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

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


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 languageEnglish
Article number012908
JournalPhysics of Plasmas
Issue number1
Publication statusPublished - 2011 Jan

ASJC Scopus subject areas

  • Condensed Matter Physics


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