Kunihito Ioka

17.6k total citations
114 papers, 3.5k citations indexed

About

Kunihito Ioka is a scholar working on Astronomy and Astrophysics, Nuclear and High Energy Physics and Oceanography. According to data from OpenAlex, Kunihito Ioka has authored 114 papers receiving a total of 3.5k indexed citations (citations by other indexed papers that have themselves been cited), including 107 papers in Astronomy and Astrophysics, 55 papers in Nuclear and High Energy Physics and 5 papers in Oceanography. Recurrent topics in Kunihito Ioka's work include Gamma-ray bursts and supernovae (83 papers), Pulsars and Gravitational Waves Research (69 papers) and Astrophysics and Cosmic Phenomena (42 papers). Kunihito Ioka is often cited by papers focused on Gamma-ray bursts and supernovae (83 papers), Pulsars and Gravitational Waves Research (69 papers) and Astrophysics and Cosmic Phenomena (42 papers). Kunihito Ioka collaborates with scholars based in Japan, United States and Germany. Kunihito Ioka's co-authors include Takashi Nakamura, Ryo Yamazaki, Kohta Murase, Masaru Shibata, Koutarou Kyutoku, P. Mészáros, Kazumi Kashiyama, T. Nakamura, T. Murakami and Akio Inoue 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

Kunihito Ioka

109 papers receiving 3.3k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kunihito Ioka Japan 32 3.2k 1.7k 112 105 91 114 3.5k
L. Nicastro Italy 24 3.0k 0.9× 937 0.6× 184 1.6× 205 2.0× 100 1.1× 112 3.1k
L. Zampieri Italy 27 2.3k 0.7× 735 0.4× 156 1.4× 154 1.5× 135 1.5× 133 2.4k
J. A. Kennea United States 30 3.0k 0.9× 1.1k 0.7× 341 3.0× 113 1.1× 71 0.8× 285 3.2k
Jonathan Granot United States 37 3.8k 1.2× 1.7k 1.0× 101 0.9× 148 1.4× 56 0.6× 119 3.9k
R. A. M. J. Wijers Netherlands 34 4.0k 1.2× 1.4k 0.8× 115 1.0× 186 1.8× 40 0.4× 163 4.0k
J. Casares Spain 37 4.6k 1.4× 1.1k 0.7× 641 5.7× 140 1.3× 128 1.4× 190 4.7k
Dimitrios Giannios United States 38 3.3k 1.0× 2.2k 1.3× 61 0.5× 56 0.5× 50 0.5× 106 3.5k
A. P. Beardmore United Kingdom 28 2.9k 0.9× 1.1k 0.7× 281 2.5× 107 1.0× 72 0.8× 190 3.0k
M. Feroci Italy 23 3.0k 0.9× 1.0k 0.6× 279 2.5× 135 1.3× 68 0.7× 164 3.2k
Luke F. Roberts United States 23 1.8k 0.6× 1.2k 0.7× 138 1.2× 33 0.3× 79 0.9× 44 2.2k

Countries citing papers authored by Kunihito Ioka

Since Specialization
Citations

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

Fields of papers citing papers by Kunihito Ioka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kunihito Ioka

