Issue |
EAS Publications Series
Volume 8, 2003
Astronomy with High Contrast Imaging
|
|
---|---|---|
Page(s) | 65 - 78 | |
DOI | https://doi.org/10.1051/eas:2003052 | |
Published online | 28 May 2003 |
Claude Aime and Rémi Soummer (eds)
EAS Publications Series, 8 (2003) 65-78
Shared constraints and specific characters in Very High Dynamics Imaging
Observatoire de la Côte d'Azur, Av. Copernic, 06130 Grasse, France
Corresponding author: rabbia@obs-azur.fr
Very High Dynamics Imaging rounds up various techniques that can be used to study the close environment of a source which flux, comparatively very large, prevents to see the morphological features immediately neighbouring the source. Several instrumental approaches have been devised in this purpose, among which apodisation, mask coronagraphy and nulling techniques. In view of applying them to various scientific programs, both shared constraints and specific features of the approaches have to be identified. This is the subject of this paper, which also recalls basics principles. A new concept (EvWaCo) achieving coronagraphy by using evanescent waves is briefly outlined.
© EAS, EDP Sciences, 2003