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  Energetic Electron Pitch Angle Distributions During the Cassini Final Orbits

Carbary, J. F., Mitchell, D. G., Kollmann, P., Krupp, N., Roussos, E., & Dougherty, M. K. (2018). Energetic Electron Pitch Angle Distributions During the Cassini Final Orbits. Geophysical Research Letters, 45(7), 2911-2917. doi:10.1002/2018GL077656.

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Carbary, J. F., Author
Mitchell, D. G., Author
Kollmann, P., Author
Krupp, Norbert1, Author              
Roussos, Elias1, Author              
Dougherty, M. K., Author
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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 MPIS_PROJECTS: CASSINI: MIMI
 MPIS_PROJECTS: CASSINI: LEMMS
 Abstract: Pitch angle distributions (PADs) of very energetic electrons (110–365 keV) are examined during the ring‐grazing and proximal orbits of the Cassini spacecraft, from day 320 2016 (15 November) to day 257 2017 (14 September). These repeating orbits allowed a statistical evaluation of the PADs within the magnetopause on the nightside of Saturn. Along L‐shells (i.e., equatorial crossing distances of magnetic field lines) near and outside that of Titan and north of the equator, the electron fluxes were unidirectionally field‐aligned going away from Saturn. Along L‐shells inside Titan's and south of the equator, the electrons had bidirectional or pancake (trapping) PADs. This behavior suggests that the field lines within Titan's L‐shell are generally closed, while those outside of that L‐shell are generally open. This result strictly applies only to the nightside local times sampled during the final Cassini orbits, but one may infer a similar behavior at other times.

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Language(s): eng - English
 Dates: 2018-04-1620182018
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/2018GL077656
 Degree: -

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Title: Geophysical Research Letters
  Abbreviation : GRL
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Geophysical Union
Pages: - Volume / Issue: 45 (7) Sequence Number: - Start / End Page: 2911 - 2917 Identifier: ISSN: 0094-8276
CoNE: https://pure.mpg.de/cone/journals/resource/954925465217