Search Results - "Matsukiyo, Shuichi"

Injection Process of Pickup Ion Acceleration at an Oblique Heliospheric Termination Shock by Matsukiyo, Shuichi, Matsumoto, Yosuke

“…The injection process of pickup ion acceleration at a heliospheric termination shock is investigated. Using two-dimensional fully kinetic particle-in-cell…”
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Electron Acceleration at Rippled Low-mach-number Shocks in High-beta Collisionless Cosmic Plasmas by Kobzar, Oleh, Niemiec, Jacek, Amano, Takanobu, Hoshino, Masahiro, Matsukiyo, Shuichi, Matsumoto, Yosuke, Pohl, Martin

“…Using large-scale fully kinetic two-dimensional particle-in-cell simulations, we investigate the effects of shock rippling on electron acceleration at…”
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Particle Acceleration by Pickup Process Upstream of Relativistic Shocks by Iwamoto, Masanori, Amano, Takanobu, Matsumoto, Yosuke, Matsukiyo, Shuichi, Hoshino, Masahiro

“…Particle acceleration at magnetized purely perpendicular relativistic shocks in electron–ion plasmas is studied by means of two-dimensional particle-in-cell…”
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Seasonal variation and geomagnetic storm index effects on the proton flux response in the South Atlantic Anomaly by test particle simulations by Girgis, Kirolosse M., Hada, Tohru, Matsukiyo, Shuichi

“…In order to estimate the proton flux variations occurring in the South Atlantic Anomaly (SAA) caused by the geodipole tilting angle and the Dst index…”
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Mildly relativistic magnetized shocks in electron–ion plasmas – II. Particle acceleration and heating by Ligorini, Arianna, Niemiec, Jacek, Kobzar, Oleh, Iwamoto, Masanori, Bohdan, Artem, Pohl, Martin, Matsumoto, Yosuke, Amano, Takanobu, Matsukiyo, Shuichi, Hoshino, Masahiro

“…ABSTRACT Particle acceleration and heating at mildly relativistic magnetized shocks in electron–ion plasma are investigated with unprecedentedly…”
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Simulations of pickup ion mediated quasi-perpendicular shocks: Implications for the heliospheric termination shock by Matsukiyo, Shuichi, Scholer, Manfred

“…The microstructure of the heliospheric termination shock and the accompanied local acceleration processes of both ions and electrons are investigated by…”
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Solar wind parameter and seasonal variation effects on the South Atlantic Anomaly using Tsyganenko Models by Girgis, Kirolosse M., Hada, Tohru, Matsukiyo, Shuichi

“…We studied the space weather effects on the South Atlantic Anomaly (SAA) magnetic response using Tsyganenko models. For the physical parameters characterizing…”
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Exact Calculation of Nonideal Fields Demonstrates Their Dominance of Injection in Relativistic Reconnection by Totorica, Samuel R., Zenitani, Seiji, Matsukiyo, Shuichi, Machida, Mami, Sekiguchi, Kazuhiro, Bhattacharjee, Amitava

“…Magnetic reconnection is an important source of energetic particles in systems ranging from astrophysics to the laboratory. The large separation of…”
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Effect of Upstream ULF Waves on the Energetic Ion Diffusion at the Earth's Foreshock. I. Theory and Simulation by Otsuka, Fumiko, Matsukiyo, Shuichi, Kis, Arpad, Nakanishi, Kento, Hada, Tohru

“…Field-aligned diffusion of energetic ions in the Earth's foreshock is investigated by using the quasi-linear theory (QLT) and test particle simulation…”
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Mildly relativistic magnetized shocks in electron–ion plasmas – I. Electromagnetic shock structure by Ligorini, Arianna, Niemiec, Jacek, Kobzar, Oleh, Iwamoto, Masanori, Bohdan, Artem, Pohl, Martin, Matsumoto, Yosuke, Amano, Takanobu, Matsukiyo, Shuichi, Esaki, Yodai, Hoshino, Masahiro

“…ABSTRACT Mildly relativistic shocks in magnetized electron–ion plasmas are investigated with 2D kinetic particle-in-cell simulations of unprecedentedly high…”
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Inner radiation belt simulations of the proton flux response in the South Atlantic Anomaly during the Geomagnetic Storm of 15 May 2005 by Girgis, Kirolosse M., Hada, Tohru, Matsukiyo, Shuichi, Yoshikawa, Akimasa

“…A test particle simulation code was developed to simulate the inner proton belt response during the intense geomagnetic storm of 15 May 2005. The guiding…”
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Microstructure of the heliospheric termination shock: Full particle electrodynamic simulations by Matsukiyo, Shuichi, Scholer, Manfred

“…A particle‐in‐cell code is used to examine kinetic properties of pickup ions at the heliospheric termination shock. The code treats the pickup ions…”
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Dynamics of energetic electrons in nonstationary quasi-perpendicular shocks by Matsukiyo, Shuichi, Scholer, Manfred

“…A one‐dimensional full particle‐in‐cell (PIC) code is utilized to investigate energetic electron bursts produced at a nonstationary quasi‐perpendicular shock…”
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Mach number and plasma beta dependence of the ion temperature perpendicular to the external magnetic field in the transition region of perpendicular collisionless shocks by Yamazaki, Ryo, Shinoda, Ayato, Umeda, Takayuki, Matsukiyo, Shuichi

“…Ion temperature anisotropy is a common feature for (quasi-)perpendicular collisionless shocks. By using two-dimensional full particle simulations, it is shown…”
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Modified two-stream instability at perpendicular collisionless shocks: Full particle simulations by Umeda, Takayuki, Kidani, Yoshitaka, Matsukiyo, Shuichi, Yamazaki, Ryo

“…A full particle simulation study is carried out for studying microinstabilities generated in self‐consistently excited perpendicular collisionless shocks. The…”
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Diffusive shock acceleration of cosmic rays from two stationary shocks by Nakanotani, Masaru, Hada, Tohru, Matsukiyo, Shuichi

“…Diffusive shock acceleration (Fermi acceleration) of cosmic rays in a system containing two shock waves is investigated using test particle simulations and…”
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Cyclotron Resonant Interactions in Cosmic Particle Accelerators by Terasawa, Toshio, Matsukiyo, Shuichi

“…A review is given for cyclotron resonant interactions in space plasmas. After giving a simple formulation for the test particle approach, illustrative examples…”
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Modified two-stream instability in the foot of high Mach number quasi-perpendicular shocks by Matsukiyo, Shuichi, Scholer, Manfred

“…The modified two‐stream instability in the foot of supercritical quasi‐perpendicular shock wave is investigated. A linear analysis shows that the instability…”
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Quasi-perpendicular shocks: Length scale of the cross-shock potential, shock reformation, and implication for shock surfing by Scholer, Manfred, Shinohara, Iku, Matsukiyo, Shuichi

“…One‐dimensional (1‐D) full particle simulations of almost perpendicular supercritical collisionless shocks are presented. The ratio of electron plasma…”
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On the reformation at quasi- and exactly perpendicular shocks: Full particle-in-cell simulations by Umeda, Takayuki, Kidani, Yoshitaka, Yamao, Masahiro, Matsukiyo, Shuichi, Yamazaki, Ryo

“…A full particle‐in‐cell (PIC) simulation study is carried out on the reformation at quasi‐ and exactly perpendicular collisionless shocks with a relatively low…”
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