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A Fast, Simple, Robust Algorithm for Coronal Temperature Reconstruction
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AI
DOI：10.3847/1538-4357/abc260.png)
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Abstract
En 中文
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 data, the algorithm is robust and extensible to any other wavelengths (e.g., X-rays) where the DEM treatment is valid.
Keywords:
Quiet Sun
Active Sun
Active solar corona
Quiet solar corona
Solar extreme ultraviolet emission
Space plasmas
Atomic spectroscopy
Journal
IF:
5.4
Papers:
8.3W
Citations:
32.0W
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