Summary: SF2A 2002
F. Combes and D. Barret (eds)
HIGH ANGULAR RESOLUTION IN 20102020: POSSIBLE
POSTVLT/VLTI INSTRUMENTS AND R&D PRIORITIES
Arnold, L. 1 , Lagrange, A.M. 2 , Mourard, D. 3 , Riaud, P. 4 , Ferrari, M. 5 ,
Gillet, S. 6 , Kern, P. 7 , Koechlin, L. 8 , Labeyrie, A. 9 , Lardi‘ere, O. 10 ,
Malbet, F. 11 , Perrin, G. 12 , Rousset, G. 13 and Tallon, M. 14
Abstract. Possible future instruments, ground or spacebased, can be
split into three main categories: Extremely large filled aperture telescopes,
diluted interferometric arrays for direct imaging, and diluted interferometric
arrays for aperture synthesis imaging. These concepts have been compared
in terms of observing capabilities, performances and technological issues.
Here we emphasize the R&D priorities.
This work propose to identify the di#erent categories of possible postVLT/VLTI
instruments that will be available in 2010 and after, and to compare them in terms
of observing capabilities and performances and of technological issues (see papers
Arnold et al 2001, Arnold 2001, Arnold et al 2002). We give the list of scientific
criteria that have been used to compare the main categories of future instruments.
This paper emphasizes the identified R&D priorities.