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Yasuhiro Oba

hokkaido university

28H-index
128Paper Count
3.0KCitation Count
Published Papers 56
Publication Date
Distribution of purine and pyrimidine bases in Antarctic carbonaceous meteorites
err2026-07-06
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errYasuhiro Oba; Takuto Tomaru; Toshiki Koga; Yoshihiro Furukawa; Sako Sunami; Toshihiro Yoshimura; Yuta Hirakawa; Nanako O. Ogawa; Naohiko Ohkouchi; Keiko Kuwamoto; Yoshinori Takano; Hiroshi Naraoka
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Direct observation of organic molecules in asteroid ryugu revealed by high-resolution atomic force microscope
err2026-04-14
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errKota Iwata; Yasuhiro Oba; Hiroshi Naraoka; Hikaru Yabuta; Shogo Tachibana; Yoshiaki Sugimoto
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Distribution of extraterrestrial nucleobases, other N-heterocycles, and their precursors in a sample from asteroid Bennu
err2026-04-02
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errYasuhiro Oba; Toshiki Koga; Yoshinori Takano; Hiroshi Naraoka; Yuta Hirakawa; Sako Sunami; Yoshihiro Furukawa; Tomoya Yamazaki; Takuto Tomaru; Jason P. Dworkin; Daniel P. Glavin; Harold C. Connolly; Dante S. Lauretta
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A complete set of canonical nucleobases in the carbonaceous asteroid (162173) Ryugu
err2026-03-16
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errToshiki Koga; Yasuhiro Oba; Yoshinori Takano; Hiroshi Naraoka; Nanako O. Ogawa; Kazunori Sasaki; Hajime Sato; Toshihiro Yoshimura; Naohiko Ohkouchi
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Experimental and computational studies of the hydrogenation of carbon disulfide (CS2) on ice analogues
err2026-03-10
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errThanh Nguyen; Germán Molpeceres; Yasuhiro Oba; Marcelino Agúndez; Gisela Esplugues; José Cernicharo; Naoki Watanabe
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Methanol Formation via the Radical–Radical Reaction of OH and CH3 Radicals Undergoing Transient Diffusion on Ice at 10 to 60 K
err2026-02-13
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errArisa Iguchi; Hiroshi Hidaka; Atsuki Ishibashi; Masashi Tsuge; Yasuhiro Oba; Naoki Watanabe
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Bio-essential sugars in samples from asteroid Bennu
err2025-12-02
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errYoshihiro Furukawa; Sako Sunami; Yoshinori Takano; Toshiki Koga; Yuta Hirakawa; Yasuhiro Oba; Hiroshi Naraoka; Daisuke Saigusa; Takaaki Yoshikawa; Satoru Tanaka; Daniel P. Glavin; Jason P. Dworkin; Harold C. Connolly; Dante S. Lauretta
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FAUST XXIII. SiO outflow in the protobinary system L483
err2025-03-27
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errHirota, T.; Lefloch, B.; Oya, Y.; Bouvier, M.; Charnley, S.; Jimenez-Serra, I.; Lopez-Sepulcre, A.; Miotello, A.; Ospina-Zamudio, J.; Vastel, C.; Viti, S.; Chandler, C. J.; Svoboda, B.; Ceccarelli, C.; Codella, C.; Sakai, N.; Aikawa, Y.; Balucani, N.; Bianchi, E.; Caselli, P.; Caux, E.; Cuello, N.; De Simone, M.; Dulieu, F.; Evans, L.; Fedele, D.; Feng, S.; Fontani, F.; Hama, T.; Hanawa, T.; Herbst, E.; Isella, A.; Johnstone, D.; Liu, H. B.; Loinard, L.; Maud, L. T.; Maureira, M. J.; Menard, F.; Moellenbrock, G.; Nomura, H.; Oba, Y.; Ohashi, S.; Okoda, Y.; Pineda, J.; Podio, L.; Rimola, A.; Sabatini, G.; Sakai, T.; Segura-Cox, D.; Shirley, Y.; Testi, L.; Watanabe, N.; Watanabe, Y.; Zhang, Y.; Yamamoto, S.
