EAS Publications Series
Volume 8, 2003Astronomy with High Contrast Imaging
|Page(s)||93 - 105|
|Published online||28 May 2003|
Claude Aime and Rémi Soummer (eds)
EAS Publications Series, 8 (2003) 93-105
Prolate apodized coronagraphy: numerical simulations for circular apertures
UMR 6525 Astrophysique, University of Nice Sophia-Antipolis,
06108 Nice Cedex 2, France
2 School of Physics, The University of Western Australia, Crawley, WA 6009, Australia
The formalism for the prolate apodized coronagraphs is shortly outlined. A presentation of the numerical computation of the circular prolate apodization is given, and a comparison is made between the exact prolate and the solution obtained by Guyon & Roddier (2000), with an iterative algorithm. The agreement is excellent between the two solutions, provided a sufficient sampling of the mask. Numerical simulations are presented for circular apertures with prolate apodizations and compared to the classical unapodized technique: off-axis response, effect of mask size, central obscuration and chromatism.
© EAS, EDP Sciences, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.