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

2024/06/26 by Bruno Chazelas, Chazelas, Bruno, Y. Ivanisenko +90
Engineering · Physics and Astronomy · #Astronomy and Astrophysical Research #FOS: Physical sciences #Instrumentation and Methods for Astrophysics (astro-ph.IM) #Particle Accelerators and Free-Electron Lasers #Particle accelerators and beam dynamics

paper · pdf · doi:10.48550/arxiv.2406.18317

openalex publication_date 2024/06/26 · openalex created_date 2024/06/28 · openalex updated_date 2026/07/28

Abstract

We present here the preliminary design of the RIZ module, one of the visible spectrographs of the ANDES instrument 1. It is a fiber-fed high-resolution, high-stability spectrograph. Its design follows the guidelines of successful predecessors such as HARPS and ESPRESSO. In this paper we present the status of the spectrograph at the preliminary design stage. The spectrograph will be a warm, vacuum-operated, thermally controlled and fiber-fed echelle spectrograph. Following the phase A design, the huge etendue of the telescope will be reformed in the instrument with a long slit made of smaller fibers. We discuss the system design of the spectrographs system.

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