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Solar limb theoretical tomography at millimeter, sub-millimeter, and infrared wavelengths

Abstract:

Semi-empirical models of the solar Chromosphere show, in their emission spectrum, tomography property at millimeter, sub-millimeter, and infrared wavelengths for the center of the solar disk. In this work, we studied this property in the solar limb using our numerical code PakalMPI, focusing in the region where the solar atmosphere becomes optically thick. Individual contribution of Bremsstrahlung and H– opacities was take into account in the radiative transfer process. We found that the tomography property remains in all the spectrum region under study at limb altitudes. For frequencies between 2 GHz and 5 THz the contribution of Bremsstrahlung is the dominant process above the solar limb.