ANDES, the high-resolution spectrograph for the ELT: UBV spectrograph preliminary design

Bibcode
2024SPIE13096E..4AW
DOI
10.1117/12.3020025
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.
Bibliographical reference

Ground-based and Airborne Instrumentation for Astronomy X

Advertised on:
7
2024
Number of authors
50
IAC number of authors
5
Citations
0
Refereed citations
0
Description
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.
Type
Non-refereed

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