Magnetic Field Amplification by the Weibel Instability at Planetary and Astrophysical Shocks with High Mach Number
Collisionless shocks are ubiquitous in the Universe and often associated with a strong magnetic field. Here, we use large-scale particle-in-cell simulations of nonrelativistic perpendicular shocks in the high-Mach-number regime to study the amplification of the magnetic field within shocks. The magnetic field is amplified at the shock transition due to the ion-ion two-stream Weibel instability. The normalized magnetic field strength strongly correlates with the Alfvénic Mach number. Mock spacecraft measurements derived from particle-in-cell simulations are fully consistent with those taken in situ at Saturn's bow shock by the Cassini spacecraft.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:126 |
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| Enthalten in: |
Physical review letters - 126(2021), 9 vom: 05. März, Seite 095101 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Bohdan, Artem [VerfasserIn] |
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Date Revised 22.03.2021 published: Print Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1103/PhysRevLett.126.095101 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM323065155 |
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| 100 | 1 | |a Bohdan, Artem |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Magnetic Field Amplification by the Weibel Instability at Planetary and Astrophysical Shocks with High Mach Number |
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| 500 | |a Date Revised 22.03.2021 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Collisionless shocks are ubiquitous in the Universe and often associated with a strong magnetic field. Here, we use large-scale particle-in-cell simulations of nonrelativistic perpendicular shocks in the high-Mach-number regime to study the amplification of the magnetic field within shocks. The magnetic field is amplified at the shock transition due to the ion-ion two-stream Weibel instability. The normalized magnetic field strength strongly correlates with the Alfvénic Mach number. Mock spacecraft measurements derived from particle-in-cell simulations are fully consistent with those taken in situ at Saturn's bow shock by the Cassini spacecraft | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Pohl, Martin |e verfasserin |4 aut | |
| 700 | 1 | |a Niemiec, Jacek |e verfasserin |4 aut | |
| 700 | 1 | |a Morris, Paul J |e verfasserin |4 aut | |
| 700 | 1 | |a Matsumoto, Yosuke |e verfasserin |4 aut | |
| 700 | 1 | |a Amano, Takanobu |e verfasserin |4 aut | |
| 700 | 1 | |a Hoshino, Masahiro |e verfasserin |4 aut | |
| 700 | 1 | |a Sulaiman, Ali |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Physical review letters |d 1985 |g 126(2021), 9 vom: 05. März, Seite 095101 |w (DE-627)NLM099656183 |x 1079-7114 |7 nnns |
| 773 | 1 | 8 | |g volume:126 |g year:2021 |g number:9 |g day:05 |g month:03 |g pages:095101 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1103/PhysRevLett.126.095101 |3 Volltext |
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