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A Fast, Simple, Robust Algorithm for Coronal Temperature Reconstruction View all abstracts by submitter

Amir Caspi   Submitted: 2020-12-29 23:58

We describe a new algorithm for reconstruction of Differential Emission Measures (DEMs) in the solar corona. Although a number of such algorithms currently exist, they can have difficulty converging for some cases, and can be complex, slow, or idiosyncratic in their output (i.e., their inversions can have features that are a result of the inversion code and instrument response, not of the solar source); we will document some of these issues in this paper. The new algorithm described here significantly reduces these drawbacks and is particularly notable for its simplicity; it is reproduced here, in full, on a single page. After we describe the algorithm, we compare its performance and fidelity with some prevalent methods. Although presented here for extreme ultraviolet (EUV) data, the algorithm is robust and extensible to any other wavelengths (e.g., X-rays) where the DEM treatment is valid.

Authors: Joseph Plowman, Amir Caspi
Projects: SDO-AIA

Publication Status: Published -- Plowman & Caspi 2020, ApJ, 905, 17; DOI: 10.3847/1538-4357/abc260
Last Modified: 2020-12-30 16:14
Go to main E-Print page  Radio Measurements of the Magnetic Field in the Solar Chromosphere and the Corona  Nonlinear Alfv'en Wave Model of Stellar Coronae and Winds from the Sun to M dwarfs  Edit Entry  Download Preprint  Delete Entry 

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