Relativistic Two-fluid Plasma Simulation Model and Application to Pulsar Winds

2016 Fiscal Year Final Research Report

• Project/Area Number: 25800101
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Astronomy
• Research Institution: The University of Tokyo
• Principal Investigator: Amano Takanobu 東京大学, 大学院理学系研究科(理学部), 准教授 (00514853)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: プラズマ / 相対論 / 数値シミュレーション

Outline of Final Research Achievements

The relativistic two-fluid plasma simulation model has been investigated as a possible alternative to relativistic magnetohydrodynamics (RMHD) equations. The model deals with electron and ion fluids separately and is thus a superset of the RMHD model. A new numerical scheme has been developed that exactly satisfies the mathematical constraints in the basic equation, which leads to better numerical stability. We have confirmed that the new model has indeed advantages over the RMHD, both in terms of physics and numerics.

Free Research Field

宇宙空間物理学