Construction of an Earth Model: Analysis of Exoplanet Light Curves and Mapping Earth at 10 parsecs with the New Worlds Observer

Details Construction of an Earth Model: Analysis of Exoplanet Light Curves and Mapping Earth at 10 parsecs with the New Worlds Observer Construction of an Earth Model: Analysis of Exoplanet Light Curves and Mapping Earth at 10 parsecs with the New Worlds Observer

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21340409o&link_type=abstract

American Astronomical Society, AAS Meeting #213, #493.05; Bulletin of the American Astronomical Society, Vol. 41, p.196

Astronomy and Astrophysics

Astronomy

Scientific paper

The orbital light curve of a terrestrial exoplanet will likely contain valuable information about the surface and atmospheric features of the planet, both in its overall shape and hourly variations. We have constructed an empirically based code capable of simulating observations with a New Worlds Observatory (NWO) of Earth from any orientation, at any time of year with continuously updated cloud and terrain coverage. By simulating these observations over a full orbital revolution we determine that the detection of liquid surface water is possible during crescent phases of planetary systems at high inclinations, while the detection of an obliquity / seasonal terrain change is possible at low inclinations. A 4 meter New Worlds Observer can accurately determine the rotation rate of the planet more than 50% of the time given only 5 days of observations with a S/N of 10.

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