Suprathermal electron isotropy in high-beta solar wind and its role in heat flux dropouts

Academic Article


  • [1] Time variations in plasma beta and a parameter which measures isotropy in suprathermal electron pitch angle distributions show a remarkably close correspondence throughout the solar wind. The finding implies that high-beta plasma, with its multiple magnetic holes and sharp field and plasma gradients, is conducive to electron pitch-angle scattering, which reduces heat flux from the Sun without field-line disconnection. Thus the finding impacts our understanding of signatures we use to determine magnetic topology in the heliosphere.
  • Authors

  • Crooker, NU
  • Larson, DE
  • Kahler, SW
  • Lamassa, SM
  • Spence, Harlan
  • Status

    Publication Date

  • June 20, 2003
  • Published In

    Digital Object Identifier (doi)


  • 30
  • Issue

  • 12