Document Astronomy with High Contrast Imaging II
C. Aime and R. Soummer (eds)
EAS Publications Series, 12 (2004) 299-309
DOI: 10.1051/eas:2004044
Coronagraphic imaging on the VLTI with VIDA
O. LardièreINAF-Osservatorio Astrofisico di Arcetri, 50125 Firenze
Abstract
In a few years, the VLTI will be able to combine light from 4 to 8
telescopes equipped with adaptive optics. In order to exploit the
full VLTI infrastructure, a second generation instrument, based on
the densified pupil concept (VIDA), has been proposed for very
high resolution direct imaging and coronagraphy. This paper
presents some possible coronagraphic devices providing a total
star extinction on the VLTI when there are no phase errors.
Lastly, the expected performances considering cophasing and
adaptive optics residual errors are also presented.
© EAS, EDP Sciences 2004