Bibcode
Peñate, J.; Gracia, F.; Allende Prieto, C.; Calvo, J.; Santana, S.
Referencia bibliográfica
Proceedings of the SPIE, Volume 9147, id. 91478J 8 pp. (2014).
Advertised on:
7
2014
Número de citas
3
Número de citas referidas
2
Descripción
The High Optical Resolution Spectrograph (HORS) is a proposed
high-resolution spectrograph for the 10-m Gran Telescopio Canarias (GTC)
based on components from UES, a spectrograph which was in use at the
4.2-m William Herschel Telescope (WHT) between 1992 and 2001. HORS is
designed as a cross-dispersed echelle spectrograph to observe in the
range 380-800 nm with a FWHM resolving power of about 50,000. HORS would
operate on the GTC as a general-purpose high-resolution spectrograph,
and it would serve as a test-bed for some of the technologies proposed
for ESPRESSO - an ultra-high stability spectrograph planned for the Very
Large Telescope (VLT) of the European Southern Observatory. The HORS
spectrograph will be placed in the Coudé room, where it can enjoy
excellent thermal and mechanical stability, fiber fed from the Nasmyth
focus, which is shared with OSIRIS. Inside the spectrograph, incoming
light will hit a small folder mirror before reaching the collimator.
After a second folder, the light will go through a set of three prisms
and an Echelle grating before entering the spectrograph camera and,
finally, reaching the detector. This manuscript contains a summary of
the whole process that has transformed UES into HORS, with all the
mechanical and optical modifications that have been introduced to reach
the final layout.