Astronomy and Astrophysics – Astronomy
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21011004l&link_type=abstract
American Astronomical Society Meeting 210, #110.04; Bulletin of the American Astronomical Society, Vol. 39, p.234
Astronomy and Astrophysics
Astronomy
2
Scientific paper
NASA's Kepler mission is scheduled for launch in November 2008. It will stare at 100,000 solar-type dwarfs in a single field of view in Cygnus and Lyra continuously for four years and will identify hundreds of transiting planets, even down to the size of the earth. A major challenge will be follow-up observations to sort out the stellar imposters from true planets. With support from the Harvard University Origins of Life Initiative, the CfA and the Geneva Observatory are collaborating to build HARPS-NEF, a copy for the Northern Hemisphere of the highly successful HARPS on the 3.6-m telescope at ESO in the Southern Hemisphere. This new facility will play a crucial role in deriving spectroscopic orbits and thereby masses for some of the most interesting transiting planets identified by Kepler. A new generation of theoretical models for terrestrial planets suggests that masses and radii good to 5 or 10 percent can distinguish between rocky planets and water worlds. Partial support from the Kepler mission under NASA Cooperative Agreement NCC2-1390 is gratefully acknowledged.
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