Detection and Characterization of Exoplanets and Disks with the 1.4-m Diameter Pupil Mapping Exoplanet Coronagraphic Observer (PECO)

Details Detection and Characterization of Exoplanets and Disks with the 1.4-m Diameter Pupil Mapping Exoplanet Coronagraphic Observer (PECO) Detection and Characterization of Exoplanets and Disks with the 1.4-m Diameter Pupil Mapping Exoplanet Coronagraphic Observer (PECO)

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21460608g&link_type=abstract

American Astronomical Society, AAS Meeting #214, #606.08

Computer Science

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The Pupil-mapping Exoplanet Coronagraphic Observer (PECO) mission concept uses a coronagraphic 1.4-m space-based telescope to both image and characterize extra-solar planetary systems at optical wavelengths. PECO delivers 1e10 contrast at 2 lambda/D separation (0.15") using a high-performance Phase-Induced Amplitude Apodization (PIAA) coronagraph which remaps the telescope pupil and uses nearly all of the light coming into the aperture. PECO's heliocentric drift-away orbit provides a stable thermal environment for wavefront control.
PECO acquires narrow field images simultaneously in 16 spectral bands over wavelengths from 0.4 to 0.9 micron, utilizing all available photons for maximum wavefront sensing and sensitivity for imaging and spectroscopy. The optical design is optimized for simultaneous low-resolution spectral characterization of both planets and dust disks using a moderate-sized telescope. PECO will image the habitable zones of about 20 known F, G, K stars at a spectral resolution of R 15 with sensitivity sufficient to detect and characterize Earth-like planets and to map dust disks as small as a fraction of our own zodiacal dust cloud brightness. The current status of technology development efforts for PECO will also be briefly reviewed.
PECO is funded by NASA as an Advanced Mission Concept Study (AMCS) for the next decade.

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