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Field-aligned photoelectron energy peaks at high altitude and on the nightside of Titan JGR-IMPACT FACTOR. 3,71 https://agupubs.onlinelibrary.wiley.com/journal/21699100 ISSN 2169-9100

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Fecha
06/01/2020
Autor
Caro Carretero, Raquel
Cao, Y-T
Wellbrock, A.
Estado
info:eu-repo/semantics/publishedVersion
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Resumen
The ionization of N2 by strong solar He II 30.4 nm photons produces distinctive spectral 22 peaks near 24.1 eV in Titan s upper atmosphere, which have been observed by the Elec23 tron Spectrometer (ELS) as part of the Cassini Plasma Spectrometer (CAPS). The ELS observations reveal that, in addition to the dayside, photoelectron peaks were also detected on the deep nightside where photoionization is switched off, as well as at sufficiently high altitudes where the ambient neutral density is low.
 
The ionization of N2 by strong solar He II 30.4 nm photons produces distinctive spectral peaks near 24.1 eV in Titan s upper atmosphere, which have been observed by the Electron Spectrometer (ELS) as part of the Cassini Plasma Spectrometer (CAPS). The ELS observations reveal that, in addition to the dayside, photoelectron peaks were also detected on the deep nightside where photoionization is switched off, as well as at sufficiently high altitudes where the ambient neutral density is low. These photoelectron peaks are unlikely to be produced locally but instead must be contributed by transport along the magnetic field lines from their dayside source regions. In this study, we present a statistical survey of all photoelectron peaks identified with an automatic finite impulse response algorithm based on the available ELS data accumulated during 56 Titan flybys.
 
URI
10.1029/2019JE006252
DOI
10.1029/2019JE006252
Field-aligned photoelectron energy peaks at high altitude and on the nightside of Titan JGR-IMPACT FACTOR. 3,71 https://agupubs.onlinelibrary.wiley.com/journal/21699100 ISSN 2169-9100
Tipo de Actividad
Artículos en revistas
ISSN
0148-0227
Palabras Clave
Titan flybys
Titan flybys, photoelectrons
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Repositorio de la Universidad Pontificia Comillas copyright © 2015  Desarrollado con DSpace Software
Contacto | Sugerencias