Seiji ZENITANI
Institut für Weltraumforschung (Space Research Institute)
Schmiedlstraße 6, 8042 Graz, Austria

Office: +43 (316) 4120-634
seiji.zenitani [at] oeaw.ac.at

Research interests
Magnetic reconnection, astrophysical jets, collisionless shocks, relativistic astrophysics, kinetic plasma instabilities,
particle-in-cell (PIC) simulation, magnetohydrodynamic (MHD) simulation
Academic Training
2006
Ph.D. in space physics, University of Tokyo, Japan“High-energy particle acceleration and magnetic field dissipation in the plasma sheets of celestial
magnetospheres” (advisor: Prof. Masahiro Hoshino)
2001
M.A. in space physics, University of Tokyo, Japan
1999
B.S. in Science, Kyoto University, Japan
Research Experience
2023 – 2029
Austrian Academy of Sciences, Graz, Austria
Academy Scientist, Institut für Weltraumforschung (Space Research Institute) (2023/04 – 2029/03)
2019 – 2023
Kobe University, Kobe, Japan
Associate Professor, Graduate School of Engineering (2019/05 – 2023/03)
Associate Professor, Research Center for Urban Safety and Security (2019/04 – 2023/03)
2017 – 2019
Kyoto University, Uji, Kyoto, Japan
Designated Lecturer, Research Institute for Sustainable Humanosphere (2018/06 – 2019/03)
Researcher, Research Institute for Sustainable Humanosphere (2017/04 – 2019/03)
2011 – 2017
National Astronomical Observatory of Japan, Mitaka, Tokyo, Japan
Research Assistant Professor, NAOJ fellow (2012/04 – 2017/03)
Research Assistant Professor (2011/09 – 2012/03)
2006 – 2011
NASA Goddard Space Flight Center, Greenbelt, MD, USA
Visiting research scientist, University of Maryland Baltimore County (2010/04 – 2011/09)
NASA Postdoctoral Fellow (2007/04 – 2010/04)
Visiting research associate, University of Maryland Baltimore County (2006/11 – 2007/04)
2006 – 2007
Japan Aerospace Exploration Agency, Sagamihara, Japan
Researcher, Institute of Space and Astronautical Science (2006/04 – 2007/03)
Awards2011/11/5 Ohbayashi Early Carrier Scientist Award by Society of Geomagnetism and Earth, Planetary and Space
Sciences (SGEPSS)
2015/2/20 Excellent reviewer award in 2014 by Earth, Planets and Space
2016/4/21 Young Scientists’ Prize by the Minister of Education, Culture, Sports, Science and Technology
2018/5/23 Tanakadate Award by Society of Geomagnetism and Earth, Planetary and Space Sciences
Professional services
Membership Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS),
American Geophysical Union, European Geosciences Union, Astronomical Society of Japan
Review
Astronomy & Astrophysics, Astrophysical Journal, Astrophysical Journal Letters,
Astrophysics and Space Science Library, Earth Planets and Space, Geophysical Research Letters, Journal ofGeophysical Research (Space Physics), Monthly Notices of the Royal Astronomical Society, Nature
Communications, Nature Physics, New Journal of Physics, Physica Scripta, Physical Review E, PhysicalReview Letters, Physics of Plasmas, Plasma and Fusion Research, Plasma Science and Technology, Reviewsof Modern Plasma Physics, Science, Solar Physics, Space Science Reviews, National Science Foundation,
Department of Energy, NASA Earth and Space Science Fellowship, Japan Society for the Promotion of
Science (KAKENHI), Chilean National Science and Technology Commission
EditorEarth Planets and Space (2021/01-2024/12)

