Multithermal Analysis of Coronal Loops Using SDO-AIA Data
Abstract
The Atmospheric Imaging Assembly (AIA) on the Solar Dynamics Observatory is designed to provide an unprecedented view of the solar corona. The six coronal filters peak at different temperatures and cover the entire active region temperature range, making AIA ideal for multi-thermal analysis. Temperature analysis relies on the instrument response functions, sensitivity of each filter with respect to temperature. These response functions are constructed by convolving the instrument effective areas with a synthetic coronal spectrum calculated at each relevant temperature. Each coronal spectrum relies on the data tabulated in the CHIANTI atomic physics database. Recent upgrades to CHIANTI have resulted in more complete calculations of the synthetic spectra in the AIA wavelength bands, especially near 94 and 131 angstroms. These advances have led to improved results for the Differential Emission Measure analysis of coronal loop cross-field temperatures calculated from AIA data. These improved results will be presented.
- Publication:
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American Astronomical Society Meeting Abstracts
- Pub Date:
- June 2013
- Bibcode:
- 2013AAS...22211603S