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Impulsivity of Coronal Heating from Simulation and Analysis of the Distribution of Observed EUV brightness fluctuations

Presentation #404.06 in the session Coronal Heating Modeling.

Published onSep 18, 2023
Impulsivity of Coronal Heating from Simulation and Analysis of the Distribution of Observed EUV brightness fluctuations

We present a coronal heating simulation of an active region analogue and coupled analysis of its results in parallel with the same analysis with the active region that it imitates. The heating in the simulation is carried out with field-aligned hydrodynamic code with the spatial distribution of heating input from the CROBAR 3D coronal reconstruction code. We then insert the heating simulation results back into the coronal volume using the same tools used to make the CROBAR reconstruction, allowing creation of AIA images which can be processed to infer a distribution of observed EUV brightness fluctuations both spatially and temporally. This processing is also carried out on the real AIA data, and the simulation repeated with different choices for the impulsivity/intermittency of the heating events. These are then compared with the real distribution of brightness fluctuations to determine which one best matches the real data, those identifying what underlying distribution of heating events best matches the coronal observations.

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