YO
Yasuhiro Oba
astro-ph.GAastro-ph.SRastro-ph.EPastro-ph.IMAsteroids, comets and Kuiper beltAstrobiologyastro-ph.COMeteoroids
On Valency
published · living versionsW_k39r75yp·v1 · currentpublished
FAUST XXXII. Chemically layered structures and ionisation in the disk and envelope of NGC 1333 IRAS 4C
with Shota Notsu, Nami Sakai, Yichen Zhang, Ana Lopez-Sepulcre +69
1 version
Preprints & journals
40 papers in the corpus · 2006–2026Thermally irreversible sulfur chemisorption on silicate grains as a major sulfur reservoir in molecular clouds2609.37663v1 · Ni-En Sie, Masashi Tsuge, Yasuhiro Oba et al.2026 · 0 citationsarXiv
OSIRIS-REx Returned a Pristine Sample of Asteroid Bennu: Takeaways from the Mission's Contamination Control and Knowledge Program2609.12249v1 · Jason P. Dworkin, Scott A. Sandford, Nicole G. Lunning et al.2026 · 0 citationsarXiv
Direct observation of organic molecules in asteroid ryugu revealed by high-resolution atomic force microscope.41980933 · Iwata, Kota, Oba, Yasuhiro, Naraoka, Hiroshi et al.2026 · 3 citationsNature communications. 2026;17(1)
Distribution of extraterrestrial nucleobases, other N-heterocycles, and their precursors in a sample from asteroid Bennu.41927914 · Oba, Yasuhiro, Koga, Toshiki, Takano, Yoshinori et al.2026 · 5 citationsCommunications chemistry. 2026;9(1)
Experimental and computational studies of the hydrogenation of carbon disulfide (CS2) on ice analogues2602.21126v1 · Thanh Nguyen, Germ'an Molpeceres, Yasuhiro Oba et al.2026 · 0 citationsarXiv
Methanol Formation via the Radical-radical Reaction of OH and CH3 Radicals Undergoing Transient Diffusion on Ice at 10 to 60 K2601.05757v1 · Arisa Iguchi, Hiroshi Hidaka, Atsuki Ishibashi et al.2026 · 0 citationsarXiv
Hydrogenation of HOCO and formation of interstellar CO: A not so straightforward relation2503.01692v1 · Germ'an Molpeceres, Joan Enrique-Romero, Atsuki Ishibashi et al.2025 · 9 citationsarXiv
Abundant ammonia and nitrogen-rich soluble organic matter in samples from asteroid (101955) Bennu.39990238 · Glavin, Daniel P, Dworkin, Jason P, Alexander, Conel M O'D et al.2025 · 171 citationsNature astronomy. 2025;9(2):199-210
Hydrogenation of acetaldehyde on interstellar ice analogs reveals limited destruction2412.17529v1 · Germ'an Molpeceres, Thanh Nguyen, Yasuhiro Oba et al.2024 · 5 citationsA&A 694, A299 (2025)
Chemical pathways of SO2 with hydrogen atoms on interstellar ice analogues2411.09129v1 · Thanh Nguyen, Yasuhiro Oba, W. M. C. Sameera et al.2024 · 5 citationsarXiv
Proposed importance of HOCO chemistry: Inefficient formation of CO from CO and OH reactions on ice dust2410.01373v1 · Atsuki Ishibashi, Germ'an Molpeceres, Hiroshi Hidaka et al.2024 · 17 citationsarXiv
Primordial aqueous alteration recorded in water-soluble organic molecules from the carbonaceous asteroid (162173) Ryugu.38987536 · Takano, Yoshinori, Naraoka, Hiroshi, Dworkin, Jason P et al.2024 · 27 citationsNature communications. 2024;15(1):5708
FAUST XVII: Super deuteration in the planet forming system IRS 63 where the streamer strikes the disk2407.04813v1 · L. Podio, C. Ceccarelli, C. Codella et al.2024 · 21 citationsA&A 688, L22 (2024)
Multiple chemical tracers finally unveil the intricate NGC\,1333 IRAS\,4A outflow system. FAUST XVI2405.12735v1 · Layal Chahine, Cecilia Ceccarelli, Marta De Simone et al.2024 · 11 citationsarXiv
FAUST XIII. Dusty cavity and molecular shock driven by IRS7B in the Corona Australis cluster2403.18108v2 · G. Sabatini, L. Podio, C. Codella et al.2024 · 0 citationsarXiv
Polycyclic aromatic hydrocarbons in samples of Ryugu formed in the interstellar medium.38127762 · Zeichner, Sarah S, Aponte, José C, Bhattacharjee, Surjyendu et al.2025 · 74 citationsScience (New York, N.Y.). 2023;382(6677):1411-1416
A systematic mechanistic survey on the reactions between OH radical and CH3OH on ice.37335277 · Sameera, W M C, Jayaweera, Avon P, Ishibashi, Atsuki et al.2023 · 4 citationsFaraday discussions. 2023;245(0):508-518
Determination of the branching ratio of CHOH + OH reaction on water ice surface at 10 K2309.10351v1 · Atsuki Ishibashi, Hiroshi Hidaka, W. M. C. Sameera et al.2023 · 8 citationsarXiv
Chemical evolution of primordial salts and organic sulfur molecules in the asteroid 162173 Ryugu.37723151 · Yoshimura, Toshihiro, Takano, Yoshinori, Naraoka, Hiroshi et al.2023 · 50 citationsNature communications. 2023;14(1):5284