This figure shows the co-authorship network connecting the top 25 collaborators of Kunihito Ioka. A scholar is included among the top collaborators of Kunihito Ioka 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 Kunihito Ioka. Kunihito Ioka 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.
Murase, Kohta, et al.. (2025). The origin of very-high-energy gamma-rays from GRB 221009A: Implications for reverse shock proton synchrotron emission. Journal of High Energy Astrophysics. 45. 392–408. 10 indexed citations
2.
Ioka, Kunihito, et al.. (2025). Induced Compton scattering in magnetized electron and positron pair plasma. Physical review. D. 111(6). 1 indexed citations
3.
Bošnjak, Ž., B. Theodore Zhang, Kohta Murase, & Kunihito Ioka. (2024). Off-axis MeV and very-high-energy gamma-ray emissions from structured gamma-ray burst jets. Monthly Notices of the Royal Astronomical Society. 528(3). 4307–4313. 2 indexed citations
4.
Matsumoto, Tatsuya, Yuichi Harikane, Keiichi Maeda, & Kunihito Ioka. (2024). Probing the Origin of the Star Formation Excess Discovered by JWST through Gamma-Ray Bursts. The Astrophysical Journal Letters. 976(1). L16–L16. 3 indexed citations
5.
Zhang, B. Theodore, et al.. (2023). External Inverse-compton and Proton Synchrotron Emission from the Reverse Shock as the Origin of VHE Gamma Rays from the Hyper-bright GRB 221009A. The Astrophysical Journal Letters. 947(1). L14–L14. 33 indexed citations
6.
Ioka, Kunihito, et al.. (2023). Cocoon breakout and escape from the ejecta of neutron star mergers. Monthly Notices of the Royal Astronomical Society. 520(1). 1111–1127. 18 indexed citations
7.
Wada, T. & Kunihito Ioka. (2022). Expanding fireball in magnetar bursts and fast radio bursts. Monthly Notices of the Royal Astronomical Society. 519(3). 4094–4109. 12 indexed citations
8.
Yamazaki, Ryo, Kunihito Ioka, & Takashi Nakamura. (2014). A Unified Model of Short and Long Gamma-Ray Bursts, X-Rayndashrich Gamma-Ray Bursts, and X-Ray Flashes. Hiroshima University Acedemic Information Repository (Hiroshima University). 17 indexed citations
9.
Kyutoku, Koutarou, Kunihito Ioka, & Masaru Shibata. (2012). Ultra-Relativistic Counterparts to Binary Neutron Star Mergers in Every Direction, X-ray-to-Radio Bands and Second-to-Day Timescales. arXiv (Cornell University). 3 indexed citations
10.
Souza, Rafael S. de, Naoki Yoshida, & Kunihito Ioka. (2011). Populations III.1 and III.2 gamma-ray bursts: constraints on the event rate for future radio and X-ray surveys. Springer Link (Chiba Institute of Technology). 55 indexed citations
11.
Kashiyama, Kazumi & Kunihito Ioka. (2011). Magnetar asteroseismology with long-term gravitational waves. Physical review. D. Particles, fields, gravitation, and cosmology. 83(8). 15 indexed citations
12.
Ando, Masaki, Seiji Kawamura, Shuichi Sato, et al.. (2010). DECIGO: the Japanese Space Gravitational Wave Antenna. TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES AEROSPACE TECHNOLOGY JAPAN. 8(ists27). Po_4_1–Po_4_6. 1 indexed citations
13.
Murase, Kohta, Kenji Toma, Ryo Yamazaki, Shigehiro Nagataki, & Kunihito Ioka. (2010). High-energy emission as a test of the prior emission model for gamma-ray burst afterglows. Monthly Notices of the Royal Astronomical Society Letters. 402(1). L54–L58. 17 indexed citations
14.
Ioka, Kunihito. (2008). A Gamma-Ray Burst for Cosmic-Ray Positrons with a Spectral Cutoff and Line. arXiv (Cornell University). 2 indexed citations
15.
Kodama, Hideo & Kunihito Ioka. (2008). KEK Cosmophysics Group Inaugural Conference "ACCELERATORS IN THE UNIVERSE" - Interplay between High Energy Physics and Cosmophysics. AIPC. 1040.
16.
Okuzumi, Satoshi, Kunihito Ioka, & Masa‐aki Sakagami. (2008). Possible Discovery of Nonlinear Tail and Quasinormal Modes in Black Hole Ringdown. arXiv (Cornell University). 1 indexed citations
17.
Nakano, Hiroyuki & Kunihito Ioka. (2007). Second-order quasinormal mode of the Schwarzschild black hole. Physical review. D. Particles, fields, gravitation, and cosmology. 76(8). 65 indexed citations
18.
Yamazaki, Ryo, Kenji Toma, Kunihito Ioka, & Takashi Nakamura. (2006). Tail emission of prompt gamma-ray burst jets. Monthly Notices of the Royal Astronomical Society. 369(1). 311–316. 28 indexed citations
19.
Toma, Kenji, Kunihito Ioka, T. Sakamoto, & Takashi Nakamura. (2006). Low-luminosity grb 060218: A collapsar jet from a neutron star?. 1 indexed citations
20.
Ioka, Kunihito & Keisuke Taniguchi. (2000). Gravitational Waves from Inspiraling Compact Binaries with Magnetic Dipole Moments. The Astrophysical Journal. 537(1). 327–333. 40 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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