Kohei Hattori

605 total citations
24 papers, 349 citations indexed

About

Kohei Hattori is a scholar working on Astronomy and Astrophysics, Instrumentation and Computational Mechanics. According to data from OpenAlex, Kohei Hattori has authored 24 papers receiving a total of 349 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Astronomy and Astrophysics, 10 papers in Instrumentation and 1 paper in Computational Mechanics. Recurrent topics in Kohei Hattori's work include Stellar, planetary, and galactic studies (22 papers), Astrophysics and Star Formation Studies (16 papers) and Astronomy and Astrophysical Research (10 papers). Kohei Hattori is often cited by papers focused on Stellar, planetary, and galactic studies (22 papers), Astrophysics and Star Formation Studies (16 papers) and Astronomy and Astrophysical Research (10 papers). Kohei Hattori collaborates with scholars based in Japan, United States and China. Kohei Hattori's co-authors include Denis Erkal, Jason L. Sanders, Timothy C. Beers, Yuzuru Yoshii, Young Sun Lee, D. Carollo, Norita Kawanaka, Ataru Tanikawa, D. Tsuna and A. Helmi and has published in prestigious journals such as The Astrophysical Journal, Monthly Notices of the Royal Astronomical Society and The Astrophysical Journal Supplement Series.

In The Last Decade

Kohei Hattori

22 papers receiving 303 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kohei Hattori Japan 12 306 148 26 24 17 24 349
R. Williams United States 14 372 1.2× 21 0.1× 20 0.8× 13 0.5× 191 11.2× 46 426
A. V. Fedorovа Russia 10 319 1.0× 55 0.4× 7 0.3× 30 1.8× 56 344
Sun Mi Chung United States 9 220 0.7× 92 0.6× 2 0.1× 37 2.2× 14 243
Cinthya N. Herrera France 9 161 0.5× 28 0.2× 22 0.9× 6 0.4× 19 201
Namrata Roy United States 9 159 0.5× 52 0.4× 2 0.1× 44 2.6× 23 192
Emma Fernández-Alvar Spain 13 320 1.0× 210 1.4× 13 0.8× 24 343
C. Sahlholdt Sweden 10 320 1.0× 161 1.1× 16 0.9× 12 338
A. Garofalo Italy 11 283 0.9× 168 1.1× 17 1.0× 19 300
S. Duffau Chile 12 414 1.4× 192 1.3× 22 1.3× 22 417
F. Surot Italy 10 239 0.8× 126 0.9× 12 0.7× 20 250

