Theoretical Multi-Frequency Solar Radii and Limb Brightening

Monday, 15 December 2014
Victor De la Luz, Universidad Nacional Autonoma de Mexico, Instituto de Geofísica, Unidad Michoacan, Mexico City, Mexico
Theoretical works show the solar limb brightening at radio – sub-millimeter wavelengths as opposed property to the solar limb darkening at visible range of the electromagnetic spectrum. Nowadays, there is not a consistently study in the wide radio-infrared electromagnetic regions. In this work, we present a detailed study of the solar limb brightening from 2 GHz to 10 THz using PakalMPI code to solve the radiative transfer equation in a 3D geometry. We found the theoretical region of expected maximum limb brightening and compute the theoretical solar radii at the same frequencies.