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

Olivier Guyon

doi:10.1016/j.crhy.2007.02.005

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

Olivier Guyon

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

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 on 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. To cite this article: O. Guyon, C. R. Physique 8 (2007).

Original language	English (US)
Pages (from-to)	323-332
Number of pages	10
Journal	Comptes Rendus Physique
Volume	8
Issue number	3-4
DOIs	https://doi.org/10.1016/j.crhy.2007.02.005
State	Published - Apr 2007
Externally published	Yes

Keywords

Coronagraph
Exoplanets
Telescope

ASJC Scopus subject areas

General Physics and Astronomy

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10.1016/j.crhy.2007.02.005

Cite this

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AB - 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 on 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. To cite this article: O. Guyon, C. R. Physique 8 (2007).

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KW - Exoplanets

KW - Telescope

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ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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