Climate and radiative properties of a tidally-locked planet around Proxima Centauri.
Galuzzo D., Berrilli F., Cagnazzo C., Giovannelli L., Fierli F.
III - Astrofisica
Aula 32B-3 - Mercoledì 19 h 09:00 - 13:00
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Red dwarf stars are the most common type of stars in our Galaxy. That's why the search for habitable exoplanets is focused on such stars, although high X-UV fluxes and extreme space weather events can represent a decisive impediment to the presence of life forms. We investigate the climate of the tidally locked Earth-like planet orbiting around Proxima Centauri via the 3-D atmospheric general circulation model PlaSim and the 1-D radiative transfer model uvspec. A planetary preindustrial atmosphere, circular orbit and null axial tilt are assumed. The thermal emission of the planet-host star system is calculated in the infrared region.