Simultaneous observations of Sun‐aligned polar cap arcs in both hemispheres by Exos‐C and Viking

Takahiro Obara, Masanobu Kitayama, Toshifumi Mukai, Nobuyuki Kaya, J. S. Murphree, L. L. Cogger

研究成果: Article

23 引用 (Scopus)

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On September 25, 1986, the EXOS‐C satellite traversed an intense electron precipitation in the southern polar cap, while the Viking satellite simultaneously obtained image data of the polar cap arc in the northern hemisphere. The energy spectrum of the precipitation, measured by instrumentation aboard EXOS‐C, was very similar to that of adjacent (typical) auroral arcs, and the precipitation in the southern polar cap was observed in the same local time sector in which the arc was found in the northern polar cap. Observations seem to support the view that the polar cap arc occurs on closed field lines and is conjugate in both hemispheres.

元の言語English
ページ(範囲)713-716
ページ数4
ジャーナルGeophysical Research Letters
15
発行部数7
DOI
出版物ステータスPublished - 1988 7
外部発表Yes

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

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