Interaction between electrostatic collisionless shocks generates strong magnetic fields
| Autor: | E Boella, K Schoeffler, N Shukla, M E Innocenti, G Lapenta, R Fonseca, L O Silva |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Science & Technology
PLASMA Electrostatic collisionless shocks Physics Physics Multidisciplinary INSTABILITY General Physics and Astronomy ACCELERATION DRIVEN WEIBEL Ciências Naturais::Ciências Físicas [Domínio/Área Científica] Weibel instability FILAMENTATION Collisionless shock interaction DENSITY Physical Sciences PROTONS ABSORPTION Particle-in-cell simulations |
| Zdroj: | New Journal of Physics |
| Popis: | The head-on collision between electrostatic shocks is studied via multi-dimensional particle-in-cell simulations. A strong magnetic field develops after the interaction, which causes the shock velocities to drop significantly. This transverse magnetic field is generated by the Weibel instability, which is driven by pressure anisotropies due to longitudinal electron heating while the shocks approach each other. The possibility to explore the physics underpinning the shock collision in the laboratory with current laser facilities is discussed. |
| Databáze: | OpenAIRE |
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