Magnetospheric Reconnection and Accelerated Flows
Explore the principles of magnetospheric reconnection, its impact on solar energy penetration, and ongoing research on predictable flow patterns. Discover the implications of tilt angles and asymmetric flows in this intriguing scientific investigation.
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Presentation Transcript
Magnetospheric Reconnection and Accelerated Flows Claire Kuang Mentor: Dr. David Sibeck Basic Concepts Current Theories My Research and Results Future Research
What is reconnection? Occurs at the boundary of two different magnetic fields Allows energy from the sun to penetrate the magnetosphere
Branches of Thought Completely Predictable Completely Predictable or Unpredictable! or Unpredictable! The direction of the line cannot be uniquely determined and may lie anywhere in the range of angles such that [components perpendicular to the line must reverse] is satisfied. ~Cowley 1976 Bi Bi B0 It is conceivable that solutions exist with other orientations. But such solutions by necessity must display a peculiar asymmetry between the plasma ejections regions above and below the reconnection line. ~Sonnerup 1974 B0 What can we learn from models? What can we learn from models?
My Research Used models (through CCMC) to select and compare specific run conditions Manually identified reconnection on the XZ plane Plotted these data points to determine the line of reconnection Compiled a database of runs and results for future reference
Preliminary Conclusions The reconnection line tiltswith respect to IMF angle in a predictable predictable manner, though the exact degree varies with the parameters of each run. IMF direction Reconnection line Fast flow direction The degree of tilt is noticeably affected by the strength of the IMF. Stronger IMF = larger tilt larger tilt Stronger IMF =
Sonnerup vs. Cowley DID observe asymmetric flows above and below the reconnection line Fulfilled Cowley s requirement of flow reversal, and found consistent tilt angles (~95% similar across runs)
Further Research Continue to look at more runs for a more comprehensive picture of reconnection in models OR Why are there missing accelerated flows for certain runs? Is the reconnection line actually a line?
Special thanks to Dr. David Sibeck Dr. Hui Zhang Intern coordinator Cori Quirk
