Browsing: VLTI

The Very Large Telescope Interferometer (VLTI) is a sophisticated astronomical facility located at the European Southern Observatory’s (ESO) Paranal Observatory in Chile. It combines the light from the four Unit Telescopes (each with an 8.2-meter diameter) and up to four Auxiliary Telescopes (each with a 1.8-meter diameter) of the Very Large Telescope (VLT) array to create an interferometer. This setup allows the VLTI to achieve extremely high angular resolution and sensitivity, equivalent to that of a telescope with a diameter of up to 200 meters. By utilizing techniques such as interferometry, the VLTI can observe fine details of astronomical objects, such as the surfaces of stars, the regions surrounding black holes, and the formation of exoplanets. The VLTI has been instrumental in advancing our understanding of the universe, enabling groundbreaking discoveries in stellar and planetary science, as well as contributing to the study of fundamental physics, such as testing the theories of general relativity and exploring the environments of supermassive black holes.