Publications
Refereed journals (first author)
1.
S. Zenitani & M. Hoshino, The Generation of Nonthermal Particles in Relativistic Magnetic Reconnection of
Pair Plasmas, Astrophys. J. Lett., 562, L63 (2001)
2.
S. Zenitani & M. Hoshino, Relativistic Particle Acceleration in a Folded Current Sheet, Astrophys. J. Lett.,
618, L111 (2005)
3.
S. Zenitani & M. Hoshino, Three-Dimensional Evolution of a Relativistic Current Sheet: Triggering ofMagnetic Reconnection by the Guide Field, Physical Review Letters, 95, 095001 (2005)
4.
S. Zenitani & M. Hoshino, Particle Acceleration and Magnetic Dissipation in Relativistic Current Sheet ofPair Plasmas, Astrophys. J., 670, 702 (2007)
5.
S. Zenitani & M. Hoshino, The Role of the Guide Field in Relativistic Pair Plasma Reconnection, Astrophys.
J., 677, 530 (2008)
6.
S. Zenitani & M. Hesse, The role of the Weibel instability at the reconnection jet front in relativistic pairplasma reconnection, Physics of Plasmas, 15, 022101 (2008)
7.
S. Zenitani & M. Hesse, Self-regulation of the Reconnecting Current Layer in Relativistic Pair Plasma
Reconnection, Astrophys. J., 684, 1477 (2008)
8.
S. Zenitani, M. Hesse, & A. Klimas, Two-fluid Magnetohydrodynamic Simulations of Relativistic Magnetic
Reconnection, Astrophys. J., 696, 1385 (2009)9.
S. Zenitani, M. Hesse, & A. Klimas, Relativistic Two-fluid Simulations of Guide Field Magnetic Reconnection,
Astrophys. J., 705, 907 (2009)
10. S. Zenitani, M. Hesse, & A. Klimas, Scaling of the Anomalous Boost in Relativistic Jet Boundary Layer,
Astrophys. J., 712, 951 (2010)
11. S. Zenitani, M. Hesse, & A. Klimas, Resistive Magnetohydrodynamic Simulations of Relativistic Magnetic
Reconnection, Astrophys. J. Lett., 716, L214 (2010)12. S. Zenitani & T. Miyoshi, Magnetohydrodynamic structure of a plasmoid in fast reconnection in low beta
plasmas, Physics of Plasmas, 18, 022105 (2011)13. S. Zenitani, M. Hesse, A. Klimas, & M. Kuznetsova, New Measure of the Dissipation Region in Collisionless
Magnetic Reconnection, Physical Review Letters, 106, 195003 (2011)
14. S. Zenitani, M. Hesse, A. Klimas, C. Brack, & M. Kuznetsova, The inner structure of collisionless magnetic
reconnection: The electron-frame dissipation measure and Hall fields, Physics of Plasmas, 18, 122108 (2011)15. S. Zenitani, I. Shinohara, & T. Nagai, Evidence for the dissipation region in magnetotail reconnection,
Geophys. Res. Lett., 39, L11102 (2012)
16. S. Zenitani, I. Shinohara, T. Nagai, & T. Wada, Kinetic aspects of the ion current layer in a reconnection
outflow exhaust, Physics of Plasmas, 20, 092120 (2013)17. S. Zenitani & T. Umeda, Some remarks on the diffusion regions in magnetic reconnection, Physics of Plasmas,
21, 034503 (2014)18. S. Zenitani, Magnetohydrodynamic structure of a plasmoid in fast reconnection in low beta plasmas: Shockshock interactions, Physics of Plasmas, 22, 032114 (2015)19. S. Zenitani, Loading Relativistic Maxwell Distributions in Particle Simulations, Physics of Plasmas, 22,042116 (2015)20. S. Zenitani & T. Nagai, Particle dynamics in the electron current layer in collisionless magnetic reconnection,
Physics of Plasmas, 23, 102102 (2016)21. S. Zenitani, H. Hasegawa, & T. Nagai, Electron dynamics surrounding the X line in asymmetric magnetic
reconnection, Journal of Geophysical Research: Space Physics, 122, 7396 (2017)22. S. Zenitani, Dissipation in relativistic pair-plasma reconnection: revisited, Plasma Physics and Controlled
Fusion, 60, 014028 (2018)23. S. Zenitani & T. Umeda, On the Boris solver in particle-in-cell simulation, Physics of Plasmas, 25, 112110(2018)
24. S. Zenitani & T. N. Kato, Multiple Boris integrators for particle-in-cell simulation, Comput. Phys. Commun.,
247, 106954 (2020)
25. S. Zenitani & T. Miyoshi, Plasmoid-dominated Turbulent Reconnection in a Low-β Plasma, Astrophys. J. Lett.,
894, L7 (2020)
26. S. Zenitani & S. Nakano, Loading a relativistic Kappa distribution in particle simulations, Physics of Plasmas,
29, 113904 (2022)
27. S. Zenitani & S. Nakano, Loading loss-cone distributions in particle simulations, Journal of GeophysicalResearch: Space Physics, 128, e2023JA031983 (2023)
Refereed journals (coauthor)
28. M. Hesse & S. Zenitani, Dissipation in relativistic pair-plasma reconnection, Physics of Plasmas, 14, 112102(2007)
29. A. Klimas, M. Hesse, & S. Zenitani, Particle-in-cell simulation of collisionless reconnection with open outflow
boundaries, Physics of Plasmas, 15, 082102 (2008)