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Hydrogenation of HOCO and formation of interstellar CO2: a not so straightforward relation
err2025-03-18
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errMolpeceres, German; Enrique-Romero, Joan; Ishibashi, Atsuki; Oba, Yasuhiro; Hidaka, Hiroshi; Lamberts, Thanja; Aikawa, Yuri; Watanabe, Naoki
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Compound-Specific Carbon and Nitrogen Isotopic Analyses of Underivatized Pyrimidine and Purine Nucleobases
err2025-03-03
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PREAI
errKoga, T; Takano, Y; Ogawa, NO; Hollingsworth, EH; Oba, Y; Ohkouchi, N
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Chemical Pathways of SO2 with Hydrogen Atoms on Interstellar Ice Analogues
err2024-11-27
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errNguyen, Thanh; Oba, Yasuhiro; Sameera, W. M. C.; Furuya, Kenji; Watanabe, Naoki
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Proposed Importance of HOCO Chemistry: Inefficient Formation of CO2 from CO and OH Reactions on Ice Dust
err2024-11-20
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errIshibashi, Atsuki; Molpeceres, German; Hidaka, Hiroshi; Oba, Yasuhiro; Lamberts, Thanja; Watanabe, Naoki
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FAUST XVII. Super deuteration in the planet-forming system IRS 63 where the streamer strikes the disk
err2024-08-09
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errPodio, L.; Ceccarelli, C.; Codella, C.; Sabatini, G.; Segura-Cox, D.; Balucani, N.; Rimola, A.; Ugliengo, P.; Chandler, C. J.; Sakai, N.; Svoboda, B.; Pineda, J.; De Simone, M.; Bianchi, E.; Caselli, P.; Isella, A.; Aikawa, Y.; Bouvier, M.; Caux, E.; Chahine, L.; Charnley, S. B.; Cuello, N.; Dulieu, F.; Evans, L.; Fedele, D.; Feng, S.; Fontani, F.; Hama, T.; Hanawa, T.; Herbst, E.; Hirota, T.; Jimenez-Serra, I.; Johnstone, D.; Lefloch, B.; Le Gal, R.; Loinard, L.; Liu, H. Baobab; Lopez-Sepulcre, A.; Maud, L. T.; Maureira, M. J.; Menard, F.; Miotello, A.; Moellenbrock, G.; Nomura, H.; Oba, Y.; Ohashi, S.; Okoda, Y.; Oya, Y.; Sakai, T.; Shirley, Y.; Testi, L.; Vastel, C.; Viti, S.; Watanabe, N.; Watanabe, Y.; Zhang, Y.; Zhang, Z. E.; Yamamoto, S.
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Primordial aqueous alteration recorded in water-soluble organic molecules from the carbonaceous asteroid (162173) Ryugu
err2024-07-10
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errTakano, Yoshinori; Naraoka, Hiroshi; Dworkin, Jason P.; Koga, Toshiki; Sasaki, Kazunori; Sato, Hajime; Oba, Yasuhiro; Ogawa, Nanako O.; Yoshimura, Toshihiro; Hamase, Kenji; Ohkouchi, Naohiko; Parker, Eric T.; Aponte, Jose C.; Glavin, Daniel P.; Furukawa, Yoshihiro; Aoki, Junken; Kano, Kuniyuki; Nomura, Shin-ichiro M.; Orthous-Daunay, Francois-Regis; Schmitt-Kopplin, Philippe; Furusho, Aogu; Hashiguchi, Minako; Fukushima, Kazuhiko; Mclain, Hannah L.; Elsila, Jamie E.; Graham, Heather V.; Eiler, John M.; Hertkorn, Norbert; Ruf, Alexander; Wolters, Cedric; Isa, Junko; Vuitton, Veronique; Thissen, Roland; Sakai, Saburo; Sugahara, Haruna; Mita, Hajime; Chikaraishi, Yoshito; Yoshikawa, Takaaki; Tanaka, Satoru; Morita, Mayu; Onose, Morihiko; Araoka, Daisuke; Kabashima, Fumie; Fujishima, Kosuke; Yamazaki, Tomoya; Kimura, Yuki; Yurimoto, Hisayoshi; Nakamura, Tomoki; Noguchi, Takaaki; Okazaki, Ryuji; Yabuta, Hikaru; Sakamoto, Kanako; Yada, Toru; Nishimura, Masahiro; Nakato, Aiko; Miyazaki, Akiko; Yogata, Kasumi; Abe, Masanao; Okada, Tatsuaki; Usui, Tomohiro; Yoshikawa, Makoto; Saiki, Takanao; Tanaka, Satoshi; Terui, Fuyuto; Nakazawa, Satoru; Watanabe, Sei-ichiro; Tsuda, Yuichi; Tachibana, Shogo
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Multiple chemical tracers finally unveil the intricate NGC 1333 IRAS 4A outflow system. FAUST XVI
err2024-05-23
