, 2020
402020
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, ...
Science advances 3 (9), eaao2538, 2017
392017
Reaction kinetics and isotope effect of water formation by the surface reaction of solid H 2 O 2 with H atoms at low temperatures
Y Oba, K Osaka, N Watanabe, T Chigai, A Kouchi
Faraday Discussions 168 (1), 185-204, 2014
392014
Carbon isotopic composition of acetic acid generated by hydrous pyrolysis of macromolecular organic matter from the Murchison meteorite
Y Oba, H Naraoka
Meteoritics & Planetary Science 41 (8), 1175-1181, 2006
382006
Transmission electron microscopy study of the morphology of ices composed of H2O, CO2, and CO on refractory grains
A Kouchi, M Tsuge, T Hama, Y Oba, S Okuzumi, S Sirono, M Momose, ...
The Astrophysical Journal 918 (2), 45, 2021
372021
FAUST. II. Discovery of a Secondary Outflow in IRAS 15398− 3359: Variability in Outflow Direction during the Earliest Stage of Star Formation?
Y Okoda, Y Oya, L Francis, D Johnstone, S Inutsuka, C Ceccarelli, ...
The Astrophysical Journal 910 (1), 11, 2021
362021
Deuterium Fractionation during Amino Acid Formation by Photolysis of Interstellar Ice Analogs Containing Deuterated Methanol
Y Oba, Y Takano, N Watanabe, A Kouchi
The Astrophysical Journal 827 (1), L18, 2016
362016
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Artikelen 1–20