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  • Edberg, Niklas J. T.Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen (author)

Structured ionospheric outflow during the Cassini T55-T59 Titan flybys

  • Article/chapterEnglish2011

Publisher, publication year, extent ...

  • Elsevier BV,2011
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-155220
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-155220URI
  • https://doi.org/10.1016/j.pss.2011.03.007DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • During the final three of the five consecutive and similar Cassini Titan flybys T55-T59 we observe a region characterized by high plasma densities (electron densities of 1-8 cm(-3)) in the tail/nightside of Titan. This region is observed progressively farther downtail from pass to pass and is interpreted as a plume of ionospheric plasma escaping Titan, which appears steady in both location and time. The ions in this plasma plume are moving in the direction away from Titan and are a mixture of both light and heavy ions with composition revealing that their origin are in Titan's ionosphere, while the electrons are more isotropically distributed. Magnetic field measurements indicate the presence of a current sheet at the inner edge of this region. We discuss the mechanisms behind this outflow, and suggest that it could be caused by ambipolar diffusion, magnetic moment pumping or dispersive Alfven waves.

Subject headings and genre

  • Cassini
  • Titan
  • Atmospheric escape
  • Ionosphere
  • NATURAL SCIENCES
  • NATURVETENSKAP

Added entries (persons, corporate bodies, meetings, titles ...)

  • Ågren, KarinUppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)karag333 (author)
  • Wahlund, Jan-ErikUppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)janewahl (author)
  • Morooka, Michiko W.Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)mimor108 (author)
  • Andrews, D. J. (author)
  • Cowley, S. W. H. (author)
  • Wellbrock, A. (author)
  • Coates, A. J. (author)
  • Bertucci, C. (author)
  • Dougherty, M. K. (author)
  • Uppsala universitetInstitutet för rymdfysik, Uppsalaavdelningen (creator_code:org_t)

Related titles

  • In:Planetary and Space Science: Elsevier BV59:8, s. 788-7970032-06331873-5088

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