Computer Science – Performance
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21725429c&link_type=abstract
American Astronomical Society, AAS Meeting #217, #254.29; Bulletin of the American Astronomical Society, Vol. 43, 2011
Computer Science
Performance
Scientific paper
Occulters are a promising concept to enable direct detection of exoplanets from space: these are spacecraft with precisely-shaped optical edges which would fly in formation with a telescope, blocking light from a star while leaving light from nearby planets unaffected. Occulters can be designed by optimization for use with telescopes over a wide range of telescope aperture sizes, science bands, and starlight suppression levels, and it can be shown that this optimization depends primarily on a small number of nondimensional parameters. We show how these parameters may be used to relate and compare the performance of occulter-telescope systems of differing scales and bandpasses, and discuss some point designs applicable to current telescopes and telescope concepts. The telescopes in these systems have apertures ranging from less than a meter to greater than 10m; while these designs are all capable of detecting terrestrial planets in habitable zones of nearby stars, they may vary significantly in cost and expected science return.
Cady Eric
Kasdin Jeremy
Lisman Doug
Shaklan Stuart
Spergel David
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