Determination of habitable zones in extrasolar planetary systems: Where are Gaia's sisters?

  title={Determination of habitable zones in extrasolar planetary systems: Where are Gaia's sisters?},
  author={Siegfried Franck and Werner Bloh and Christine Bounama and M. Steffen and Detlef Sch{\"o}nberner and Hans Joachim Schellnhuber},
  journal={Journal of Geophysical Research},
A general modeling scheme for assessing the suitability for life of extrasolar planets is presented. The scheme focuses on the identification of the “habitable zone” in main sequence star planetary systems accommodating Earth-like components. Our definition of habitability is based on the long-term possibility of photosynthetic biomass production under geodynamic conditions. Therefore all the pertinent astrophysical, climatological, biogeochemical, and geodynamic processes involved in the… 

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