Kazuhiro Oyamatsu

3.0k total citations · 1 hit paper
62 papers, 2.2k citations indexed

About

Kazuhiro Oyamatsu is a scholar working on Nuclear and High Energy Physics, Astronomy and Astrophysics and Aerospace Engineering. According to data from OpenAlex, Kazuhiro Oyamatsu has authored 62 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Nuclear and High Energy Physics, 28 papers in Astronomy and Astrophysics and 18 papers in Aerospace Engineering. Recurrent topics in Kazuhiro Oyamatsu's work include Nuclear physics research studies (36 papers), Pulsars and Gravitational Waves Research (27 papers) and Nuclear reactor physics and engineering (18 papers). Kazuhiro Oyamatsu is often cited by papers focused on Nuclear physics research studies (36 papers), Pulsars and Gravitational Waves Research (27 papers) and Nuclear reactor physics and engineering (18 papers). Kazuhiro Oyamatsu collaborates with scholars based in Japan, United States and China. Kazuhiro Oyamatsu's co-authors include Kei Iida, Kohsuke Sumiyoshi, H. Toki, Hong Shen, Hajime Sotani, Ken’ichiro Nakazato, Masami Yamada, Akihisa Kohama, Kei Iida and Koji Niita and has published in prestigious journals such as Physical Review Letters, The Astrophysical Journal and Monthly Notices of the Royal Astronomical Society.

In The Last Decade

Kazuhiro Oyamatsu

57 papers receiving 2.2k citations

Hit Papers

Relativistic equation of state of nuclear matter for supe... 1998 2026 2007 2016 1998 100 200 300 400 500
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Relativistic equation of state of nuclear matter for supernova and neutron star
    1998 574 citations Hong Shen, H. Toki et al. Nuclear Physics A profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kazuhiro Oyamatsu Japan 23 1.6k 1.3k 582 342 188 62 2.2k
F. D. Seward United States 31 2.4k 1.5× 1.4k 1.1× 289 0.5× 214 0.6× 265 1.4× 124 2.8k
Ad. R. Raduta Romania 22 1.1k 0.7× 785 0.6× 471 0.8× 231 0.7× 71 0.4× 70 1.6k
H. Bradt United States 23 2.4k 1.5× 823 0.6× 448 0.8× 101 0.3× 164 0.9× 137 2.6k
Steven E. Boggs United States 30 2.7k 1.7× 1.5k 1.1× 397 0.7× 115 0.3× 508 2.7× 179 3.2k
G. Védrenne France 22 2.3k 1.4× 1.3k 1.0× 235 0.4× 132 0.4× 290 1.5× 185 2.7k
D. G. Yakovlev Russia 31 2.4k 1.5× 991 0.8× 994 1.7× 815 2.4× 109 0.6× 102 2.9k
George G. Pavlov United States 35 3.3k 2.1× 1.3k 1.0× 840 1.4× 223 0.7× 63 0.3× 175 3.5k
P. Kaaret United States 38 4.1k 2.6× 1.8k 1.4× 512 0.9× 114 0.3× 192 1.0× 205 4.3k
K. Dennerl Germany 23 1.6k 1.0× 436 0.3× 172 0.3× 525 1.5× 412 2.2× 119 2.0k
Samuel E. Gralla United States 27 1.9k 1.2× 1.9k 1.5× 133 0.2× 485 1.4× 177 0.9× 58 2.7k

