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

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9 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 languageEnglish (US)
Pages (from-to)323-332
Number of pages10
JournalComptes Rendus Physique
Volume8
Issue number3-4
DOIs
StatePublished - Apr 1 2007
Externally publishedYes

Keywords

  • Coronagraph
  • Exoplanets
  • Telescope

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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