Hybrid Lyot Coronagraph for WFIRST-AFTA: coronagraph design and performance metrics

被引：6
|
作者：
Trauger, John [1 ]
Gordon, Brian [1 ]
Krist, John [1 ]
Moody, Dwight [1 ]
机构：
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
来源：
TECHNIQUES AND INSTRUMENTATION FOR DETECTION OF EXOPLANETS VII | 2015年 / 9605卷
关键词：
exoplanet; coronagraph; active optics;
D O I：
10.1117/12.2190625
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We review the design, performance, and future prospects for the Hybrid Lyot Coronagraph (HLC) on the WFIRST-AFTA telescope. Together with a pair of deformable mirrors for active wavefront control, the HLC creates high contrast dark fields of view at 10(-9) contrast levels, extending to within angular separations of 3 lambda(0)/D from the central star, over spectral bandwidths of 10% or more.
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页数：8
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