Volatile-Rich Earth-Mass Planets in the Habitable Zone

Details Volatile-Rich Earth-Mass Planets in the Habitable Zone Volatile-Rich Earth-Mass Planets in the Habitable Zone

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003dps....35.0703k&link_type=abstract

American Astronomical Society, DPS meeting #35, #07.03; Bulletin of the American Astronomical Society, Vol. 35, p.922

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Scientific paper

A small planet is not necessarily a terrestrial planet. Planets that form beyond the snow line with too little mass to seed rapid gas accretion (< ˜ 10 M \bigoplus ) should be rich in volatile ices like H2O and NH3. Some of these planets should migrate inward by interacting with a circumstellar disk or with other planets. Such objects can retain their volatiles for billions of years or longer at ˜ 1 AU as their thick steam atmospheres undergo slow hydrodynamic escape. These objects could appear in future surveys for extrasolar Earth analogs.
This work was performed in part under contract with the Jet Propulsion Laboratory (JPL) through the Michelson Fellowship program funded by NASA as an element of the Planet Finder Program.

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