Biology
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsa52a..07t&link_type=abstract
American Geophysical Union, Fall Meeting 2005, abstract #SA52A-07
Biology
0343 Planetary Atmospheres (5210, 5405, 5704), 5200 Planetary Sciences: Astrobiology, 5205 Formation Of Stars And Planets, 5210 Planetary Atmospheres, Clouds, And Hazes (0343), 5215 Origin Of Life
Scientific paper
The Terrestrial Planet Finder Coronagraph (TPF-C) is a major NASA mission, planned for launch around 2015, designed to detect Earth-like planets around nearby stars, to characterize them in terms of atmospheric and surface constituents, and to search for signs of life on these planets. TPF-C will detect extrasolar planets using visible- and near-infrared filter photometry. It will characterize those planets using low-resolution spectroscopy. Potentially detectable species include H2O, O2, O3, CH4, CO2, Rayleigh scattering, and the "red-edge" signature of chlorophyll in the leaves of land plants. The mission is planned around a telescope with a large primary mirror (8m by 3.5 m), and focal-plane instrumentation comprising a coronagraph, a deformable-mirror speckle nuller, and a spectrograph. TPF-C's prospects for the expected number of detectable planets, the measurement of atmospheric and surface species, and the search for signs of life will be presented.
Kasting James
Traub Wesley A.
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