Oral comunication
A. Cabral, M. Abreu, J. Coelho, P. Santos, A. Oliveira, M. A. Monteiro, D. Castro Alves, N. C. Santos, S. G. Sousa, P. Figueira, G. Avila, M. Riva, D. Megevand, F. Pepe
Abstract
ESPRESSO is a fibre-fed, cross-dispersed, high-resolution, echelle spectrograph developed to fully exploit the European Southern Observatory VLT (Very Large Telescope), and it was open to the astronomical community at the end of 2018. This spectrograph was installed at the Combined Coudé Laboratory (CCL) of the VLT, fed by four Coudé Trains, which bring the light to the CCL from the Nasmyth platforms of the four 8.2-metre Unit Telescopes. With all four Telescopes combining their light-collecting power to feed a single instrument, the ESPRESSO Coudé Train effectively transforms the VLT into the largest optical telescope in the world in terms of collecting area. The Coudé Train allows the spectrograph to either collect the light from up to all four Unit Telescopes together, or alternatively receive light from any one of the telescopes independently, allowing for more flexible usage of observing time. In this talk we present the ESPRESSO spectrograph and the Coudé Train subsystem that was implemented by a Portuguese Team.
XXIX Encontro Nacional de Estudantes de Astronomia
Lisboa, Portugal
2019 September
