Abstract: CTR (Coronal Temperature Reconstruction) reconstructs differential emission measures (DEMs) in the solar corona. Written in IDL, the code guarantees positivity of the recovered DEM, enforces an explicit smoothness constraint, returns a featureless (flat) solution in the absence of information, and converges quickly. The algorithm is robust and can be extended to other wavelengths where the DEM treatment is valid.
Credit: Plowman, Joseph; Caspi, Amir
Site: https://iopscience.iop.org/0004-637X/90 ... 357/abc260