Tomohiro Usui

7.3k citations
234 papers · 5.8k · 5 hit papers · h-index 39

Impact in

    • Astro and Planetary Science
    • Planetary Science and Exploration
    • Origins and Evolution of Life
    • Astrophysics and Star Formation Studies
    • Space Science and Extraterrestrial Life
  • Geophysics top 5%
    • Geological and Geochemical Analysis

Papers in

    • Astro and Planetary Science 160
    • Planetary Science and Exploration 69
    • Origins and Evolution of Life 4
    • Geological and Geochemical Analysis 16
    • High-pressure geophysics and materials 2

Tomohiro Usui

224 papers receiving 5.6k citations

Tomohiro Usui's Hit Papers

Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu 2023 · 173 citations
1730+1+3Years since publication50100150200250

Peers

Tomohiro Usui
Comparison fields: 5 of 95
  • Astronomy and Astrophysics 4.9k
  • Geophysics 511
  • Instrumentation 32
  • Radiation 63
  • Geochemistry and Petrology 44
Replace Matthieu Gounelle with:
Matthieu Gounelle France
Tomoki Nakamura Japan
Seiji Sugita Japan
Kazuhide Nagashima United States
H. Busemann Switzerland
T. Hiroi United States
Alexander N. Krot United States
M. M. Grady United Kingdom
M. Trieloff Germany
J. M. Friedrich United States
Tomohiro Usui relative to Matthieu Gounelle France Matthieu Gounelle's profile →
Citations per field
00.5×2×3×4.3×
Matthieu Gounelle · 1×
Citations per year

Countries citing papers authored by Tomohiro Usui

Since Specialization
Citations

This map shows the geographic impact of Tomohiro Usui'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 Tomohiro Usui with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Tomohiro Usui more than expected).

Fields of papers citing papers by Tomohiro Usui

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Tomohiro Usui. 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 Tomohiro Usui. The network helps show where Tomohiro Usui may publish in the future.

Co-authors

The 25 scholars most cited alongside Tomohiro Usui, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Tomohiro Usui Line = papers co-authored together Tomohiro Usui links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 234 papers — load more, or switch the sort, to bring in the rest.

#Work
1
Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites
Hit paper breakdown →
2022280
2
Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples
Hit paper breakdown →
2022273
3
Preliminary analysis of the Hayabusa2 samples returned from C-type asteroid Ryugu
Hit paper breakdown →
2021254
4
Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu
Hit paper breakdown →
2023173
5 2012168
6
On the origin and evolution of the asteroid Ryugu: A comprehensive geochemical perspective
Hit paper breakdown →
2022167
7 2022139
8 2003123
9 2022121
10 2019112
11 2019109
12 202199
13 202398
14 200895
15 201693
16 202291
17 201488
18 201488
19 202288
20 202280

About Tomohiro Usui

Tomohiro Usui is a scholar working on Astronomy and Astrophysics, Geophysics, Condensed Matter Physics, Instrumentation and Spectroscopy, having authored 234 papers that have together received 5.8k indexed citations. Recurring topics across this work include Astro and Planetary Science (160 papers), Planetary Science and Exploration (69 papers), Geological and Geochemical Analysis (16 papers), Physics of Superconductivity and Magnetism (6 papers), Origins and Evolution of Life (4 papers), Geomagnetism and Paleomagnetism Studies (3 papers), Paleontology and Stratigraphy of Fossils (2 papers) and High-pressure geophysics and materials (2 papers). The work is most often cited by research in Astronomy and Astrophysics (4.9k citations), Geophysics (511 citations), Instrumentation (32 citations), Radiation (63 citations) and Geochemistry and Petrology (44 citations). Tomohiro Usui has collaborated with scholars based in Japan, United States and France. Frequent co-authors include Harry Y. McSWEEN Jr, JOHN H. JONES, Eizo Nakamura, Herwart H. Helmstaedt, Justin I. Simon, Jianhua Wang, C. M. O'd. Alexander, Hiroyuki Kurokawa, Katsura Kobayashi and Christine Floss. Their work appears in journals such as Meteoritics and Planetary Science, Nature Communications, Nature Astronomy, Earth Planets and Space and Geochimica et Cosmochimica Acta.

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.

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