Milli-arcsecond Astrophysics with VSI, the VLTI Spectro-imager in the ELT Era

Malbet, F.; Buscher, D.; Weigelt, G.; Garcia, P.; Gai, M.; Lorenzetti, D.; Surdej, J.; Hron, J.; Neuhäuser, R.; Kern, P.; Jocou, L.; Berger, J.-P.; Absil, O.; Beckmann, U.; Corcione, L.; Duvert, G.; Filho, M.; Labeye, P.; Le Coarer, E.; Li Causi, G.; Lima, J.; Perraut, K.; Tatulli, E.; Thiébaut, E.; Young, J.; Zins, G.; Amorim, A.; Aringer, B.; Beckert, T.; Benisty, M.; Bonfils, X.; Chelli, A.; Chesneau, O.; Chiavassa, A.; Corradi, R.; De Becker, M.; Delboulbé, A.; Duchêne, G.; Forveille, T.; Haniff, C.; Herwats, E.; Hofmann, K.-H.; Le Bouquin, J.-B.; Ligori, S.; Loreggia, D.; Marconi, A.; Moitinho, A.; Nisini, B.; Petrucci, P.-O.; Rebordao, J.; Speziali, R.; Testi, L.; Vitali, F.
Bibliographical reference

Science with the VLT in the ELT Era, Astrophysics and Space Science Proceedings. ISBN 978-1-4020-9189-6. Springer Netherlands, 2009, p. 343

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2009
Number of authors
53
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0
Citations
0
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0
Description
Nowadays, compact sources relatively warm like surfaces of nearby stars, circumstellar environments of stars from early stages to the most evolved ones and surroundings of active galactic nuclei can be investigated at milli-arcsecond scales only with the VLT in its interferometric mode. We propose a spectro-imager, named VSI (VLTI spectro-imager), which is capable to probe these sources both over spatial and spectral scales in the near-infrared domain. This instrument will provide information complementary to what is obtained at the same time with ALMA at different wavelengths and the extreme large telescopes.