EAS Publications Series
Volume 12, 2004Astronomy with High Contrast Imaging II
|Page(s)||137 - 156|
|Published online||11 October 2004|
C. Aime and R. Soummer (eds)
EAS Publications Series, 12 (2004) 137-156
Adaptive optics for very high-contrast imaging: numerical simulations
INAF - Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, 50125 Firenze, Italy
Corresponding author: email@example.com
Due to its capacity in retrieving the angular resolution of ground-based optical telescopes together with their intrinsic sensitivity, adaptive optics (AO) is well known to be of fundamental importance for a wide range of astronomical applications. In the case of very high-contrast imaging it is even more critical given the limitation due to the atmospheric residuals. The ability of an AO system in "cleaning" the obtained point-spread function before a coronagraphic stage is therefore of central importance - and so the robustness of a given coronagraphic stage with respect to the post-AO atmospheric residuals. Within this framework, the present paper describes the physical ingredients that are necessary to be modelized when designing a detailed numerical simulation study of this kind, together with a typical numerical tool used in this context. An example involving a very high-order AO system is given, a simple implementation of different coronagraphic concepts is exposed, and an illustrative preliminary result involving the high-order AO-correction stage coupled with the different coronagraphic devices implemented is shown.
© EAS, EDP Sciences, 2004
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.