Stoll, Katja und Pick, Leonie und Wang, Dedong und Shprits, Yuri und Cao, Xing und Ni, Binbin (2023) Magnetospheric formation processes of the diffuse aurora. DPG-Frühjahrstagung der Sektion Materie und Kosmos (SMuK), 2023-03-20 - 2023-03-24, Dresden, Germany.
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Kurzfassung
Resonant wave-particle interactions in the Earth's magnetosphere can lead to the scattering of plasma sheet electrons which in turn cause the optical phenomenon of diffuse aurora. Specifically, electrostatic electron cyclotron harmonic (ECH) waves can effectively precipitate hundreds of eV to tens of keV electrons into the upper atmosphere. This process can generally be treated as a diffusion problem, requiring the numerical calculation of bounce-averaged quasi-linear diffusion coefficients. ECH waves are thought to be generated by the loss cone instability of the ambient hot electron distribution. Therefore, the determination of ECH wave-induced scattering rates requires information about the properties of the hot plasma sheet electrons responsible for the wave excitation. We report our progress on analysing the sensitivity of ECH wave-induced electron scattering effects to the temperature of the hot electron components, which has an influence on the growth rate of the waves.
elib-URL des Eintrags: | https://elib.dlr.de/199954/ | ||||||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||
Titel: | Magnetospheric formation processes of the diffuse aurora | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 23 März 2023 | ||||||||||||||||||||||||||||
Referierte Publikation: | Nein | ||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||
Status: | akzeptierter Beitrag | ||||||||||||||||||||||||||||
Stichwörter: | magnetosphere, ECH waves, wave-particle interactions | ||||||||||||||||||||||||||||
Veranstaltungstitel: | DPG-Frühjahrstagung der Sektion Materie und Kosmos (SMuK) | ||||||||||||||||||||||||||||
Veranstaltungsort: | Dresden, Germany | ||||||||||||||||||||||||||||
Veranstaltungsart: | nationale Konferenz | ||||||||||||||||||||||||||||
Veranstaltungsbeginn: | 20 März 2023 | ||||||||||||||||||||||||||||
Veranstaltungsende: | 24 März 2023 | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Solar-Terrestrische Physik SO | ||||||||||||||||||||||||||||
Standort: | Neustrelitz | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Solar-Terrestrische Physik | ||||||||||||||||||||||||||||
Hinterlegt von: | Stoll, Katja | ||||||||||||||||||||||||||||
Hinterlegt am: | 29 Nov 2023 10:11 | ||||||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 21:00 |
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