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M. Hesse, S. Zenitani, & A. Klimas, The structure of the electron outflow jet in collisionless magnetic
reconnection, Physics of Plasmas, 15, 112102 (2008)
M. Hesse, S. Zenitani, M. Kuznetsova, & A. Klimas, A simple, analytical model of collisionless reconnection
in a pair plasma, Physics of Plasmas, 16, 102106 (2009)
A. Klimas, M. Hesse, S. Zenitani, & M. Kuznetsova, Particle-in-cell simulation of collisionless driven
reconnection with open boundaries, Physics of Plasmas, 17, 112904 (2010)
M. Hesse, T. Neukirch, K. Schindler, M. Kuznetsova, & S. Zenitani, The Diffusion Region in Collisionless
Magnetic Reconnection, Space Science Reviews, 106, 3 (2011)
M. Hesse, J. Birn, & S. Zenitani, Magnetic reconnection in a compressible MHD plasma, Physics of Plasmas,
18, 042104 (2011)
J. Birn, M. Hesse, & S. Zenitani, Reconnection in compressible plasmas: Extended conversion region, Physics
of Plasmas, 18, 111202 (2011)
A. Klimas, M. Hesse, & S. Zenitani, Particle-in-cell simulation of collisionless undriven reconnection with
open boundaries, Physics of Plasmas, 19, 042901 (2012)
N. Aunai, M. Hesse, S. Zenitani, M. Kuznetsova, C. Black, R. Evans, & R. Smets, Comparison between hybrid
and fully kinetic models of asymmetric magnetic reconnection: coplanar and guide field configurations,Physics of Plasmas, 20, 022902 (2013)
T. Nagai, I. Shinohara, S. Zenitani, R. Nakamura, T. Nakamura, M. Fujimoto, Y. Saito, & T. Mukai, Threedimensional structure of magnetic reconnection in the magnetotail from Geotail observations, Journal ofGeophysical Research, 118, 1667 (2013)
M. Hesse, N. Aunai, S. Zenitani, M. Kuznetsova, & J. Birn, Aspects of collisionless magnetic reconnection inasymmetric systems, Physics of Plasmas, 20, 061210 (2013)
H. Baty, J. Pétri, & S. Zenitani, Explosive reconnection of double tearing modes in relativistic plasmas:
application to the Crab flares, MNRAS Letters, 436, L20 (2013)
T. Nagai, S. Zenitani, I. Shinohara, R. Nakamura, M. Fujimoto, Y. Saito, & T. Mukai, Ion and electron
dynamics in the ion-electron decoupling region of magnetic reconnection with Geotail observations, Journal ofGeophysical Research, 118, 7703 (2013)
J. Pétri, M. Takamoto, H. Baty, & S. Zenitani, Explosive reconnection of the double tearing mode in
relativistic plasmas with application to the Crab flares, Plasma Physics and Controlled Fusion, 57, 014034(2015)
T. Nagai, I. Shinohara, & S. Zenitani, Ion acceleration processes in magnetic reconnection: Geotail
observations in the magnetotail, Journal of Geophysical Research, 120, 1766 (2015)
T. Nagai, I. Shinohara, & S. Zenitani, The dawn-dusk length of the X line in the near-Earth magnetotail:Geotail survey in 1994-2014, Journal of Geophysical Research, 120, 8762 (2015)
M. Hesse, N. Aunai, J. Birn, P. Cassak, R. E. Denton, J. F. Drake, T. Gombosi, M. Hoshino, W. Matthaeus, D.
Sibeck, & S. Zenitani, Theory and Modeling for the Magnetospheric Multiscale Mission, Space Science
Reviews, 199, 577 (2016)
H. Hasegawa, N. Kitamura, Y. Saito, T. Nagai, I. Shinohara, S. Yokota, C. Pollock, B. Giles, J. Dorelli, D.
Gershman, L. Avanov, S. Kreisler, W. Paterson, M. Chandler, V. Coffey, J. Burch, R. Torbert, T. Moore, C. T.
Russell, R. Strangeway, G. Le, M. Oka, T.-D. Phan, B. Lavraud, S. Zenitani, & M. Hesse (25th/26 author),
Decay of mesoscale flux transfer events during quasi-continuous spatially-extended reconnection at themagnetopause, Geophysical Research Letters, 43, 4755 (2016)
T. K. M. Nakamura, S. Eriksson, H. Hasegawa, S. Zenitani, W. Li, K. Genestreti, R. Nakamura, & W.
Daughton, Mass and energy transfer across the Earth's magnetopause caused by the vortex-induced
reconnection, Journal of Geophysical Research, 122, 11505 (2017)
T. Shimizu, K. Kondoh, & S. Zenitani, Numerical MHD study for plasmoid instability in uniform resistivity,
Physics of Plasmas, 24, 112117 (2017)
M. Hosseinpour, Y. Chen, & S. Zenitani, On the effect of parallel shear flow on the plasmoid instability,
Physics of Plasmas, 25, 102117 (2018)
Y. Matsumoto, Y. Asahina, Y. Kudoh, T. Kawashima, J. Matsumoto, H. R. Takahashi, T. Minoshima, S.
Zenitani, T. Miyoshi, & R. Matsumoto, Magnetohydrodynamic Simulation Code CANS+: Assessments andApplications, Publications of the Astronomical Society of Japan, 71, 83 (2019)
W.-L. Teh & S. Zenitani, Thermodynamic Properties of Mirror Structures in the Magnetosheath: MMS
Observations and Double-Polytropic MHD Simulations, Astrophys. J., 885, 22 (2019)
W.-L. Teh & S. Zenitani, Thermodynamics of Dipolarization Fronts of Magnetic Reconnection in Anisotropic
Plasma: MMS Observations and Resistive Double-polytropic MHD Simulations, Astrophys. J., 890, 114 (2020)
W.-L. Teh & S. Zenitani, Two-Dimensional Reconstruction of a Time-Dependent Mirror Structure from
Double-Polytropic MHD simulation, Earth and Space Science, 8, e2020EA001449 (2021)
G. Ueno & S. Zenitani, Relativistic Maxwellian mixture model, Physics of Plasmas, 28, 122106 (2021)
T. K. M. Nakamura, W.-L. Teh, S. Zenitani, T. Umeda, M. Oka, H. Hasegawa, A. Veronig, & R. Nakamura,
Spatial and time scaling of coalescing multiple magnetic islands, Physics of Plasmas, 30, 022902 (2023)

