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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