Zobrazeno 1 - 10
of 402
pro vyhledávání: '"Nishikawa, Ken"'
Autor:
Ardaneh, Kazem, Nishikawa, Ken-Ichi, Giust, Remo, Morel, Benoit, Charpin, Pierre-Jean, Couairon, Arnaud, Bonnaud, Guy, Courvoisier, Francois
Electromagnetic radiation within the terahertz (THz) frequency range is of great interest for applications in remote sensing and time-domain spectroscopy. The laser-induced plasmas are promising mediums for generating THz radiation. It has been recen
Externí odkaz:
http://arxiv.org/abs/2301.04458
Publikováno v:
The Astrophysical Journal, 943:164 (19pp), 2023 February 1
We examine the temporary evolution of axisymmetric magnetospheres around rapidly rotating black holes (BHs), by applying our two-dimensional particle-in-cell simulation code. Assuming a stellar-mass BH, we find that the created pairs fail to screen t
Externí odkaz:
http://arxiv.org/abs/2209.13140
Autor:
Kato, Tamon, Minamisawa, Masatoshi, Miura, Takashi, Kanai, Masafumi, Oyama, Yushi, Hashizume, Naoto, Yokota, Daisuke, Taki, Minami, Senda, Keisuke, Nishikawa, Ken, Wakabayashi, Tadamasa, Fujimori, Koki, Karube, Kenichi, Sakai, Takahiro, Inoue, Minami, Yoda, Hidetsugu, Sunohara, Daisuke, Okina, Yoshiteru, Nomi, Hidetomo, Kanzaki, Yusuke, Machida, Keisuke, Kashiwagi, Daisuke, Ueki, Yasushi, Saigusa, Tatsuya, Ebisawa, Soichiro, Okada, Ayako, Motoki, Hirohiko, Kuwahara, Koichiro
Publikováno v:
In Journal of Cardiology December 2024 84(6):379-387
We investigate the temporal evolution of an axisymmetric magnetosphere around a rapidly rotating, stellar-mass black hole, applying a two-dimensional particle-in-cell simulation scheme. Adopting a homogeneous pair production, and assuming that the ma
Externí odkaz:
http://arxiv.org/abs/2012.07229
Autor:
Nishikawa, Ken-Ichi, Mizuno, Yosuke, Gomez, Jose L., Dutan, Ioana, Meli, Athina, White, Charley, Niemiec, Jacek, Kobzar, Oleh, Pohl, Martin, Pe'er, Asaf, Frederiksen, Jacob Trier, Nordlund, AAke, Sol, Helene, Hardee, Philip E., Hartmann, Dieter H.
Publikováno v:
Galaxies, 5, 58, 2017
In this study we investigate jet interaction at a microscopic level in a cosmological environment, which responds to a key open question in the study of relativistic jets. Using small simulation systems during prior research, we initially studied the
Externí odkaz:
http://arxiv.org/abs/1708.07740
Autor:
Nishikawa, Ken, Kinjo, Akira R.
Publikováno v:
Biophysical Reviews Vol. 9, pp. 73-77 (2017)
The epigenome, i.e. the whole of chromatin modifications, is transferred from mother to daughter cells during cell differentiation. When de novo chromatin modifications (establishment or erasure of, respectively, new or pre-existing DNA methylations
Externí odkaz:
http://arxiv.org/abs/1703.02667
Autor:
Duţan, Ioana, Nishikawa, Ken-Ichi, Mizuno, Yosuke, Niemiec, Jacek, Kobzar, Oleh, Pohl, Martin, Gómez, Jose L., Pe'er, Asaf, Frederiksen, Jacob T., Nordlund, Åke, Meli, Athina, Sol, Helene, Hardee, Philip E., Hartmann, Dieter H.
We study the interaction of relativistic jets with their environment, using 3-dimensional relativistic particle-in-cell simulations for two cases of jet composition: (i) electron-proton ($e^{-}-p^{+}$) and (ii) electron-positron ($e^{\pm}$) plasmas c
Externí odkaz:
http://arxiv.org/abs/1611.02882
Autor:
Nishikawa, Ken-Ichi, Mizuno, Yosuke, Niemiec, Jacek, Kobzar, Oleh, Pohl, Martin, Gomez, Jose L., Dutan, Ioana, Pe'er, Asaf, Frederiksen, Jacob Trier, Nordlund, AAke, Meli, Athina, Sol, Helene, Hardee, Philip E., Hartmann, Dieter. H.
Publikováno v:
Galaxies 2016, 4, 38
In the study of relativistic jets one of the key open questions is their interaction with the environment on the microscopic level. Here, we study the initial evolution of both electron$-$proton ($e^{-}-p^{+}$) and electron$-$positron ($e^{\pm}$) rel
Externí odkaz:
http://arxiv.org/abs/1609.09363
The course of non-thermal electron ejection in relativistic unmagnetized electron-ion shocks is investigated by performing self-consistent particle-in-cell simulations. The shocks are excited through the injection of relativistic jet into ambient pla
Externí odkaz:
http://arxiv.org/abs/1604.04388
For parameters that are applicable to the conditions at young supernova remnants, we present results of 2D3V particle-in-cell simulations of a non-relativistic plasma shock with a large-scale perpendicular magnetic field inclined at 45-deg angle to t
Externí odkaz:
http://arxiv.org/abs/1602.05064