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W.-L. Teh, T. K. M. Nakamura, S. Zenitani, T. Umeda, & R. Nakamura, New aspects of energy conversion inmagnetic island dynamics: particle-in-cell simulation of multiple island coalescence and MMS observations,Astrophys. J, 947, 4 (2023)
S. Totorica, S. Zenitani, M. Machida, S. Matsukiyo, K. Sekiguchi, & A. Bhattacharjee, Exact Calculation of
Nonideal Fields Demonstrates Dominance of Injection in Relativistic Reconnection, Astrophys. J. Lett., 752,
L1 (2023)
S. Usami & S. Zenitani, Three-dimensional crescent-shaped ion velocity distributions created by magnetic
reconnection in the presence of a guide field, Physics of Plasmas, 31, 022102 (2024)
F. Guo, Y.-H. Liu, S. Zenitani, & M. Hoshino, Magnetic Reconnection and Associated Particle Acceleration in
High-energy Astrophysics, Space Science Reviews, 220, 43 (2024)
H. Hasegawa, M. R. Argall, N. Aunai, R. Bandyopadhyay, N. Bessho, I. J. Cohen, R. E. Denton, J. C. Dorelli, J.
Egedal, S. A. Fuselier, P. Garnier, V. Genot, D. B. Graham, K. J. Hwang, Y. V. Khotyaintsev, D. B.
Korovinskiy, B. Lavraud, Q. Lenouvel, T. C. Li, Y.-H. Liu, B. Michotte de Welle, T. K. M. Nakamura, D. S.
Payne, S. M. Petrinec, Y. Qi, A. C. Rager, P. H. Reiff, J. M. Schroeder, J. R. Shuster, M. I. Sitnov, G. K.
Stephens, M. Swisdak, A. M. Tian, R. B. Torbert, K. J. Trattner, & S. Zenitani (36th/36 author), Advanced
methods for analyzing in-situ observations of magnetic reconnection, Space Science Reviews, in press (2024)

Conference proceedings and other articles
61. S. Zenitani & M. Hoshino, A plasma sheet as a source of non-thermal particles --- relativistic magnetic
reconnection and relativistic drift kink instability in e± plasmas, Proceedings of 28th International Cosmic Ray
Conference, p. 2043 (2003)
62. M. Hoshino, S. Zenitani, K. Nagata, & Y. Takagi, Particle Acceleration in Kinetic Plasma Processes,
Proceedings of Energy Budget in the High Energy Universe, p. 108 (2006)
63. S. Zenitani, M. Hesse, & A. Klimas, Fluid and Magnetofluid Modeling of Relativistic Magnetic Reconnection,
AIP Conference Proceedings, 1366, 138 (2011)
64. M. Hesse, N. Aunai, M. Kuznetsova, S. Zenitani, & J. Birn, Magnetic Reconnection in Different
Environments: Similarities and Differences, AGU Geophysical Monograph, 207, 259 (2015)
65. I. Shinohara, M. Fujimoto, T. Nagai, S. Zenitani, & H. Kojima, Low-frequency Waves in the Tail Reconnection
Region, AGU Geophysical Monograph, 216, 181 (2016)
66. M. Yamada, J. Yoo, & S. Zenitani, Energy conversion and inventory of a prototypical magnetic reconnection
layer, Astrophysics and Space Science Library, 427, 143 (2016)
Articles in Japanese language
67. S. Zenitani & H. R. Takahashi, New Trends of Reconnection Research: Relativistic Magnetic Reconnection, J.
Plasma Fusion Res., 89, 845 (2013)
68. S. Usami & S. Zenitani, Problems and Future of Reconnection Research: Problems and Future of Simulation
Studies, J. Plasma Fusion Res., 89, 861 (2013)
69. S. Zenitani, Magnetohydrodynamic (MHD) simulations of magnetic reconnection with a high-resolution
shock-capturing code, Sustainable humanosphere, 13, 27 (2017)70. S. Zenitani & T. N. Kato, Numerical methods for charged particles in relativistic particle-in-cell simulation,
Sustainable humanosphere, 14, 62 (2018)71. S. Zenitani, Recent progress in particle orbit theory of magnetic reconnection, J. Plasma Fusion Res., 97, 47(2021)
72. R. Chen, T. Takeyama, S. Zenitani, S. Tachibana, & A. Iizuka, Depth distribution estimation of overconsolidation ratio by machine learning, Report of Research Center for Urban Safety and Security, 25, 33(2021)
73. T. Dogahara, T. Takeyama, S. Zenitani, S. Tachibana, & A. Iizuka, GPU parallelization of geotechnicalresponse analysis code, Report of Research Center for Urban Safety and Security, 26, 10 (2022)
74. N. Deguchi, S. Zenitani, Y. Nashita, & H. Masutani, Table detection in highway completion drawings using an
object-detection algorithm YOLOv5, Report of Research Center for Urban Safety and Security, 26, 20 (2022)
75. Y. Nashita & S. Zenitani, The study of element extraction in drawing using image recognition technology by
SSD algorithm, Kansai Geo-Symposium 2022, 91-96 (2022)
76. 地球電磁気・地球惑星圏学会「地球電磁気学・地球惑星圏科学の現状と将来(2013,2018,2019,2022,2023)」編集・執筆協力

