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Space Science Reviews

, Volume 72, Issue 1–2, pp 315–320 | Cite as

Ulysses observations of a coronal origin particle event at 32° south heliographic latitutde

  • M. Pick
  • A. Buttighoffer
  • A. Kerdraon
  • T. P. Armstrong
  • E. C. Roelof
  • S. Hoang
  • L. J. Lanzerotti
  • G. M. Simnett
  • J. Lemen
Session 3: Energetic Particles in the Heliosphere

Abstract

A remarkable streaming beam-like particle event of 60 keV-5 MeV ions and of 38–315 keV electrons has been reported previously. This event has been associated with the passage of a Coronal Mass Ejection (CME) over the Ulysses spacecraft on June 9–13, 1993. At this time, the spacecraft was located at 4.6 AU from the sun and at an heliolatitude of 32° south. It was proposed (Armstrong et al., 1994) that the particle injection source could have been of coronal origin. In this study, we analyse the solar activity during this period. We identify a region of solar radio noise storms in the corona and in particular, a flare on June 7 that presents all the required characteristics to produce the hot plasma beam observed in the interplanetary medium.

Keywords

Flare Solar Activity Coronal Mass Ejection Solar Radio Interplanetary Medium 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • M. Pick
    • 1
  • A. Buttighoffer
    • 1
  • A. Kerdraon
    • 1
  • T. P. Armstrong
    • 2
  • E. C. Roelof
    • 3
  • S. Hoang
    • 4
  • L. J. Lanzerotti
    • 5
  • G. M. Simnett
    • 6
  • J. Lemen
    • 7
  1. 1.URA 1756 CNRSObservatoire de ParisFrance
  2. 2.University of KansasLawrenceUSA
  3. 3.Applied Physics LaboratoryLaurelUSA
  4. 4.URA 264 CNRSObservatoire de ParisFrance
  5. 5.AT&T Bell LaboratoriesMurray HillUSA
  6. 6.University of BirminghamUK
  7. 7.Lockeed Palo Alto Research LaboratoryUSA

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