Countries citing papers authored by Kazuhiro Oyamatsu

Since Specialization
Citations

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

Fields of papers citing papers by Kazuhiro Oyamatsu

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kazuhiro Oyamatsu

This figure shows the co-authorship network connecting the top 25 collaborators of Kazuhiro Oyamatsu. A scholar is included among the top collaborators of Kazuhiro Oyamatsu 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 Kazuhiro Oyamatsu. Kazuhiro Oyamatsu 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.
Oyamatsu, Kazuhiro. (2023). Nuclear masses and the equation of state of nuclear matter. Progress of Theoretical and Experimental Physics. 2023(6). 1 indexed citations
2.
Sotani, Hajime, Kei Iida, & Kazuhiro Oyamatsu. (2017). Probing crustal structures from neutron star compactness. Monthly Notices of the Royal Astronomical Society. 470(4). 4397–4407. 19 indexed citations
3.
Kohama, Akihisa, Kei Iida, & Kazuhiro Oyamatsu. (2016). Energy and Mass-Number Dependence of Hadron–Nucleus Total Reaction Cross Sections. Journal of the Physical Society of Japan. 85(9). 94201–94201. 10 indexed citations
4.
Sotani, Hajime, Kei Iida, & Kazuhiro Oyamatsu. (2016). Probing nuclear bubble structure via neutron star asteroseismology. Monthly Notices of the Royal Astronomical Society. 464(3). 3101–3107. 36 indexed citations
5.
Sotani, Hajime, Ken’ichiro Nakazato, Kei Iida, & Kazuhiro Oyamatsu. (2013). Possible constraints on the density dependence of the nuclear symmetry energy from quasi-periodic oscillations in soft gamma repeaters. Monthly Notices of the Royal Astronomical Society. 434(3). 2060–2068. 59 indexed citations
6.
Iida, Kei, et al.. (2012). PROTON INELASTIC DIFFRACTION BY A BLACK NUCLEUS AND THE SIZE OF EXCITED NUCLEI. Modern Physics Letters A. 27(3). 1250020–1250020. 7 indexed citations
7.
Kohama, Akihisa, Kei Iida, & Kazuhiro Oyamatsu. (2011). Study of nuclear matter density distributions using hadronic probes. AIP conference proceedings. 115–118. 1 indexed citations
8.
Nakazato, Ken’ichiro, Kazuhiro Oyamatsu, & Shoichi Yamada. (2009). Gyroid Phase in Nuclear Pasta. Physical Review Letters. 103(13). 132501–132501. 36 indexed citations
9.
Iida, Kei, Akihisa Kohama, & Kazuhiro Oyamatsu. (2007). Formula for Proton-Nucleus Reaction Cross Section at Intermediate Energies and Its Application(Nuclear physics). Journal of the Physical Society of Japan. 76(4).
10.
Oyamatsu, Kazuhiro, et al.. (2006). 20pSE-7 Cluster Variational Calculation of the Equation Of State for Infinite Nuclear Matter II. 61(2). 9.
11.
Kohama, Akihisa, Kei Iida, & Kazuhiro Oyamatsu. (2004). Nuclear radius deduced from proton diffraction by a black nucleus. Physical Review C. 69(6). 22 indexed citations
12.
Oyamatsu, Kazuhiro & Kei Iida. (2003). Empirical properties of asymmetric nuclear matter to be obtained from unstable nuclei. Nuclear Physics A. 718. 363–366. 3 indexed citations
13.
Yoshida, Tadashi, Shigeaki Okajima, Takeshi Sakurai, et al.. (2002). Evaluation of Delayed Neutron Data for JENDL-3.3. Journal of Nuclear Science and Technology. 39(sup2). 136–139. 5 indexed citations
14.
Katakura, J., et al.. (2002). Development of JENDL FP Decay Data File 2000. Journal of Nuclear Science and Technology. 39(sup2). 444–449. 7 indexed citations
15.
Katakura, J., Tadashi Yoshida, Kazuhiro Oyamatsu, & Takahiro Tachibana. (2001). Estimation of Beta- and Gamma-Ray Spectra for JENDL FP Decay Data File.. Journal of Nuclear Science and Technology. 38(7). 470–476. 2 indexed citations
16.
Sumiyoshi, Kohsuke, Hong Shen, Kazuhiro Oyamatsu, et al.. (2000). Unstable Nuclei and EOS Table for Supernova Explosion and r-Process in Relativistic Many Body Approach. STIN. 133. 1 indexed citations
17.
Shen, Hong, H. Toki, Kazuhiro Oyamatsu, & Kohsuke Sumiyoshi. (1998). Relativistic Equation of State of Nuclear Matter for Supernova Explosion. 196 indexed citations
18.
Oyamatsu, Kazuhiro, I. Tanihata, Yusuke Sugahara, Kohsuke Sumiyoshi, & H. Toki. (1998). Can the equation of state of asymmetric nuclear matter be studied using unstable nuclei?. Nuclear Physics A. 634(1-2). 3–14. 56 indexed citations
19.
Hashimoto, Masa Aki, Kazuhiro Oyamatsu, & Yoshiharu Eriguchi. (1994). Upper limit of the angular velocity of neutron stars. The Astrophysical Journal. 436. 257–257. 14 indexed citations
20.
Oyamatsu, Kazuhiro, Masaru Hashimoto, & Masami Yamada. (1984). Further Study of the Nuclear Shape in High-Density Matter. Progress of Theoretical Physics. 72(2). 373–375. 44 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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