A theoretical look at coronagraph design and performance for direct imaging of exoplanets

被引：9
作者：
Guyon, Olivier [1 ]
机构：
[1] Natl Astron Observ Japan, Subaru Telescope, Hilo, HI 96720 USA
来源：
COMPTES RENDUS PHYSIQUE | 2007年 / 8卷 / 3-4期
关键词：
coronagraph; exoplanets; telescope;
D O I：
10.1016/j.crhy.2007.02.005
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
New coronagraph concepts are being proposed at an increasing rate. In this article, I look at the intrinsic performance each concept can theoretically offer for direct detection of exoplanets. Fundamental physics sets quantifiable limits oil the performance of coronagraphs. This theoretical work provides valuable insight into how to design high performance coronagraphs, explains many of the characteristics of particular designs and reveals the importance of stellar angular diameter on coronagraph performance. This study shows that the PIAA coronagraph appears to be extremely attractive for direct imaging of exoplanets. Recent results obtained in the laboratory with this coronagraph are briefly presented.
引用
收藏
页码：323 / 332
页数：10
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