Invited talks (international)
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Particle acceleration and magnetic dissipation processes in the plasma sheets of relativistic pair plasmas, USJapan Workshop on Magnetic Reconnection (MR2007), Maryland, March 2007
On the current sheet thickness in relativistic pair plasma reconnection, Cambridge Workshop on Magnetic
Reconnection, Maryland, September 2007
On the outflow region of relativistic pair plasma reconnection, Cambridge Workshop on Magnetic
Reconnection, Maryland, September 2007

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The role of the Weibel instability at the reconnection jet front in relativistic pair plasma reconnection, USJapan Workshop on Magnetic Reconnection (MR2008), Okinawa, Japan, March 2008
Current sheet expanding processes in relativistic pair plasma reconnection, Cambridge conference 2008, Bohn,
Germany, August 2008
Relativistic current sheets in electron-positron plasmas, Cracow conference 2008, Krakow, Poland, October
2008
Relativistic two-fluid simulations of pair plasma reconnection, International Cambridge workshop on magnetic
reconnection 2009, Fairbanks, AL, USA, August 2009
Two-fluid simulations of relativistic magnetic reconnection in pair plasmas, US-Japan Workshop on
Reconnection (MR2009), Madison, WI, USA, October 2009
Two-Fluid Simulations of Relativistic Magnetic Reconnection in Electron-Positron Plasmas, Yosemite
Workshop on Magnetic Reconnection, Yosemite, California, USA, February 2010
Resistive Magnetohydrodynamic Simulations of Relativistic Magnetic Reconnection, International CambridgeWorkshop on Magnetic Reconnection 2010, St. Andrews, UK, August 2010
Fluid and Magnetofluid Modeling of Relativistic Magnetic Reconnection, UAH (University of Alabama
Huntsville) Workshop 2010, Nashville, Tennessee, USA, October 2010
Resistive Magnetohydrodynamic Simulations of Relativistic Magnetic Reconnection, US-Japan Workshop on
Magnetic Reconnection (MR2010), Nara, Japan, December 2010
Numerical Simulations of Relativistic Magnetic Reconnection, Magnetic Reconnection in Relativistic Wind
Workshop, SLAC National Accelerator Laboratory, CA, USA, April 2011
The electron-frame dissipation measure in collisionless magnetic reconnection, International CambridgeWorkshop on Magnetic Reconnection 2011, Durham, New Hampshire, USA, August 2011
A new measure of the dissipation region in collisionless magnetic reconnection, Computational Methods inHigh Energy Density Plasmas - Workshop II: Computational Challenges in Magnetized Plasma, Los Angeles,
USA, April 2012
A new measure of the dissipation region in collisionless magnetic reconnection: Theory, simulation, andobservation, US-Japan Workshop on Magnetic Reconnection (MR2012), Princeton, USA, May 2012
Geotail observation of the dissipation region in collisionless magnetic reconnection, AOGS - AGU (WPGM)
Joint Assembly, Singapore, August 2012
Evidence for the dissipation region in magnetotail reconnection, International Cambridge Workshop on
Magnetic Reconnection 2012, Copenhagen, Denmark, August 2012
The structure of the dissipation region in collisionless magnetic reconnection: Theory, Simulation, andObservation, GEOTAIL 20th Anniversary Workshop 2012, Tokyo, November 2012
Identification of the dissipation region in collisionless magnetic reconnection: Theory and Simulations, AGU
Fall meeting 2012, San Francisco, USA, December 2012
Magnetic diffusion and ion nonlinear dynamics in magnetic reconnection, The 11th International School /Symposium for Space Simulations (ISSS-11), National Central University, Taiwan, July 2013
Magnetic diffusion and ion nonlinear dynamics in magnetic reconnection, ISAS Workshop: Magnetospheric
Plasmas, Tokyo, Japan, November 2013
The structure of the diffusion region in collisionless reconnection: Theory, simulation, and observation, Parker
reconnection Workshop, Sao Jose dos Campos, Brazil, March 2014
Magnetic diffusion and ion nonlinear dynamics in magnetic reconnection, US-Japan Workshop on Magnetic
Reconnection (MR2014), Tokyo, Japan, May 2014
The structure of the diffusion region in magnetic reconnection, AOGS 11th Annual Meeting, Sapporo, Japan,
July 2014
A new picture of the central engine of kinetic magnetic reconnection, The 6th East-Asian Numerical
Astrophysicists Meeting, Kyoung-Hee University, Suwon, Korea, September 2014
Numerical Modeling of Relativistic Reconnection: Kinetic, Two-fluid, and MHD Simulations, The Evolving
Blazar Paradigm meeting, Krakow, Poland, April 2015
Particle acceleration in relativistic magnetic reconnection, AOGS 12th Annual Meeting, Singapore, August
2015
High-speed fluid dynamics in magnetic reconnection in a low-beta plasma, Chapman Conference on
Magnetospheric Dynamics, Fairbanks, Alaska, USA, September 2015
Particle dynamics and nongyrotropic distribution functions in collisionless magnetic reconnection,
International GEMSIS and ASINACTR-G2602 Workshop, Nagoya, March 2016
The structure of the diffusion region in collisionless magnetic reconnection: Theory, simulation, andobservation, Dynamical Processes in Space Plasmas, Dead Sea, Israel, April 2016
Dissipation in relativistic pair-plasma reconnection: revisited, Purdue Workshop on Relativistic Plasma
Astrophysics, Purdue, USA, May 2016
Electron particle dynamics in collisionless magnetic reconnection, US-Japan Workshop and School on
Magnetic Reconnection (MR2017), Matsuyama, Japan, Mar 2017

