Spatial interferometry with the European VLT

Details Spatial interferometry with the European VLT Spatial interferometry with the European VLT

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spie..628..261m&link_type=abstract

IN: Advanced technology optical telescopes III; Proceedings of the Meeting, Tucson, AZ, Mar. 3-6, 1986 (A87-35201 15-89). Bellin

Physics

Optics

1

Angular Resolution, Infrared Interferometers, Linear Arrays, Telescopes, Adaptive Optics, Atmospheric Turbulence, Imaging Techniques, Optical Paths, Target Acquisition

Scientific paper

The array concept for ESO's Very Large Telescope (VLT) project opens the possibility of observations with very high angular resolution. The long baseline provides a resolution span from approximately 0.5 marcsec in the blue to about 30 marcsec at 20 microns wavelength. The realistic target for the interferometric operation is the IR range, from 5 to 20 microns, and later a gradual expansion to shorter wavelengths. In the interferometric mode, the gain of the 8-meter single apertures of the VLT is only given if adaptive optics are applied for a real-time partial or full phase compensation of the degradations due to atmospheric turbulence.

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