Diagnostics of corotating interaction regions with the kinetic properties of iron ions as determined with STEREO/PLASTIC

Academic Article


  • Abstract. STEREO/PLASTIC determines three-dimensional distributions of solar wind iron ions with unprecedented time resolution. Typically 300 to 1000 counts are registered within each 5 min time interval. For the present study we use the information contained in these distributions to characterize CIRs (Corotating Interaction Regions) in two test cases. We perform a consistency test for both the derived physical parameters and for the analytical model of CIRs of Lee (2000). At 1 AU we find that apart from compositional changes the most indicative parameter for marking the time when a CIR passes a spacecraft is the angular deflection of the flow vector of particles. Changes in particle densities and the changes in magnitudes of speeds are apparently less reliable indicators of stream interfaces.
  • Authors

  • Bochsler, P
  • Lee, MA
  • Karrer, R
  • Jian, LK
  • Ellis, L
  • Farrugia, Charles
  • Galvin, AB
  • Kistler, Lynn
  • Kucharek, Harald
  • Moebius, E
  • Popecki, MA
  • Simunac, KDC
  • Blush, LM
  • Daoudi, H
  • Wurz, P
  • Klecker, B
  • Wimmer-Schweingruber, RF
  • Thompson, B
  • Luhmann, JG
  • Russell, CT
  • Opitz, A
  • Status

    Publication Date

  • 2010
  • Keywords

  • Discontinuities
  • Interplanetary physics
  • Interplanetary shocks
  • Solar wind plasma
  • Digital Object Identifier (doi)

    Start Page

  • 491
  • End Page

  • 497
  • Volume

  • 28
  • Issue

  • 2