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Advances in numerical modeling of relativistic magnetic reconnection, 2017 European Physical Society Plasma Physics Conference, Belfast, UK, June 2017
Electron particle dynamics in collisionless magnetic reconnection, 7th East-Asia School and Workshop on
Laboratory, Space, and Astrophysical Plasmas (EASW-7), Weihai, China, July 2017
Electron particle dynamics in collisionless magnetic reconnection, IAPSO-IAMAS-IAGA scientific assembly,
Cape Town, South Africa, August 2017
Electron particle dynamics in collisionless magnetic reconnection, AAPPS-DPP2017 1st Asia-PacificConference on Plasma Physics, Chengdu, China, September 2017
Electron dynamics surrounding the X line in asymmetric magnetic reconnection, Fundamental PhysicalProcesses in Solar-Terrestrial Research and Their Relevance to Planetary Physics, Kona, Hawaii, January 2018
Electron Particle Dynamics in Collisionless Magnetic Reconnection, The 13th International School /Symposium for Space Simulations (ISSS-13), UCLA, Los Angeles, September 2018
Electron physics near the X-line in asymmetric magnetic reconnection, 2nd Asia-Pacific Conference on Plasma
Physics (AAPPS-DPP2018), Kanazawa, Japan, November 2018
Reconnecting the dots: Particle dynamics in magnetic reconnection, Max-Planck Princeton Center for Plasma
Physics (MPPC) Workshop 2019, Tokyo, Japan, February 2019
Asymmetric magnetic reconnection at the dayside magnetopause, 9th East-Asia School and Workshop on
Laboratory, Space, and Astrophysical Plasmas, Nagoya, Japan, July 2019
Boris-type particle solvers in particle-in-cell (PIC) simulation, 3rd Asia-Pacific Conference on Plasma Physics(AAPPS-DPP2019), Hefei, China, November 2019
Identification of the Electron Diffusion Region in Collisionless Magnetic Reconnection, AOGS 17th Annual
Meeting, Hongcheon, Korea, June 2020 (meeting was cancelled)
Issues in kinetic modeling of relativistic magnetic reconnection, 3rd Asia-Pacific Conference on Plasma
Physics (AAPPS-DPP2020), Online, October 2020
Particle dynamics in collisionless magnetic reconnection, International Conference on High Energy Density
Sciences 2021 (HEDS2021), Online, April 2021
Particle dynamics and nongyrotropic velocity distribution functions in magnetic reconnection, International
Workshop on Magnetic Reconnection 2021 (2021 年磁场重联国际研讨会), Weihai+Online, China, July 2021
Plasmoid-dominated turbulent reconnection in symmetric and asymmetric systems, US-Japan Workshop on
Magnetic Reconnection (MR2022), Monterey, USA, May 2022
Getting started with MHD simulations, The 14th International School/Symposium for Space Simulations(ISSS-14), Online/Kobe, Japan, September 2022
Hyper Boris integrators for particle-in-cell simulations, NINS International Research Collaboration Center
Astro-fusion Plasma Physics (IRCC-AFP) meeting, Mitaka, Japan, October 2022
Hyper Boris solvers for kinetic plasma simulations, US-Japan Workshop on Magnetic Reconnection (MR2023),
Ise, Japan, June 2023
Some topics on a relativistic Kappa distribution, Electron Kinetic Physics: The Next Frontier in Space andAstrophysical Plasmas, Bern, Switzerland, April 2024
Particle dynamics in collisionless magnetic reconnection, 3rd International Fusion and Plasma Conference(iFPC 2024), Seoul, South Korea, June 2024
Numerical Algorithms for Generating Loss-cone Distributions in Particle Simulation, AOGS 21st Annual
Meeting, Pyongchang, South Korea, June 2024
TBD, The 15th International School/Symposium for Space Simulations (ISSS-15) & the 16th International
Workshop on the Interrelationship between Plasma Experiments in Laboratory and Space (IPELS-16), Munich,Germany, August 2024

