Bibcode
Weber, Michael; Woche, Manfred; Sablowski, Daniel; Strassmeier, Klaus G.; Poppenhäger, Katja; Alvarado-Gómez, Julián. David; Bauer, Svend-Marian; Bellido-Tirado, Olga; Brynnel, Joar; Dionies, Frank; Füßlein, Christine; Giannone, Domenico; Järvinen, Arto; Järvinen, Silva; Kern, Jonathan; Önel, Hakan; Schwab, Christian; Weingrill, Jörg; Roth, Markus; Sigwarth, Michael; Chazelas, Bruno; Lanotte, Audrey; Santos Diaz, Pablo; Genolet, Ludovic; Sordet, Michael; Hughes, Ian; Lovis, Christophe; Amate, Manuel; Peñate Castro, José; Vega-Moreno, Afrodisio; Luís Simoes, Roberto M.; González-Hernández, Jonay I.; Zapatero Osorio, María. R.; Amado, Pedro J.; Calvo-Ortega, Rocío.; Varas González, Roberto; Gaessler, Wolfgang; Lehmitz, Michael; Kaminski, Adrian; Stilz, Ingo; Zanutta, A.; Di Marcantonio, P.; Marconi, A.; Scalera, M.; Aliverti, M.; Cabona, L.; Pariani, G.; Olivia, E.; Coretti, I.; Redaelli, E. M. A.
Referencia bibliográfica
Ground-based and Airborne Instrumentation for Astronomy X
Fecha de publicación:
7
2024
Número de citas
0
Número de citas referidas
0
Descripción
We present the design of the ANDES UBV module, the bluest spectrograph of the ANDES instrument. It is a fiber-fed high resolution, high stability spectrograph, which will be installed on the ELT-Nasmyth platform to minimize blue fibre losses from the focal plane to the spectrograph. In this paper we present the status of development of the spectrograph, its optical design, and auxiliary devices like exposure meter and leveling system, at the preliminary design stage. As stability is the prime design driver, a thermal enclosure is provided to keep temperature of the optical train stable at ambient conditions, and the pressure is kept constant at high vacuum level. The science, sky background and simultaneous calibration light is fed to the spectrographs via fiber bundles of 66 fibres, which are arranged in a straight row forming the spectrograph slit.