Ryugu asteroid sample return provides a natural laboratory for primordial chemical evolution.37253735 · Oba, Yasuhiro, Takano, Yoshinori, Dworkin, Jason P et al.2023 · 29 citationsNature communications. 2023;14(1):3107
Uracil in the carbonaceous asteroid (162173) Ryugu.36944653 · Oba, Yasuhiro, Koga, Toshiki, Takano, Yoshinori et al.2023 · 104 citationsNature communications. 2023;14(1):1292
Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu.36821691 · Naraoka, Hiroshi, Takano, Yoshinori, Dworkin, Jason P et al.2023 · 240 citationsScience (New York, N.Y.). 2023;379(6634):eabn9033
Maleimide index: a paleo-redox index based on fragmented fossil-chlorophylls obtained by chromic acid oxidation.36349002 · Asahina, Kenta, Takahashi, Satoshi, Saito, Ryosuke et al.2024 · 3 citationsRSC advances. 2022;12(48):31061-31067
Hot methanol in the [BHB2007] 11 protobinary system: hot corino versus shock origin? : FAUST V2206.10176v1 · C. Vastel, F. Alves, C. Ceccarelli et al.2022 · 23 citationsA&A 664, A171 (2022)
Diffusion activation energy and desorption activation energy for astrochemically relevant species on water ice show no clear relation2206.07225v1 · Kenji Furuya, Tetsuya Hama, Yasuhiro Oba et al.2022 · 40 citationsarXiv
Identifying the wide diversity of extraterrestrial purine and pyrimidine nucleobases in carbonaceous meteorites.35473908 · Oba, Yasuhiro, Takano, Yoshinori, Furukawa, Yoshihiro et al.2022 · 173 citationsNature communications. 2022;13(1):2008
Hydrogen abstraction reactions in formic and thioformic acid isomers by hydrogen and deuterium atoms. Insights on isomerism and deuteration2204.02935v1 · Germ'an Molpeceres, Izaskun Jim'enez-Serra, Yasuhiro Oba et al.2022 · 22 citationsA&A 663, A41 (2022)
FAUST III. Misaligned rotations of the envelope, outflow, and disks in the multiple protostellar system of VLA 1623$-$24172201.07334v1 · Satoshi Ohashi, Claudio Codella, Nami Sakai et al.2022 · 33 citationsarXiv
Quantifying the chemical desorption of HS and PH from amorphous water ice surfaces2112.04334v1 · Kenji Furuya, Yasuhiro Oba, Takashi Shimonishi2021 · 27 citationsarXiv
Efficient formation pathway of methyl formate: the role of OH radicals on ice dust2110.07765v1 · A. Ishibashi, H. Hidaka, Y. Oba et al.2021 · 29 citationsarXiv
Successive H-atom addition to solid OCS on compact amorphous solid water2109.02296v2 · Thanh Nguyen, Yasuhiro Oba, W. M. C. Sameera et al.2021 · 18 citationsApJ, 922, 146 (2021)
Extraterrestrial hexamethylenetetramine in meteorites-a precursor of prebiotic chemistry in the inner solar system.33288754 · Oba, Yasuhiro, Takano, Yoshinori, Naraoka, Hiroshi et al.2020 · 57 citationsNature communications. 2020;11(1):6243
FAUST I. The hot corino at the heart of the prototypical Class I protostar L1551 IRS52007.10275v1 · E. Bianchi, C. J. Chandler, C. Ceccarelli et al.2020 · 53 citationsarXiv
Precometary organic matter: A hidden reservoir of water inside the snow line.32385395 · Nakano, Hideyuki, Hirakawa, Naoki, Matsubara, Yasuhiro et al.2021 · 23 citationsScientific reports. 2020;10(1):7755
Nucleobase synthesis in interstellar ices.31562325 · Oba, Yasuhiro, Takano, Yoshinori, Naraoka, Hiroshi et al.2020 · 125 citationsNature communications. 2019;10(1):4413
An infrared measurement of chemical desorption from interstellar ice analogues1810.04669v1 · Y. Oba, T. Tomaru, T. Lamberts et al.2018 · 100 citationsOba et al. (2018) Nature Astronomy, 2, 228-232
Liquid-like behavior of UV-irradiated interstellar ice analog at low temperatures.28975154 · Tachibana, Shogo, Kouchi, Akira, Hama, Tetsuya et al.2024 · 43 citationsScience advances. 2017;3(9):eaao2538
Reaction kinetics and isotope effect of water formation by the surface reaction of solid H2O2 with H atoms at low temperatures.25302380 · Oba, Yasuhiro, Osaka, Kazuya, Watanabe, Naoki et al.2014 · 35 citationsFaraday discussions. 2014;168:185-204
Experimental studies of surface reactions among OH radicals that yield H2O and CO2 at 40-60 K.21727985 · Oba, Yasuhiro, Watanabe, Naoki, Kouchi, Akira et al.2011 · 44 citationsPhysical chemistry chemical physics : PCCP. 2011;13(35):15792-7
Site-specific carbon isotope analysis of aromatic carboxylic acids by elemental analysis/pyrolysis/isotope ratio mass spectrometry.17094169 · Oba, Yasuhiro, Naraoka, Hiroshi2007 · 13 citationsRapid communications in mass spectrometry : RCM. 2006;20(24):3649-53
Career total: at least 169 works. 40 are in this corpus.
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