Yasuhiro Oba

3.0k total citations
63 papers, 1.7k citations indexed

About

Yasuhiro Oba is a scholar working on Astronomy and Astrophysics, Spectroscopy and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Yasuhiro Oba has authored 63 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Astronomy and Astrophysics, 23 papers in Spectroscopy and 20 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Yasuhiro Oba's work include Astrophysics and Star Formation Studies (20 papers), Molecular Spectroscopy and Structure (19 papers) and Advanced Chemical Physics Studies (19 papers). Yasuhiro Oba is often cited by papers focused on Astrophysics and Star Formation Studies (20 papers), Molecular Spectroscopy and Structure (19 papers) and Advanced Chemical Physics Studies (19 papers). Yasuhiro Oba collaborates with scholars based in Japan, United States and Sri Lanka. Yasuhiro Oba's co-authors include Naoki Watanabe, Akira Kouchi, Hiroshi Naraoka, Koh Iba, Mimi Hashimoto, Hirofumi Uchimiya, Juntaro Negi, Hideyuki Takahashi, Takashi Nagasawa and Osamu Matsuda and has published in prestigious journals such as Nature, Nature Communications and The Astrophysical Journal.

In The Last Decade

Yasuhiro Oba

58 papers receiving 1.6k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Yasuhiro Oba Japan 22 705 468 452 379 348 63 1.7k
Patrice Coll France 29 1.7k 2.4× 197 0.4× 414 0.9× 260 0.7× 379 1.1× 106 2.5k
Michael P. Callahan United States 28 1.2k 1.8× 188 0.4× 629 1.4× 381 1.0× 98 0.3× 62 2.5k
R. Navarro‐González Mexico 31 2.1k 3.0× 101 0.2× 304 0.7× 181 0.5× 539 1.5× 186 3.4k
Zita Martins United Kingdom 24 1.8k 2.5× 70 0.1× 311 0.7× 152 0.4× 242 0.7× 64 2.3k
Martin Ferus Czechia 23 753 1.1× 39 0.1× 301 0.7× 310 0.8× 120 0.3× 92 1.4k
Feng Tian China 28 2.1k 3.0× 66 0.1× 122 0.3× 110 0.3× 559 1.6× 75 2.8k
Cyril Szopa France 29 2.0k 2.8× 58 0.1× 714 1.6× 232 0.6× 335 1.0× 149 2.6k
W. Thiemann Germany 17 730 1.0× 56 0.1× 376 0.8× 252 0.7× 129 0.4× 38 1.3k
Hervé Cottin France 24 1.9k 2.7× 61 0.1× 495 1.1× 332 0.9× 485 1.4× 85 2.3k
Paul B. Rimmer United Kingdom 24 1.3k 1.8× 48 0.1× 170 0.4× 108 0.3× 331 1.0× 76 1.5k

Countries citing papers authored by Yasuhiro Oba

Since Specialization
Citations

This map shows the geographic impact of Yasuhiro Oba's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Yasuhiro Oba with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Yasuhiro Oba more than expected).

Fields of papers citing papers by Yasuhiro Oba

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Yasuhiro Oba. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Yasuhiro Oba. The network helps show where Yasuhiro Oba may publish in the future.

