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| B30: | Revisiting the Habitable Zone |
| Sponsor: |
Biogeosciences
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| Convener: |
Mark Claire Virtual Planetary Laboratory USA mclaire@astro.washington.edu Shawn Domagal-Goldman University of Washington USA sgoldman@astro.washington.edu Rory Barnes University of Washington USA rory@astro.washington.edu Kevin Hand JPL USA kevin.p.hand@jpl.nasa.gov |
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0330 0414 5210 0456 .
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| Description: | Traditionally the habitable zone has been defined as the region around a main sequence star in which terrestrial-like planets, with Earth-like atmospheres, can support surface water. This definition has served as an intellectual framework for interpreting potential habitability of exoplanets, but has not been significantly revised in the 16 years since the calculations of Kasting et al. (1993). With the first unambiguous discovery of terrestrial exoplanets made this year, as well as the recent launch of Kepler, there is renewed interest in determining additional constraints on, alternative routes to, and outstanding issues for planetary habitability. This session will explore various types of habitable zones, including, but not limited to, surface and subsurface habitable zones related to radiative, geophysical, and compositional effects. Selected abstracts will present new concepts, and will foster an interdisciplinary dialogue among geophysicists, atmospheric scientists, planetary scientists, and astronomers as the physical phenomena of habitability are modeled, and ultimately observed. |