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| Titel |
Whistler-mode Waves and Non-Adiabatic Electrons in Plasma Jet Braking |
| VerfasserIn |
Yuri Khotyaintsev, Christopher Cully, Andris Vaivads, Mats André, Christopher J. Owen |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250054657
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| Zusammenfassung |
| We report in situ observations by the Cluster spacecraft in the Earth's magnetotail of wave particle interactions
in the magnetic flux pile-up region created by a magnetic reconnection outflow jet. Two distinct regions of wave activity are identified: lower-hybrid drift waves at the front edge and whistler-mode waves inside the pile-up region. The whistler-mode waves are locally generated by the electron temperature anisotropy, and provide evidence for ongoing betatron energization caused by the magnetic flux pile-up. The whistler-mode waves cause fast pitch-angle scattering of electrons and isotropisation of the electron distribution, thus making the flow braking process non-adiabatic. The waves strongly affect the electron dynamics and thus play an important role in the energy conversion chain during plasma jet braking. |
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