Modeling small-scale flux emergence from the Convection Zone into the Corona
Abstract
High resolution telescopes reveal small-scale flux in the photosphere and roughly 20% of these events seem to reach and impact the chromosphere. As a result of such flux emergence, reconnection with the ambient field or other processes that do not necessarily involve reconnection but nevertheless impact the chromosphere and lower corona may occur. I am going to present recent simulations that show small-scale flux emergence in a computational domain that captures the upper-convection zone, photosphere, chromosphere and lower corona. As we will see, small scale activity is strongly dependent on the physics that dominate in the various layers of the atmosphere, such as thermo-dynamics, radiative transfer in the photosphere and thermal conduction along field lines in the corona (we use for that Bifrost). In addition, small scale activity is also dependent on the ambient field which changes rapidly with height both in strength and topology through the different layers of the solar atmosphere. Some of these small-scale events erupts into the atmosphere destabilizes the pre-existing magnetic field and drives it to new configurations.
- Publication:
-
SDO-3: Exploring the Network of SDO Science
- Pub Date:
- March 2013
- Bibcode:
- 2013enss.confE..60M
- Keywords:
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- SDO;
- SDO-7;
- SDO 7;
- SDO Workshop;
- 2013 LWS/SDO Science Workshop;
- Solar Dynamic Observatory