ANDES, the high resolution spectrograph for the ELT: UBV Spectrograph Preliminary Design

Michael Weber*, Manfred Woche, Daniel Sablowski, Klaus G. Strassmeier, Katja Poppenhäger, Julián David Alvarado-Gómez, Svend-Marian Bauer, Olga Bellido-Tirado, Joar Brynnel, Frank Dionies, Christine Füßlein, Domenico Giannone, Arto Järvinen, Silva Järvinen, Jonathan Kern, Hakan Önel, Christian Schwab, Jörg Weingrill, Markus Roth, Michael SigwarthBruno Chazelas, Audrey Lanotte, Pablo Santos Diaz, Ludovic Genolet, Michael Sordet, Ian Hughes, Christophe Lovis, Manuel Amate, José Peñate Castro, Afrodisio Vega Moreno, Roberto M. Luís Simoes, Jonay I. González Hernández, María R. Zapatero, Pedro J. Amado, Rocío Calvo Ortega, Roberto Varas González, Wolfgang Gaessler, Michael Lehmitz, Adrian Kaminski, Ingo Stilz, A. Zanutta, P. Di Marcantonio, A. Marconi, M. Scalera, M. Aliverti, L. Cabona, G. Pariani, E. Oliva, I. Coretti, E. M. A. Redaelli

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationGround-based and Airborne Instrumentation for Astronomy X
EditorsJulia J. Bryant, Kentaro Motohara, Joël R. Vernet
Place of PublicationBellingham, Washington
PublisherSPIE
Pages130964A-1-130964A-10
Number of pages10
ISBN (Electronic)9781510675162
ISBN (Print)9781510675155
DOIs
Publication statusPublished - 2024
EventGround-Based and Airborne Instrumentation for Astronomy X 2024 - Yokohama, Japan
Duration: 16 Jun 202421 Jun 2024

Publication series

NameProceedings of SPIE
Volume13096
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceGround-Based and Airborne Instrumentation for Astronomy X 2024
Country/TerritoryJapan
CityYokohama
Period16/06/2421/06/24

Keywords

  • Instrumentation: spectrographs
  • Techniques: radial velocities
  • Techniques: spectroscopic

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