Co-authorship network of co-authors of Yasuhiro Oba

This figure shows the co-authorship network connecting the top 25 collaborators of Yasuhiro Oba. A scholar is included among the top collaborators of Yasuhiro Oba based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Yasuhiro Oba. Yasuhiro Oba is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
Furukawa, Yoshihiro, Yoshinori Takano, Toshiki Koga, et al.. (2025). Bio-essential sugars in samples from asteroid Bennu. Nature Geoscience. 19(1). 19–24. 1 indexed citations
3.
4.
Koga, Toshiki, et al.. (2025). Compound-Specific Carbon and Nitrogen Isotopic Analyses of Underivatized Pyrimidine and Purine Nucleobases. ACS Earth and Space Chemistry. 9(3). 424–432. 2 indexed citations
5.
Oba, Yasuhiro, Yoshinori Takano, Jason P. Dworkin, & Hiroshi Naraoka. (2023). Ryugu asteroid sample return provides a natural laboratory for primordial chemical evolution. Nature Communications. 14(1). 3107–3107. 10 indexed citations
6.
Koga, Toshiki, Yoshinori Takano, Yasuhiro Oba, Hiroshi Naraoka, & Naohiko Ohkouchi. (2023). Abundant extraterrestrial purine nucleobases in the Murchison meteorite: Implications for a unified mechanism for purine synthesis in carbonaceous chondrite parent bodies. Geochimica et Cosmochimica Acta. 365. 253–265. 7 indexed citations
7.
Oba, Yasuhiro, et al.. (2023). Surface Reaction of Methyl Mercaptan (CH3SH) with Hydrogen Atoms on Amorphous Solid Water. The Astrophysical Journal. 944(2). 219–219. 6 indexed citations
8.
Sameera, W. M. C., et al.. (2023). A systematic mechanistic survey on the reactions between OH radical and CH3OH on ice. Faraday Discussions. 245(0). 508–518. 3 indexed citations
9.
Takahashi, Satoshi, et al.. (2022). Maleimide index: a paleo-redox index based on fragmented fossil-chlorophylls obtained by chromic acid oxidation. RSC Advances. 12(48). 31061–31067. 1 indexed citations
10.
Oba, Yasuhiro, Yoshinori Takano, Yoshihiro Furukawa, et al.. (2022). Identifying the wide diversity of extraterrestrial purine and pyrimidine nucleobases in carbonaceous meteorites. Nature Communications. 13(1). 2008–2008. 76 indexed citations
11.
Takano, Yoshinori, Yasuhiro Oba, Satoshi Furota, et al.. (2021). Analytical development of seamless procedures on cation-exchange chromatography and ion-pair chromatography with high-precision mass spectrometry for short-chain peptides. International Journal of Mass Spectrometry. 463. 116529–116529. 9 indexed citations
12.
Nakano, Hideyuki, Yasuhiro Matsubara, Shigeru Yamashita, et al.. (2020). Precometary organic matter: A hidden reservoir of water inside the snow line. Scientific Reports. 10(1). 7755–7755. 16 indexed citations
13.
Oba, Yasuhiro, Yoshinori Takano, Hiroshi Naraoka, et al.. (2020). Extraterrestrial hexamethylenetetramine in meteorites—a precursor of prebiotic chemistry in the inner solar system. Nature Communications. 11(1). 6243–6243. 35 indexed citations
14.
Oba, Yasuhiro, Yoshinori Takano, Hiroshi Naraoka, Naoki Watanabe, & Akira Kouchi. (2019). Nucleobase synthesis in interstellar ices. Nature Communications. 10(1). 4413–4413. 80 indexed citations
15.
Oba, Yasuhiro, Yoshinori Takano, Hiroshi Naraoka, Akira Kouchi, & Naoki Watanabe. (2017). Deuterium Fractionation upon the Formation of Hexamethylenetetramines through Photochemical Reactions of Interstellar Ice Analogs Containing Deuterated Methanol Isotopologues. The Astrophysical Journal. 849(2). 122–122. 12 indexed citations
16.
Oba, Yasuhiro, Yoshinori Takano, Naoki Watanabe, & Akira Kouchi. (2016). DEUTERIUM FRACTIONATION DURING AMINO ACID FORMATION BY PHOTOLYSIS OF INTERSTELLAR ICE ANALOGS CONTAINING DEUTERATED METHANOL. The Astrophysical Journal Letters. 827(1). L18–L18. 26 indexed citations
17.
Kaneko, Masanori, Yasuhiro Oba, & Hiroshi Naraoka. (2010). Vertical carbon isotope change in acetate in a surface sediment from the northwestern Pacific Ocean. 26. 73–79.
18.
Chikaraishi, Yoshito & Yasuhiro Oba. (2008). Compound-specific isotope analysis (CSIA) by gas chromatography/isotope ratio mass spectrometer (GC/IRMS). 23. 99–122. 2 indexed citations
19.
20.
Oba, Yasuhiro, et al.. (2001). On the distributions of mass, thickness and density in paper.. Appita journal. 54(4). 385–389. 13 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Patrice Coll Breakdown of academic impact, for papers by Michael P. Callahan Breakdown of academic impact, for papers by R. Navarro‐González Breakdown of academic impact, for papers by Zita Martins Breakdown of academic impact, for papers by Martin Ferus Breakdown of academic impact, for papers by Feng Tian Breakdown of academic impact, for papers by Cyril Szopa Breakdown of academic impact, for papers by W. Thiemann Breakdown of academic impact, for papers by Hervé Cottin Breakdown of academic impact, for papers by Paul B. Rimmer
Rankless by CCL
2026