Topological Dissipation PowerPoint PPT Presentation

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Title: Topological Dissipation


1
Topological Dissipationthe Solar Corona
2
Fast Dynamics
3
Simulations
Klaus Galsgaard
4
Imprint
5
All Solved
-Maybe-
  • Reconnection
  • What happens?
  • Speed?
  • Magnetic Reynolds Number
  • NOT 2D !!!
  • Energy Distribution

6
Another Approach
  • Full Atmosphere (Aschwanden 01)
  • Time Dependent (Kuperus 81)
  • Correct Driving
  • Minimal Assumptions

7
Magnetic Field
8
Active Region
9
Driver
10
Driver
11
Heating
12
Result ?
  • Correct Volumetric Heating
  • Correct TRACE DN counts
  • Spectral Line Diagnostics

(Gudiksen Nordlund 05)
(Peter et al 05)
13
Temperature
14
Temperature
15
Discrepancy?
Reconnection
  • What can we learn
  • Fundamentals about reconnection?
  • Modeling Full Particle / Hybrid
  • Observations
  • Energy sensitive
  • Distributed Effects

16
Conclusions
  • Heating Problem
  • Not a Problem?
  • Reconnection
  • Is A Problem - at Least at high energy
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