Imaging and Characterizing the Habitable Zones of nearby Planetary Systems with the Pupil mapping Exoplanet Coronagraphic Observer (PECO)

Details Imaging and Characterizing the Habitable Zones of nearby Planetary Systems with the Pupil mapping Exoplanet Coronagraphic Observer (PECO) Imaging and Characterizing the Habitable Zones of nearby Planetary Systems with the Pupil mapping Exoplanet Coronagraphic Observer (PECO)

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21323408g&link_type=abstract

American Astronomical Society, AAS Meeting #213, #234.08; Bulletin of the American Astronomical Society, Vol. 41, p.507

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The Pupil mapping Exoplanet Coronagraphic Observer (PECO) mission concept is a 1.4-m coronagraphic telescope aimed at imaging and characterizing extra-solar planetary systems at optical wavelengths. Thanks to a high performance Phase-Induced Amplitude Apodization (PIAA) coronagraph which remaps the telescope pupil, PECO can deliver 1e10 contrast at 2 lambda/D (0.15") and uses almost all the starlight that passes through the aperture.
PECO can image at spectral resolution R 15 the habitable zones of about 20 already known F, G, K stars with sensitivity sufficient to detect planets down to Earth size, and to map dust clouds down to a fraction of our zodiacal cloud dust brightness. PECO will acquire narrow field images simultaneously in 10 to 20 spectral bands covering wavelengths from 0.4 to 1.0 micron and will utilize all available photons for maximum wavefront sensing and imaging/spectroscopy sensitivity. This approach is well suited for simultaneous low-resolution spectral characterization of both planets and dust clouds with a moderately sized telescope.

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