Temperature Dependence of Plasmaspheric Ion Composition

DOI Web Site Web Site Web Site 被引用文献2件
  • J. Goldstein
    Space Science and Engineering Division Southwest Research Institute San Antonio TX USA
  • D. Gallagher
    NASA Marshall Space Flight Center Huntsville AL USA
  • P. D. Craven
    NASA Marshall Space Flight Center Huntsville AL USA
  • R. H. Comfort
    Emeritus University of Alabama in Huntsville Huntsville AL USA
  • K. J. Genestreti
    Institute for the Study of Earth, Oceans, and Space University of New Hampshire Durham NH USA
  • C. Mouikis
    Institute for the Study of Earth, Oceans, and Space University of New Hampshire Durham NH USA
  • H. Spence
    Institute for the Study of Earth, Oceans, and Space University of New Hampshire Durham NH USA
  • W. Kurth
    Department of Physics and Astronomy University of Iowa Iowa City IA USA
  • J. Wygant
    Department of Physics and Astronomy University of Minnesota, Twin Cities Minneapolis MN USA
  • R. M. Skoug
    Los Alamos National Laboratory Los Alamos NM USA
  • B. A. Larsen
    Los Alamos National Laboratory Los Alamos NM USA
  • G. D. Reeves
    Los Alamos National Laboratory Los Alamos NM USA
  • S. De Pascuale
    Oak Ridge National Laboratory Oak Ridge TN USA

書誌事項

公開日
2019-08
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1029/2019ja026822
公開者
American Geophysical Union (AGU)

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説明

<jats:title>Abstract</jats:title><jats:p>We analyze a database of Dynamics Explorer‐1 (DE‐1) Retarding Ion Mass Spectrometer densities and temperatures to yield the first explicit measure of how cold ion concentration depends on temperature. We find that cold H<jats:sup>+</jats:sup> and He<jats:sup>+</jats:sup> concentrations have very weak dependence on temperature, but cold O<jats:sup>+</jats:sup> ion concentration increases steeply as these ions become warmer. We demonstrate how this result can aid in analyzing composition data from other satellites without spacecraft potential mitigation, by applying the result to an example using data from the Van Allen Probes mission. Measurement of light ion concentrations above 1 electron volt (eV) are a reasonable proxy for the concentrations of colder (eV) ions. Warmer O<jats:sup>+</jats:sup> ion concentrations may be extrapolated to colder temperatures using our fit to the statistical distribution versus temperature.</jats:p>

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