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

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

2008-01-17

arxiv.org/abs/0801.2694v1

Astronomy and Astrophysics

Astrophysics

8 pages. To be published in the proceedings of the ESO workshop "Science with the VLT in the ELT Era", held in Garching (Germa

Scientific paper

10.1007/978-1-4020-9190-2_57

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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