Abstract

LUZ, Víctor de la; CHAVEZ, Miguel  and  BERTONE, Emanuele. The Chromospheric Solar Millimeter-wave Cavity; a Common Property in the Semi-empirical Models. Geofís. Intl [online]. 2015, vol.54, n.2, pp.161-166. ISSN 2954-436X.  https://doi.org/10.1016/j.gi.2015.04.011.

The semi-empirical models of the solar chromosphere are useful in the study of the solar radio emission at millimeter - infrared wavelengths. However, current models do not reproduce the observations of the quiet sun. In this work we present a theoretical study of the radiative transfer equation for four semi- empirical models at these wavelengths. We found that the Chromospheric Solar Milimeter- wave Cavity (CSMC), a region where the atmosphere becomes locally optically thin at millimeter wavelengths, is present in the semi- empirical models under study. We conclude that the CSMC is a general property of the solar chromosphere where the semi-empirical models shows temperature minimum.

Keywords : Sun: chromosphere; Sun: radio radiation; Sun: infrared; methods: numerical; radiative transfer; stars: chromospheres.

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