EAS Publications Series
Volume 8, 2003Astronomy with High Contrast Imaging
|Page(s)||79 - 92|
|Published online||28 May 2003|
Claude Aime and Rémi Soummer (eds)
EAS Publications Series, 8 (2003) 79-92
Introduction to stellar coronagraphy with entrance pupil apodization
UMR 6525 Astrophysique, University of Nice Sophia-Antipolis,
06108 Nice Cedex 2, France
The general formalism for Lyot and Roddier & Roddier coronagraphy is detailed. The influence of the mask size, chromatism and central obscuration are discussed. The necessity of entrance pupil apodization for coronagraphy is introduced from the fundamental limitation that appears in the classical technique. Prolate spheroidal functions are presented as the natural apodizations for coronagraphy.
© EAS, EDP Sciences, 2003
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