Semi-Successful Semi-Empirical Model of TRAPPIST-1 Atmosphere

TILIPMAN, DENNIS; MARIELA C. VIEYTES; JEFFREY L. LINSKY

Congreso; Towards the comparative study of temperate terrestrial worlds; 2019

Previously (Fontenla, et al. (2016)), we computed several one-dimensional models of M-dwarf atmospheres using SSRPMradiative transfer code. SSRPM solves for full non-LTE statistical equilibrium of thousands of atomic and molecular levelsand uses up to date databases to compute millions of spectral lines. Here we extend our analysis to TRAPPIST-1 atmosphereand present a preliminary model for this star. We also discuss the limitations of and possible improvements to our model.Such a model is crucial for understanding the radiation environment that the TRAPPIST-1 planets are subject to, which hasimmediate implications for atmospheric chemistry on these planets as well as their habitability