Vlasov simulation of the interaction between the solar wind and a dielectric body

Takayuki Umeda; Tetsuya Kimura; Kentaro Togano; Keiichiro Fukazawa; Yosuke Matsumoto; Takahiro Miyoshi; Naoki Terada; Takuma K.M. Nakamura; Tatsuki Ogino

doi:10.1063/1.3551510

Vlasov simulation of the interaction between the solar wind and a dielectric body

Takayuki Umeda, Tetsuya Kimura, Kentaro Togano, Keiichiro Fukazawa, Yosuke Matsumoto, Takahiro Miyoshi, Naoki Terada, Takuma K.M. Nakamura, Tatsuki Ogino

SCI - Geophysics

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The global structure of wake field behind an unmagnetized object in the solar wind is studied by means of a 2.5-dimensional full-electromagnetic Vlasov simulation. The interaction of a plasma flow with an unmagnetized object is quite different from that with a magnetized object such as the Earth. Due to the absence of the global magnetic field, the unmagnetized object absorbs plasma particles that reach the surface, generating a plasma cavity called "wake" on the antisolar side of the object. For numerical simulations of electromagnetic structures around the wake, it is important to include the charging effect in global-scale simulations. The present study is one of the first attempts to study the formation of wake fields via a full-kinetic Vlasov simulation. It has been confirmed that the spatial structures of wake fields depend on the direction of interplanetary magnetic fields as well as the distance from the body.

Original language	English
Article number	012908
Journal	Physics of Plasmas
Volume	18
Issue number	1
DOIs	https://doi.org/10.1063/1.3551510
Publication status	Published - 2011 Jan

ASJC Scopus subject areas

Condensed Matter Physics

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Vlasov simulation of the interaction between the solar wind and a dielectric body. / Umeda, Takayuki; Kimura, Tetsuya; Togano, Kentaro; Fukazawa, Keiichiro; Matsumoto, Yosuke; Miyoshi, Takahiro; Terada, Naoki; Nakamura, Takuma K.M.; Ogino, Tatsuki.

In: Physics of Plasmas, Vol. 18, No. 1, 012908, 01.2011.

Research output: Contribution to journal › Article › peer-review

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title = "Vlasov simulation of the interaction between the solar wind and a dielectric body",

abstract = "The global structure of wake field behind an unmagnetized object in the solar wind is studied by means of a 2.5-dimensional full-electromagnetic Vlasov simulation. The interaction of a plasma flow with an unmagnetized object is quite different from that with a magnetized object such as the Earth. Due to the absence of the global magnetic field, the unmagnetized object absorbs plasma particles that reach the surface, generating a plasma cavity called {"}wake{"} on the antisolar side of the object. For numerical simulations of electromagnetic structures around the wake, it is important to include the charging effect in global-scale simulations. The present study is one of the first attempts to study the formation of wake fields via a full-kinetic Vlasov simulation. It has been confirmed that the spatial structures of wake fields depend on the direction of interplanetary magnetic fields as well as the distance from the body.",

author = "Takayuki Umeda and Tetsuya Kimura and Kentaro Togano and Keiichiro Fukazawa and Yosuke Matsumoto and Takahiro Miyoshi and Naoki Terada and Nakamura, {Takuma K.M.} and Tatsuki Ogino",

note = "Funding Information: This work was supported by MEXT/JSPS under Grant-in-Aid for Young Scientists (B) No. 21740352. The computer simulations were performed on the Fujitsu FX1 and HX600 supercomputer systems at Information Technology Center, Nagoya University and the Hitachi HA8000 (T2K) supercomputer system at Information Technology Center, the University of Tokyo. The computational resources were provided by Solar-Terrestrial Environment Laboratory, Nagoya University as a computational joint research program and by Joint Usage/Research Center for Interdisciplinary Large-Scale Information Infrastructures as a JHPCN program.",

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AU - Nakamura, Takuma K.M.

AU - Ogino, Tatsuki

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PY - 2011/1

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N2 - The global structure of wake field behind an unmagnetized object in the solar wind is studied by means of a 2.5-dimensional full-electromagnetic Vlasov simulation. The interaction of a plasma flow with an unmagnetized object is quite different from that with a magnetized object such as the Earth. Due to the absence of the global magnetic field, the unmagnetized object absorbs plasma particles that reach the surface, generating a plasma cavity called "wake" on the antisolar side of the object. For numerical simulations of electromagnetic structures around the wake, it is important to include the charging effect in global-scale simulations. The present study is one of the first attempts to study the formation of wake fields via a full-kinetic Vlasov simulation. It has been confirmed that the spatial structures of wake fields depend on the direction of interplanetary magnetic fields as well as the distance from the body.

AB - The global structure of wake field behind an unmagnetized object in the solar wind is studied by means of a 2.5-dimensional full-electromagnetic Vlasov simulation. The interaction of a plasma flow with an unmagnetized object is quite different from that with a magnetized object such as the Earth. Due to the absence of the global magnetic field, the unmagnetized object absorbs plasma particles that reach the surface, generating a plasma cavity called "wake" on the antisolar side of the object. For numerical simulations of electromagnetic structures around the wake, it is important to include the charging effect in global-scale simulations. The present study is one of the first attempts to study the formation of wake fields via a full-kinetic Vlasov simulation. It has been confirmed that the spatial structures of wake fields depend on the direction of interplanetary magnetic fields as well as the distance from the body.

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Vlasov simulation of the interaction between the solar wind and a dielectric body

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