Invited talks (domestic/Japanese)
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電子・陽電子プラズマシート中の高エネルギー粒子加速過程、STE シミュレーション研究会、名古屋大学、名古屋、2002/10
相対論磁気リコネクションのシミュレーション研究、STEL 研究会『磁気リコネクション研究の現状と展望 ---素過程から現象まで---』、名古屋大学、名古屋、2011/03
相対論プラズマシミュレーション入門、SGEPSS 波動分科会研究会「一般相対論と MHD プラズマ」
府中町屋倶楽部、武生、福井、2011/12
磁気リコネクションのシミュレーション研究、日本天文学会春季年会、龍谷大学、京都、2012/03
磁気拡散領域のジオテイル衛星観測、STEL/NINS 研究会「磁気リコネクション研究の現状と展望
２」、愛媛大学、松山、2013/02
無衝突磁気リコネクションの散逸領域、宇宙惑星プラズマ物理学研究の最前線 研究集会、東京大学、東京、2013/02
相対論磁気リコネクション研究の現状、ブラックホール磁気圏勉強会、熊本大学、熊本、2014/03

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Our present understanding of the diffusion region in collisionless magnetic reconnection、磁気リコネクショ
ンと太陽プラズマ研究会、京都大学東京オフィス、東京、2014/03
相対論磁気リコネクション、宇宙プラズマ理論研究会、東北大学、仙台、2014/08
磁気圏リコネクション研究の現状と MMS ミッションへの期待、GEMSIS ワークショップ 2014、名古屋大学、名古屋、2014/09
無衝突磁気リコネクションの中心領域問題：理論・ シミュレーション・観測, STE 研究集会「波動粒子相互作用による粒子加速・輸送及び乱流」、名古屋大学、名古屋、2015/03
Particle acceleration in magnetic reconnection、CTA 研究会「高エネルギーガンマ線でみる極限宇宙2015」、宇宙線研究所、柏、2016/01
Particle dynamics in the electron current layer in collisionless magnetic reconnection、磁気リコネクション
研究の最前線と今後の展望、国立天文台、三鷹、2016/03
MMS 衛星の観測成果と磁気圏リコネクションの運動論物理、実験室宇宙・天体プラズマ物理学に関する研究集会、九州大学筑紫キャンパス、福岡、2018/08
無衝突磁気リコネクションにおける粒子運動ダイナミクス、高エネルギー宇宙物理学研究会 2018、
東京大学、東京、2018/09
新しいアプローチの導入による磁気リコネクションのミクロ構造の解明、地球電磁気・地球惑星圏学会 田中館賞受賞記念講演会、名古屋大学、名古屋、2018/11
プラズモイド型乱流磁気リコネクションの MHD シミュレーション研究、プラズマシミュレーターシ
ンポジウム 2021、核融合科学研究所、オンライン、2021/09
宇宙・太陽・天体プラズマにおける粒子加速研究の将来構想、第 150 回地球電磁気・地球惑星圏学会講演会、オンライン、2021/11
乱流磁気リコネクションのシミュレーション研究と GPU 時代の展望、ISEE 研究集会「太陽地球圏環境予測のためのモデル研究の展望」、オンライン、2022/03
磁気リコネクションにおけるプラズマ粒子軌道研究の進展、プラズマ・核融合学会、富山、2022/11

