Progress at the starshade testbed at Northrop Grumman Aerospace Systems: comparisons with computer simulations

Details Progress at the starshade testbed at Northrop Grumman Aerospace Systems: comparisons with computer simulations Progress at the starshade testbed at Northrop Grumman Aerospace Systems: comparisons with computer simulations

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7731e.162s&link_type=abstract

Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave. Edited by Oschmann, Jacobus M., Jr.; Clampin

Computer Science

Scientific paper

We report on progress at the Northrop Grumman Aerospace Systems (NGAS) starshade testbed. The starshade testbed is a 42.8 meter vacuum chamber that replicates the Fresnel number of an equivalent full-scale starshade mission, namely the flagship New Worlds Observer (NWO) configuration. This paper reports on recent upgrades to the testbed and comparisons of previously published experimental results with computer simulations - which show encouraging agreement to within a factor of 1.5. We also report on a new generation of sub-scale starshades that for the first time allow us to exactly match the Fresnel number of a full-scale mission.

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