Bibcode
Fragoso-López, Ana B.; Rasilla, José Luis; Murray, Graham J.; Oliva, Ernesto; Harris, Robert J.; Haynes, Roger; Riva, Marco; Marconi, Alessandro
Referencia bibliográfica
Proceedings of the SPIE, Volume 10702, id. 107028S 15 pp. (2018).
Fecha de publicación:
7
2018
Número de citas
0
Número de citas referidas
0
Descripción
ELT-HIRES is the high resolution and ultra-stable Echelle spectrograph
for the ELT. It has been conceived as a modular instrument provided with
two independent spectrometers (the baseline design) and a possible
extension to four, each of them optimized to cover a fixed spectral
range. The role of the fibers is essential to provide the required
ultrastability. Placed at the Nasmyth focus of the ELT, the HIRES fiber
link transfers the light from the focal plane to the spectrographs. Each
observing modes will be use a unique and independent group of fibers
(bundle). The HIRES modular design makes it possible to have new
observing modes just with the addition, removal or change of the
specific bundles. From a functional point of view the HIRES fiber link
subsystem performs some other important tasks, such as dicing the field
of view, improving the system stability and providing a uniformly
illuminated slit for spectrographs. It is a key subsystem for the
instrument and represents a significant technological challenge. The
technical requirements, conceptual design and technologies to be used
are discussed in this paper. The current status of the subsystem, and
future plans are also addressed.