Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Matsukiyo, S."'
Autor:
Sakai, K., Huang, T. Y., Khasanah, N., Bolouki, N., Chu, H. H., Moritaka, T., Sakawa, Y., Sano, T., Tomita, K., Matsukiyo, S., Morita, T., Takabe, H., Yamazaki, R., Yasuhara, R., Habara, H., Kuramitsu, Y.
Publikováno v:
High Energy Density Phys. 52, 101132 (2024)
We investigate the competition of magnetic reconnections in self-generated and external magnetic fields in laser-produced plasmas. The temporal evolution of plasma structures measured with self-emission imaging shows the vertical expansions and horiz
Externí odkaz:
http://arxiv.org/abs/2407.07075
Publikováno v:
Phys. Plasmas 30, 012105 (2023)
We theoretically and numerically investigate the ion-acoustic features of collective Thomson scattering (CTS) in two-stream plasmas. When the electron distribution functions of two (stationary and moving) components overlap with each other at the pha
Externí odkaz:
http://arxiv.org/abs/2210.11086
Autor:
Sakai, K., Isayama, S., Bolouki, N., Habibi, M. S., Liu, Y. L., Hsieh, Y. H., Chu, H. H., Wang, J., Chen, S. H., Morita, T., Tomita, K., Yamazaki, R., Sakawa, Y., Matsukiyo, S., Kuramitsu, Y.
Publikováno v:
Phys. Plasmas 27, 103104 (2020)
We investigate collective Thomson scattering (CTS) in two-stream non-equilibrium plasmas analytically, numerically and experimentally. In laboratory astrophysics, CTS is a unique tool to obtain local plasma diagnostics. While the standard CTS theory
Externí odkaz:
http://arxiv.org/abs/2210.11382
Autor:
Morita, T., Matsukiyo, S., Isayama, S., Kojima, T., Matsuo, S., Pan, Y., Yamazaki, R., Tanaka, S. J., Aihara, K., Sato, Y., Shiota, J., Tomita, K., Takezaki, T., Kuramitsu, Y., Sakai, K., Egashira, S., Ishihara, H., Kuramoto, O., Matsumoto, Y., Maeda, K., Sakawa, Y.
Magnetic reconnection in laser-produced magnetized plasma is investigated by using optical diagnostics. The magnetic field is generated via Biermann battery effect, and the inversely directed magnetic field lines interact with each other. It is shown
Externí odkaz:
http://arxiv.org/abs/2209.11975
Autor:
Amano, T., Matsumoto, Y., Bohdan, A., Kobzar, O., Matsukiyo, S., Oka, M., Niemiec, J., Pohl, M., Hoshino, M.
Shock waves propagating in collisionless heliospheric and astrophysical plasmas have been studied extensively over the decades. One prime motivation is to understand the nonthermal particle acceleration at shocks. Although the theory of diffusive sho
Externí odkaz:
http://arxiv.org/abs/2209.03521
Autor:
Matsukiyo, S., Yamazaki, R., Morita, T., Tomita, K., Kuramitsu, Y., Tanaka, S. J., Takezaki, T., Isayama, S., Higuchi, T., Murakami, H., Horie, Y., Katsuki, N., Hatsuyama, R., Edamoto, M., Nishioka, H., Takagi, M., Kojima, T., Tomita, S., Ishizaka, N., Kakuchi, S., Sei, S., Sugiyama, K., Aihara, K., Kambayashi, S., Ota, M., Egashira, S., Izumi, T., Minami, T., Nakagawa, Y., Sakai, K., Iwamoto, M., Ozaki, N., Sakawa, Y.
A developing supercritical collisionless shock propagating in a homogeneously magnetized plasma of ambient gas origin having higher uniformity than the previous experiments is formed by using high-power laser experiment. The ambient plasma is not con
Externí odkaz:
http://arxiv.org/abs/2207.12586
Counterpropagating Alfv\'en waves are ubiquitously observed in many astrophysical environments, such as a star surface and a planetary foreshock. We discuss an efficient particle acceleration mechanism in two counterpropagating circularly polarized A
Externí odkaz:
http://arxiv.org/abs/2204.06707
Autor:
Yamazaki, Ryo, Matsukiyo, S., Morita, T., Tanaka, S. J., Umeda, T., Aihara, K., Edamoto, M., Egashira, S., Hatsuyama, R., Higuchi, T., Hihara, T., Horie, Y., Hoshino, M., Ishii, A., Ishizaka, N., Itadani, Y., Izumi, T., Kambayashi, S., Kakuchi, S., Katsuki, N., Kawamura, R., Kawamura, Y., Kisaka, S., Kojima, T., Konuma, A., Kumar, R., Minami, T., Miyata, I., Moritaka, T., Murakami, Y., Nagashima, K., Nakagawa, Y., Nishimoto, T., Nishioka, Y., Ohira, Y., Ohnishi, N., Ota, M., Ozaki, N., Sano, T., Sakai, K., Sei, S., Shiota, J., Shoji, Y., Sugiyama, K., Suzuki, D., Takagi, M., Toda, H., Tomita, S., Tomiya, S., Yoneda, H., Takezaki, T., Tomita, K., Kuramitsu, Y., Sakawa, Y.
Publikováno v:
Phys. Rev. E, 105, 025203 (2022)
We present a new experimental method to generate quasi-perpendicular supercritical magnetized collisionless shocks. In our experiment, ambient nitrogen (N) plasma is at rest and well-magnetized, and it has uniform mass density. The plasma is pushed b
Externí odkaz:
http://arxiv.org/abs/2201.07976
Publikováno v:
The Astrophysical Journal Letters, Volume 887, Issue 1, article id. L2, 4 pp. (2019)
A generation mechanism of super Alfv\'{e}nic (SPA) waves in multi-ion species plasma is proposed and the associated heavy ion acceleration process is discussed. The SPA waves are thought to play important roles in particle acceleration since they hav
Externí odkaz:
http://arxiv.org/abs/2001.02538
A shock tube problem is solved numerically by using one-dimensional full particle-in-cell simulations under the condition that a relatively tenuous and weakly magnetized plasma is continuously pushed by a relatively dense and strongly magnetized plas
Externí odkaz:
http://arxiv.org/abs/2001.02170