Evolución de la Zona de Habitabilidad Estelar

D. POFFO, M. GÓMEZ

Tafí del Valle, Tucumán

Jornada; Segundas Jornadas de Astrofísica Estelar; 2011

INSUGEO - Tucumán, Observatorio Astronómico de Córdoba

The Stellar  Habitable Zone is defined as the distance at which water can exist in liquid form on the surface of a planet. In this contribution we apply a simple single-temperature-model to calculate the boundaries of the Stellar Habitable Zone. We analyze the variation of the so-called habitable zone as function of the evolution of the central star. In particular we study how the habitable zone changes for 3, 1.5, 1 and 0.6 M_Sun stars with solar metallicity. For stars in this range, we identify evolutionary stages long enough to allow the development of the Live on the surface of a planet in the Stellar Habitable Zone. These stars define the group of the ´´Astrobiology Interesting Stars´´. The stellar stability is a necessary but not a sufficient requirement to the development of the Live.