Computer Science – Performance
Scientific paper
Sep 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007spie.6687e..38l&link_type=abstract
UV/Optical/IR Space Telescopes: Innovative Technologies and Concepts III. Edited by MacEwen, Howard A.; Breckinridge, James B.
Computer Science
Performance
1
Scientific paper
New Worlds Observer is an external occulter, or, starshade, mission designed to detect visible wavelength (less than 1 micron) light from Earth-like planets around solar neighborhood stars. A telescope spacecraft operates in the "shadow" cast by an starshade spacecraft, located tens of thousands of kilometers away. The specially contoured petals on the starshade spacecraft control the diffraction to produce high contrast suppression of the on-axis starlight. The starshade operates in the Fresnel, or near field, diffraction regime, which adds complexity to numerical simulations of its performance. As a validation of the numerical models and a demonstration of the starshade capabilities, we have built a testbed to measure the performance of subscale NWO hypergaussian starshades. We describe the rationale for our testbed and its set up. We expect to be able to report results from the testbed in a later paper this year.
Glassman Tiffany
Lillie Chuck
Lo Amy S.
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