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| Titel |
Adaptation of the de Hoffmann–Teller frame for quasi-perpendicular collisionless shocks |
| VerfasserIn |
H. Comişel, Y. Narita, U. Motschmann |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 33, no. 3 ; Nr. 33, no. 3 (2015-03-17), S.345-350 |
| Datensatznummer |
250121177
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| Publikation (Nr.) |
 copernicus.org/angeo-33-345-2015.pdf |
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| Zusammenfassung |
| The concept of the de Hoffmann–Teller frame is revisited for a high
Mach-number quasi-perpendicular collisionless shock wave. Particle-in-cell
simulation shows that the local magnetic field oscillations in the shock
layer introduce a residual motional electric field in the de Hoffmann–Teller
frame, which is misleading in that one may interpret that electrons were not
accelerated but decelerated in the shock layer. We propose the concept of the
adaptive de Hoffmann–Teller (AHT) frame in which the residual convective
field is canceled by modulating the sliding velocity of the de
Hoffmann–Teller frame. The electrostatic potential evaluated by Liouville mapping supports the potential profile obtained by electric field
in this adaptive frame, offering a wide variety of applications in shock
wave studies. |
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