New atmospheric model of Epsilon Eridani

VIEYTES, M. C.; PERALTA, J. I.; BUCCINO, A. P.; MAUAS, P. J. D.

Congreso; 58a. Reunión Anual de la Asociciación Argentina de Astronomía; 2015

We present a new semi-empirical model of the atmosphere of the widely studied K-dwarf star Epsilon Eridani (HD 22049). The model is built to reproduce the visible spectral observations form 3800 to 6800 A, and the h and k Mg II lines profiles. The computations were carried out using The Solar-Stellar Radiation Physical Modeling (SSRPM) tools, which calculate non-LTE population for the most important species in the stellar atmosphere.  We show a comparison between the synthetic and observed spectra, obtaining a good agreement in all the studied spectral range.