Comoving Acceleration by Relativistic Poynting Flux Edison Liang Rice University
Particle Acceleration by Relativistic Expansion of Magnetic Arcades
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2nd East-Asia Numerical Astrophysics Meeting, KASI Daejeon KOREA Particle Acceleration by Relativistic Expansion of Magnetic Arcades H. Takahashi, E. Asano, R. Matsumoto Chiba Unv. Japan Asano et al. (P12) shock current sheet
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H. Takahashi, E. Asano, R. Matsumoto Chiba Unv. Japan. Particle Acceleration by Relativistic Expansion of Magnetic Arcades. shock. current sheet. Asano et al. (P12). Simulation Model of Particle Accelerations. 2-dim. Paritcle-In-Cell (PIC) simulation - PowerPoint PPT Presentation
Transcript of Particle Acceleration by Relativistic Expansion of Magnetic Arcades
2nd East-Asia Numerical Astrophysics Meeting, KASI Daejeon KOREA
Particle Acceleration by Relativistic Expansion of
Magnetic ArcadesH. Takahashi, E. Asano, R. Matsumoto
Chiba Unv. Japan
Asano et al. (P12)
shock
current sheet
2nd East-Asia Numerical Astrophysics Meeting, KASI Daejeon KOREA
Simulation Model of Particle Accelerations
2-dim. Paritcle-In-Cell (PIC) simulationMikic Model extended into relativistic plasma(NX,NY)=(200,1600)
Assumptionelecron-positron plasmacollisionlessPlasma density is slightly
larger than Goldreich-Julian density
Bz : toroidal componentsBx,By: poloidal components
Initial Model constructed by Mikic(‘88)
2nd East-Asia Numerical Astrophysics Meeting, KASI Daejeon KOREA
2.5-dimensional PIC Simulation: Result
color: density
line: field line
color: Bz
line: field line
color: Bz
line: field line
Tg=237.5Tg=90.0
ExB drift motion leads to charge deficiency in the arcades.
Magnetic reconnections take place inside the expanding arcades.
