High-fidelity 3D Reconstruction of Solar Coronal Physics with the Updated CROBAR Method

Abstract We present an extension of the Coronal Reconstruction Onto B-Aligned Regions (CROBAR) method to Linear Force Free Field (LFFF) extrapolations, and apply it to the reconstruction of a set of Atmospheric Imaging Assembly, Michelson Doppler Imager, and STEREO EUVI data. The results demonstrate that CROBAR is not only capable of reconstructing coronal emission structures, but also the previously made claim that it can constrain coronal field extrapolations, in this case the LFFF’s α parameter. They also provide a real-world example of how CROBAR can easily incorporate information from multiple perspectives to improve its reconstructions, and we also use the additional perspectives to help validate the reconstructions. We furthermore touch on the use of real-world emission passbands rather than idealized power-law type ones using differential emission measures (DEMs). We conclude with a comparison of CROBAR-generated emission to observed emission and those produced with idealized DEM based power laws. These results further illustrate the promise of CROBAR for real-world applications, and we make available a preliminary release of the software available for download.