Countries citing papers authored by Kohei Hattori

Since Specialization
Citations

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

Fields of papers citing papers by Kohei Hattori

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kohei Hattori

This figure shows the co-authorship network connecting the top 25 collaborators of Kohei Hattori. A scholar is included among the top collaborators of Kohei Hattori 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 Kohei Hattori. Kohei Hattori 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.
Hattori, Kohei, et al.. (2025). Discovery of WINERED-HVS1: A Metal-rich Hypervelocity Star Candidate Ejected from the Galactic Center. The Astrophysical Journal. 989(2). 142–142.
2.
Hattori, Kohei, et al.. (2025). A greedy and optimistic clustering for leveraging individual covariate uncertainty. Annals of the Institute of Statistical Mathematics. 78(2). 275–296. 1 indexed citations
3.
Hattori, Kohei. (2025). Metallicity and α-abundance for 48 Million Stars in Low-extinction Regions in the Milky Way. The Astrophysical Journal. 980(1). 90–90. 4 indexed citations
4.
Roederer, Ian U., Timothy C. Beers, Kohei Hattori, et al.. (2024). The R-Process Alliance: 2MASS J22132050–5137385, the Star with the Highest-known r-process Enhancement at [Eu/Fe] = +2.45*. The Astrophysical Journal. 971(2). 158–158. 11 indexed citations
5.
Hattori, Kohei, et al.. (2023). Finding r-II Sibling Stars in the Milky Way with the Greedy Optimistic Clustering Algorithm. The Astrophysical Journal. 946(1). 48–48. 11 indexed citations
6.
Tanikawa, Ataru, Kohei Hattori, Norita Kawanaka, et al.. (2023). Search for a Black Hole Binary in Gaia DR3 Astrometric Binary Stars with Spectroscopic Data. The Astrophysical Journal. 946(2). 79–79. 36 indexed citations
7.
Kotani, Takayuki, Hajime Kawahara, Takayuki Muto, et al.. (2022). Dippers from TESS Full-frame Images. II. Spectroscopic Characterization of Four Young Dippers. The Astrophysical Journal Supplement Series. 259(2). 40–40. 1 indexed citations
8.
Fujii, Michiko S., Kohei Hattori, Long Wang, et al.. (2022). SIRIUS Project – V. Formation of off-centre ionized bubbles associated with Orion Nebula Cluster. Monthly Notices of the Royal Astronomical Society. 514(1). 43–54. 8 indexed citations
9.
Matsuno, Tadafumi, Helmer H. Koppelman, A. Helmi, et al.. (2022). High-precision chemical abundances of Galactic building blocks. Astronomy and Astrophysics. 665. A46–A46. 22 indexed citations
10.
Matsuno, Tadafumi, Helmer H. Koppelman, A. Helmi, et al.. (2022). High-precision chemical abundances of Galactic building blocks. Astronomy and Astrophysics. 661. A103–A103. 25 indexed citations
11.
Li, Yin-Bi, A-Li Luo, Youjun Lu, et al.. (2020). 591 High-velocity Stars in the Galactic Halo Selected from LAMOST DR7 and Gaia DR2. The Astrophysical Journal Supplement Series. 252(1). 3–3. 31 indexed citations
12.
Cain, Madelyn, Anna Frebel, Alexander P. Ji, et al.. (2020). The R-Process Alliance: A Very Metal-poor, Extremely r-process-enhanced Star with [Eu/Fe] = + 2.2, and the Class of r-III Stars. DSpace@MIT (Massachusetts Institute of Technology). 16 indexed citations
13.
Kawahara, Hajime, Michiko S. Fujii, Kohei Hattori, et al.. (2020). Dippers from the TESS Full-frame Images. I. Results of the First One Year Data and Discovery of a Runaway Dipper. The Astrophysical Journal Supplement Series. 251(2). 18–18. 14 indexed citations
14.
Hattori, Kohei, Monica Valluri, Sarah Loebman, & Eric F. Bell. (2017). Reliability of the Measured Velocity Anisotropy of the Milky Way Stellar Halo. The Astrophysical Journal. 841(2). 91–91. 10 indexed citations
15.
Hattori, Kohei, Denis Erkal, & Jason L. Sanders. (2016). Shepherding tidal debris with the Galactic bar: the Ophiuchus stream. Monthly Notices of the Royal Astronomical Society. 460(1). 497–512. 43 indexed citations
16.
Hattori, Kohei & G. Gilmore. (2015). Vertical kinematics of the thick disc at 4.5 ≲R≲ 9.5 kpc. Monthly Notices of the Royal Astronomical Society. 454(1). 649–656. 3 indexed citations
17.
Hattori, Kohei, Yuzuru Yoshii, Timothy C. Beers, D. Carollo, & Young Sun Lee. (2013). VERY METAL-POOR OUTER-HALO STARS WITH ROUND ORBITS. The Astrophysical Journal Letters. 763(1). L17–L17. 28 indexed citations
18.
Hattori, Kohei & Yuzuru Yoshii. (2011). The orbital eccentricity distribution of solar-neighbourhood halo stars. Monthly Notices of the Royal Astronomical Society. 418(4). 2481–2492. 4 indexed citations
19.
Hattori, Kohei & Yuzuru Yoshii. (2010). A new test for the Galactic formation and evolution - prediction for the orbital eccentricity distribution of the halo stars. Monthly Notices of the Royal Astronomical Society. 408(4). 2137–2148. 2 indexed citations
20.
Orito, Etsuro, Tomoyoshi Ohno, Fuminaka Sugauchi, et al.. (2003). Loss of hepatitis C virus RNA after parturition in female patients with chronic HCV infection. Journal of Medical Virology. 71(2). 205–211. 26 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.

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