Meetings (Chair/SOC or LOC; in Japan)
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自然科学研究機構「自然科学における階層と全体」シンポジウム、安保ホール、名古屋、
2012/02/10-11 (Chair)
NINS/UT Workshop on Magnetic Reconnection 2012、学術総合センター、東京都千代田区、2012/02/1920 (Chair)
プラズマ研究会、多摩スポーツセンター、川崎市、2013/01/13-15 (LOC)
12th International Workshop on the Interrelationship between Plasma Experiments in Laboratory and Space(IPELS), Hakuba Tokyu Hotel, Nagano, Japan, 2013/07/01-05 (LOC)
第２回 DTA シンポジウム「コンパクト天体の活動性と磁気的性質」、国立天文台、三鷹、
2014/10/27-29 (世話人; co-chair)
理論天文学研究会 2014、休暇村館山、千葉県館山市、2014/11/10-12 (世話人)「宇宙プラズマのフロンティア」研究会、名古屋大学、名古屋、2016/03/02-04 (LOC)
Japan Geoscience Union Meeting 2016, MMS international session, Chiba, Japan, 2016/05/22-26 (Mainconvener)
地球電磁気・地球惑星圏学会 講演会、磁気圏セッションコンビーナ、2016-2019 年度
JpGU-AGU Joint Meeting 2017, MMS international session, Chiba, Japan, 2017/05/20-25 (Convener)
第 142 回地球電磁気・地球惑星圏学会講演会、京都大学、宇治、2017/10/15-19 (LOC)
宇治リコネクションワークショップ 2017、京都大学、宇治、2017/10/20 (世話人)
宇治リコネクションワークショップ 2018、名古屋大学、名古屋、2018/11/28 (世話人)
宇治リコネクションワークショップ 2019、熊本大学、熊本、2019/10/22 (世話人)
DPP と IES を利用するためのデータ変換に関する実践的講習会、理化学研究所、神戸、2019/11/2627 (LOC)
JpGU-AGU Joint Meeting 2020, Plasma theory & simulation international session, Chiba, Japan, 2020/07/1216 (Main convener)
第 148 回地球電磁気・地球惑星圏学会講演会、オンライン、2020/11/01-04 (LOC)
UJI Reconnection Workshop 2020, Online, 2020/11/05 (Chair)
9th VERSIM Workshop, Online, Japan 2020/11/21-25 (LOC)
STE シミュレーション研究会・KDK シンポジウム合同研究会、オンライン、2021/03/29-31 (世話人)
第 150 回地球電磁気・地球惑星圏学会講演会、オンライン、2021/11/01-04 (LOC)
第 152 回地球電磁気・地球惑星圏学会講演会、３学会合同セッションコンビーナ、2022/11/01-04
US-Japan Workshop on Magnetic Reconnection (MR2023), Ise, Japan, 2023/06/26-29 (LOC)
UJI Reconnection Workshop 2024, Online, 2024/06/11-13 (Chair)Public outreach (in Japanese)
1. 「宇宙プラズマ物理入門：磁気リコネクション研究の現状」朝日カルチャーセンター横浜教室、
2015/4/20
2. 「大切なものは目に見えない～地球の裏庭で診る爆発現象」全国同時七夕講演会、筑波技術大学、
2015/8/9
3. 「太陽活動と磁力線」星と宇宙の日、国立天文台、2015/10/24
4. 「宇宙空間の爆発現象：磁気リコネクション」広島大学附属高校 先端科学研修、神戸大学六甲キャン
パス、2022/9/17

Contribution to broader society: Software development
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OpenMHD, a Godunov-type code for ideal/resistive magnetohydrodynamics (MHD) (2010-)
https://sci.nao.ac.jp/MEMBER/zenitani/openmhd-e.html
TeXShop, a TeX editor/previewer for Mac OS X (2002-2007)https://pages.uoregon.edu/koch/texshop/texshop.html
Carbon Emacs Package, a binary distribution of GNU Emacs for Mac OS X (2003-2010)https://sci.nao.ac.jp/MEMBER/zenitani/emacs-e.html
GNU Emacs, a UNIX text editor (2008)https://www.gnu.org/software/emacs/

References
Prof. Masahiro Hoshino
Dept. of Earth and Planetary Science
University of Tokyo
7-3-1 Hongo, Bunkyo, Tokyo, 113-0033 Japan
Phone: +81-3-5841-4584, Fax: +81-3-5841-8321
Email: hoshino [at] eps.s.u-tokyo.ac.jp

Dr. Michael Hesse
Director of ScienceNASA Ames Research Center
Moffett Field, CA 94035-1000, USA
Email: michael.hesse [at] nasa.gov

Prof. Iku Shinohara
Institute of Space and Astronautical Science
3-1-1 Yoshinodai, Sagamihara, 229-8510 Japan
Phone: +81-50-3362-3279
Email: iku [at] stp.isas.jaxa.jp

Prof. Hantao Ji
Princeton Plasma Physics Laboratory
Princeton University
Rm L222, PO Box 451, Princeton, NJ 08543, USA
Phone: +1-609-243-2162
Email: hji [at] pppl.gov

Prof. Yoshiharu Omura
Research Institute for Sustainable HumanosphereKyoto University
Gokasho, Uji, Kyoto, 611-0011 Japan
Phone: +81-744-38-3811
Email: omura [at] rish.kyoto-u.ac.jp

Prof. Atsushi Iizuka
Fax: +81-774-31-8463
Research Center for Urban Security& Safety, andGraduate School of Engineering, Kobe University
1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
Phone: +81-78-803-6029, Fax: +81-78-803-6602
Email: iizuka [at] kobe-u.ac.jp