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arxiv: 0801.2694 · v1 · submitted 2008-01-17 · 🌌 astro-ph

Milli-arcsecond astrophysics with VSI, the VLTI spectro-imager in the ELT era

F. Malbet (LAOG) , D. Buscher (MRAO) , G. Weigelt , P. Garcia (CAUP) , M. Gai (OATo) , D. Lorenzetti (OAR) , J. Surdej (IAGL) , J. Hron (IfAW)
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R. Neuh\"auser (AIU) P. Kern (LAOG) L. Jocou (LAOG) J.-P. Berger (LAOG) O. Absil (LAOG) U. Beckmann L. Corcione (OATo) G. Duvert (LAOG JMMC) M. Filho (CAUP) P. Labeye (LETI) E. Le Coarer (LAOG) G. Li Causi (OAR) J. Lima (FCUL) K. Perraut (LAOG) E. Tatulli (LAOG JMMC Oaa) E. Thi\'ebaut (CRAL) J. Young (MRAO) G. Zins (LAOG) A. Amorim (FCUL) B. Aringer (IfAW) T. Beckert M. Benisty (LAOG) X. Bonfils (FCUL) A. Chelli (LAOG O. Chesneau (LG) A. Chiavassa (GRAAL) R. Corradi (IAC) M. De Becker (IAGL) A. Delboulb\'e (LAOG) G. Duch\^ene (LAOG) T. Forveille (LAOG) C. Haniff (MRAO) E. Herwats (LAOG IAGL) J.-B. Le Bouquin (ESO) S. Ligori (OATo) D. Loreggia (OAR) A. Marconi (OAA) A. Moitinho (FCUL) B. Nisini (OAR) P.-O. Petrucci (LAOG) J. Rebordao (INETI) R. Speziali (OAR) L. Testi (OAA ESO) F. Vitali (OAR)
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classification 🌌 astro-ph
keywords spectro-imagermilli-arcsecondscalessourcesstarsvltiactivealma
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Nowadays, compact sources 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.

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