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Notes

Below are some rough notes from the discussion that followed this session at SHINE 2018. For more specific information, see the slides from both invited and contributed talks.

Scene-setting Talk 1

  • lots of structure when you zoom into ARs
  • primary tools for loop studies---EUV and X-Ray
  • nanoflares---impulsive heating, agnostic to underlying cause
  • short-lived brightenings in moss, blue shifts signature of nanoflares
  • nanoflares popular, but mechanism highly-debated
  • persistent blue shifts from active regions; occur where intensity (density) is lowest
  • outflows due to interchange reconnection between closed loops and open fieldlines
  • enhenaced low FIP elements in AR outflows
  • two-step reconnection process
  • non-Maxwellian diagnostics

Scene-setting Talk 2

  • sources?
    • open field
    • dipolar streamers
    • pseudostreamers
    • transients
  • Heavy ions
    • ion composition determined within 4 to 5 solar radii
    • determined by loop properties and release mechansims; no evolution during propagation
    • elemental abundances determined within 1 to 2 solar radii
    • Test particles in the flow, do not control the flow
  • Fastest wind has lowest charge state
  • Slow wind broader range of Fe to O, but higher charge state
  • Open magnetic fields linking back down to ARs---how?
  • High time resolution measurements may help to disentangle sources of multi-temperature plasma
  • Ionization state may be a useful marker for mapping between wind and locations on the Sun
    • How does photoionization affect this?
  • From remote sensing enhancements, can we correlate with enhancements in in-situ data?
    • Time-dependence important, but hard to resolve with current instrumentation

Additional Questions

  • Can we use loop models to simulate these processes?
    • How can we connect them to wind models?
    • How to produce wind observables?
  • What constraints can IRIS/EIS provide? [follow-up from Vanessa's talk]
  • Deviations from Maxwellians? Are there correlated between ARs and wind?
    • But a lot happens (kinetic-wise) between the Sun and 1 AU... [Lepri and Viall]
  • How consistent are periodicities in the wind?
  • Correlations between outflows and type III radio bursts? Need statistics... [Bin Chen]