Using Coordinated Observations from the Flight of the High Resolution Coronal Imager to Constrain Active Region Heating Scenarios
Abstract
Excellent coordinated observations of active region 12712 were obtained from EIS, XRT, IRIS, AIA, and HMI during the flight of the High Resolution Coronal Imager (Hi-C) sounding rocket on May 29, 2018. This region displayed a typical active region core structure with relatively short, high temperature loops ( 4 MK) crossing the polarity inversion line and bright moss located at the footpoints of these loops. To model the observed coronal emission we combine non-linear force free extrapolations of photospheric magnetic fields with coronally-averaged (0D) solutions to the hydrodynamic loop equations to create time-dependent simulations of the full active region. Previous simulation results have suggested that a heating scenario which combines a volumetric heating rate that is proportional to the mean magnetic field divided by the loop length with a waiting time between events that is proportional to event energy is consistent with the observed thermal properties of active region cores. In this poster we will present detailed comparisons of this and other heating scenarios with the observations. To model chromospheric and transition region emission we compute solutions to the full 1D hydrodynamic loop equations for a subset of the observed field lines.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFMSH21B3284W
- Keywords:
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- 7507 Chromosphere;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMYDE: 7509 Corona;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMYDE: 7538 Solar irradiance;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMYDE: 7594 Instruments and techniques;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY