Computer Science – Performance
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21913605r&link_type=abstract
American Astronomical Society, AAS Meeting #219, #136.05
Computer Science
Performance
Scientific paper
New large, lightweight, replicated, actively controlled primary mirrors offer the potential to reduce the risk and cost of future space telescopes, large and small. For instance, "Actuated Hybrid Mirrors" - with SiC substrates, nanolaminate metal foil reflecting surfaces, and embedded solid-state actuators - have demonstrated the ability to correct many waves of system wavefront error to better than the visible diffraction limit. A space telescope using an active primary, together with occasional wavefront sensing and control, will have relaxed optical system fabrication, integration and test tolerances, making it easier and faster to assemble, and reducing system costs. It will be testable in gravity to the same performance as on orbit. It will be able to correct large errors that can occur during fabrication, assembly, test or launch - reducing mission risk. It will have less primary mirror mass, reducing overall mass in proportion. We consider the implications for future astronomical missions.
Coulter Daniel
Redding David
Wellman Joanne
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