Computer Science – Performance
Scientific paper
Jun 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007lyot.confr..25c&link_type=abstract
Proceedings of the conference In the Spirit of Bernard Lyot: The Direct Detection of Planets and Circumstellar Disks in the 21s
Computer Science
Performance
Scientific paper
One proposed design for directly detecting extrasolar planets is a occulter, a spacecraft that would fly between a telescope and a target star, blocking the light from the star. Diffraction effects require the occulter to be shaped to prevent the formation of Poisson's spot; these shapes can be adjusted to create a dark shadow at the telescope, effectively removing virtually all of the starlight. This shadow is wavelength-dependent and sensitive to errors in shape and alignment. Recently, we developed shapes that allow the planet to be seen, even at small angular separation. We present a method of optimization to find designs that give desired performance over a spectral band, and discuss the interrelationship with tolerancing in control and manufacturing.
Cady Eric
Kasdin Jeremy N.
Vanderbei Robert
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