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errChahine, Layal; Ceccarelli, Cecilia; De Simone, Marta; Chandler, Claire J.; Codella, Claudio; Podio, Linda; Lopez-Sepulcre, Ana; Sakai, Nami; Loinard, Laurent; Bouvier, Mathilde; Caselli, Paola; Vastel, Charlotte; Bianchi, Eleonora; Cuello, Nicolas; Fontani, Francesco; Johnstone, Doug; Sabatini, Giovanni; Hanawa, Tomoyuki; Zhang, Ziwei E.; Aikawa, Yuri; Busquet, Gemma; Caux, Emmanuel; Duran, Aurore; Herbst, Eric; Menard, Francois; Segura-Cox, Dominique; Svoboda, Brian; Balucani, Nadia; Charnley, Steven; Dulieu, Francois; Evans, Lucy; Fedele, Davide; Feng, Siyi; Hama, Tetsuya; Hirota, Tomoya; Isella, Andrea; Jimenez-Serra, Izaskun; Lefloch, Bertrand; Maud, Luke T.; Maureira, Maria Jose; Miotello, Anna; Moellenbrock, George; Nomura, Hideko; Oba, Yasuhiro; Ohashi, Satoshi; Okoda, Yuki; Oya, Yoko; Pineda, Jaime; Rimola, Albert; Sakai, Takeshi; Shirley, Yancy; Testi, Leonardo; Viti, Serena; Watanabe, Naoki; Watanabe, Yoshimasa; Zhang, Yichen; Yamamoto, Satoshi
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FAUST XIII. Dusty cavity and molecular shock driven by IRS7B in the Corona Australis cluster
err2024-04-10
err3
PREAI
errSabatini, G.; Podio, L.; Codella, C.; Watanabe, Y.; De Simone, M.; Bianchi, E.; Ceccarelli, C.; Chandler, C. J.; Sakai, N.; Svoboda, B.; Testi, L.; Aikawa, Y.; Balucani, N.; Bouvier, M.; Caselli, P.; Caux, E.; Chahine, L.; Charnley, S.; Cuello, N.; Dulieu, F.; Evans, L.; Fedele, D.; Feng, S.; Fontani, F.; Hama, T.; Hanawa, T.; Herbst, E.; Hirota, T.; Isella, A.; Jimenez-Serra, I.; Johnstone, D.; Lefloch, B.; Le Gal, R.; Loinard, L.; Liu, H. B.; Lopez-Sepulcre, A.; Maud, L. T.; Maureira, M. J.; Menard, F.; Miotello, A.; Moellenbrock, G.; Nomura, H.; Oba, Y.; Ohashi, S.; Okoda, Y.; Oya, Y.; Pineda, J.; Rimola, A.; Sakai, T.; Segura-Cox, D.; Shirley, Y.; Vastel, C.; Viti, S.; Watanabe, N.; Zhang, Y.; Zhang, Z. E.; Yamamoto, S.
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Determination of the Branching Ratio of CH3OH + OH Reaction on Water Ice Surface at 10 K
err2023-12-29
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errIshibashi, Atsuki; Hidaka, Hiroshi; Sameera, W. M. C.; Oba, Yasuhiro; Watanabe, Naoki
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Chemical evolution of primordial salts and organic sulfur molecules in the asteroid 162173 Ryugu
err2023-09-18
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errYoshimura, Toshihiro; Takano, Yoshinori; Naraoka, Hiroshi; Koga, Toshiki; Araoka, Daisuke; Ogawa, Nanako O.; Schmitt-Kopplin, Philippe; Hertkorn, Norbert; Oba, Yasuhiro; Dworkin, Jason P.; Aponte, Jose C.; Yoshikawa, Takaaki; Tanaka, Satoru; Ohkouchi, Naohiko; Hashiguchi, Minako; Mclain, Hannah; Parker, Eric T.; Sakai, Saburo; Yamaguchi, Mihoko; Suzuki, Takahiro; Yokoyama, Tetsuya; Yurimoto, Hisayoshi; Nakamura, Tomoki; Noguchi, Takaaki; Okazaki, Ryuji; Yabuta, Hikaru; Sakamoto, Kanako; Yada, Toru; Nishimura, Masahiro; Nakato, Aiko; Miyazaki, Akiko; Yogata, Kasumi; Abe, Masanao; Okada, Tatsuaki; Usui, Tomohiro; Yoshikawa, Makoto; Saiki, Takanao; Tanaka, Satoshi; Terui, Fuyuto; Nakazawa, Satoru; Watanabe, Sei-ichiro; Tsuda, Yuichi; Tachibana, Shogo; Hamase, Kenji; Furusho, Aogu; Fukushima, Kazuhiko; Aoki, Dan; Glavin, Daniel P.; Mclain, Hannah L.; Elsila, Jamie E.; Graham, Heather V.; Eiler, John M.; Ruf, Alexander; Orthous-Daunay, Francois-Regis; Wolters, Cedric; Isa, Junko; Morita, Mayu; Vuitton, Veronique; Thissen, Roland; Nomura, Shin-ichiro M.; Sugahara, Haruna; Mita, Hajime; Furukawa, Yoshihiro; Chikaraishi, Yoshito; Onose, Morihiko; Kabashima, Fumie; Fujishima, Kosuke; Sato, Hajime; Sasaki, Kazunori; Kano, Kuniyuki; Aoki, Junken; Yamazaki, Tomoya; Kimura, Yuki
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Ryugu asteroid sample return provides a natural laboratory for primordial chemical evolution
err2023-05-30
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errOAAI
errOba, Yasuhiro; Takano, Yoshinori; Dworkin, Jason P.; Naraoka, Hiroshi
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