Isao Okamoto

416 total citations
18 papers, 266 citations indexed

About

Isao Okamoto is a scholar working on Astronomy and Astrophysics, Nuclear and High Energy Physics and Oceanography. According to data from OpenAlex, Isao Okamoto has authored 18 papers receiving a total of 266 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Astronomy and Astrophysics, 9 papers in Nuclear and High Energy Physics and 5 papers in Oceanography. Recurrent topics in Isao Okamoto's work include Astrophysical Phenomena and Observations (8 papers), Pulsars and Gravitational Waves Research (6 papers) and Geophysics and Gravity Measurements (5 papers). Isao Okamoto is often cited by papers focused on Astrophysical Phenomena and Observations (8 papers), Pulsars and Gravitational Waves Research (6 papers) and Geophysics and Gravity Measurements (5 papers). Isao Okamoto collaborates with scholars based in Japan, United States and Russia. Isao Okamoto's co-authors include Kouichi Hirotani, Osamu Kaburaki, Tetsuo Sasao, Joseph Katz, Satoshi Sakai and Renaud Parentani and has published in prestigious journals such as The Astrophysical Journal, Monthly Notices of the Royal Astronomical Society and Geophysical Journal International.

In The Last Decade

Isao Okamoto

16 papers receiving 237 citations

Peers

Isao Okamoto
Osamu Kaburaki Japan
J. H. Bredekamp United States
I. W. Roxburgh United Kingdom
J. A. Newbury United States
M. J. Thompson United Kingdom
R. R. Burman Australia
Simone Albanesi Italy
G. A. E. Wright United Kingdom
A. Grigoriev Sweden
GRA Ellis Australia
Osamu Kaburaki Japan
Isao Okamoto
Citations per year, relative to Isao Okamoto Isao Okamoto (= 1×) peers Osamu Kaburaki

Countries citing papers authored by Isao Okamoto

Since Specialization
Citations

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

Fields of papers citing papers by Isao Okamoto

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Isao Okamoto

This figure shows the co-authorship network connecting the top 25 collaborators of Isao Okamoto. A scholar is included among the top collaborators of Isao Okamoto 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 Isao Okamoto. Isao Okamoto is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

18 of 18 papers shown
1.
Okamoto, Isao. (2015). Black hole electrodynamics: How does unipolar induction work in Kerr black holes?. Publications of the Astronomical Society of Japan. 67(5). 2 indexed citations
2.
Okamoto, Isao. (2012). Peculiar Black-Hole Unipolar Induction. Publications of the Astronomical Society of Japan. 64(3). 4 indexed citations
3.
Okamoto, Isao. (2009). Force-Free Black Hole Magnetospheres. Publications of the Astronomical Society of Japan. 61(5). 971–990. 5 indexed citations
4.
Okamoto, Isao, et al.. (2006). Pulsar Magnetohydrodynamic Winds. Publications of the Astronomical Society of Japan. 58(6). 987–1013. 3 indexed citations
5.
Hirotani, Kouichi & Isao Okamoto. (2002). PAIR PRODUCTION CASCADE IN BLACK-HOLE MAGNETOSPHERE. 217–230.
6.
Okamoto, Isao. (2001). Magnetized centrifugal winds. Monthly Notices of the Royal Astronomical Society. 327(1). 55–68. 8 indexed citations
7.
Hirotani, Kouichi & Isao Okamoto. (1998). Pair Plasma Production in a Force‐free Magnetosphere around a Supermassive Black Hole. The Astrophysical Journal. 497(2). 563–572. 72 indexed citations
8.
Okamoto, Isao, Joseph Katz, & Renaud Parentani. (1995). A comment on fluctuations and stability limits with application to `superheated' black holes. Classical and Quantum Gravity. 12(2). 443–448. 6 indexed citations
9.
Kaburaki, Osamu, Isao Okamoto, & Joseph Katz. (1993). Thermodynamic stability of Kerr black holes. Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields. 47(6). 2234–2241. 51 indexed citations
10.
Okamoto, Isao. (1992). The evolution of a black hole's force-free magnetosphere. Monthly Notices of the Royal Astronomical Society. 254(2). 192–220. 25 indexed citations
11.
Okamoto, Isao & Osamu Kaburaki. (1991). The third law of thermodynamics for Kerr black holes. Monthly Notices of the Royal Astronomical Society. 250(2). 300–309. 5 indexed citations
12.
Kaburaki, Osamu & Isao Okamoto. (1991). Kerr black holes as a Carnot engine. Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields. 43(2). 340–345. 10 indexed citations
13.
Okamoto, Isao, et al.. (1982). Statistical analysis of polar motion data ? I. Theory for the Chandler wobble analysis. Geophysical Journal International. 69(3). 669–719.
14.
Sasao, Tetsuo, Isao Okamoto, & Satoshi Sakai. (1977). Dissipative Core-Mantle Coupling and Nutational Motion of the Earth. Publications of the Astronomical Society of Japan. 29(1). 83–105. 41 indexed citations
15.
Okamoto, Isao & Tetsuo Sasao. (1977). On the Ellipticity of the Chandler Wobble. Publications of the Astronomical Society of Japan. 29(1). 107–127. 2 indexed citations
16.
Okamoto, Isao, et al.. (1975). Is the Nutation of the Solid Inner Core Responsible for the 24-Year Libration of the Pole?. Publications of the Astronomical Society of Japan. 27(2). 357–365. 28 indexed citations
17.
Okamoto, Isao. (1969). On the Loss of Angular Momentum from the Protosun and the Formation of the Solar System. Publications of the Astronomical Society of Japan. 21(1). 25–53. 2 indexed citations
18.
Okamoto, Isao. (1967). The Pulsational Instability of Stars in the Pre-Main Sequence Phase. Publications of the Astronomical Society of Japan. 19(3). 384–408. 2 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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