A high resolution multi-object spectrograph for the VLT: a pre-concept design

Brucalassi, Anna; Tozzi, Andrea; Oliva, Ernesto; Gonzalez, Oscar; Randich, Sofia; De Silva, Gayandhi; Tolstoy, Eline; Bianco, Andrea; Genoni, Matteo; Pariani, Giorgio; Lawrence, Jon; Bensby, Thomas; Hill, Vanessa; Jeffries, Rob; Lagarde, Nadege; Magrini, Laura; Smiljanic, Rodolfo; Skuladottir, Asa

Abstract

Following the idea originally proposed during the ESO-Workshop The Very Large Telescope in 2030, the concept of a high resolution spectrograph for the VLT has been further explored, both for the science and technological aspects. Such an instrument will fill a gap in capabilities amongst the landscape of future instrumentation planned for the next decade. Its key characteristic will be high spectral resolution (R = 60000-80000) with multi-object (50-100) capabilities and, possibly, a stability that would provide high radial velocity precision (∼10m/s). In this work, we describe the science cases and driving science requirements for the instrument. Furthermore we will present some design solutions and technical options considered to meet these requirements.

Citation

Brucalassi, A., Tozzi, A., Oliva, E., Gonzalez, O., Randich, S., De Silva, G., …Skuladottir, A. (2022). A high resolution multi-object spectrograph for the VLT: a pre-concept design. Proceedings of SPIE, 12184, Article ARTN 121841A. https://doi.org/10.1117/12.2629654

• Journal Article Type: Article
• Acceptance Date: Aug 29, 2022
• Online Publication Date: Aug 29, 2022
• Publication Date: Aug 29, 2022
• Deposit Date: Jun 5, 2023
• Journal: GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY IX
• Print ISSN: 0277-786X
• Publisher: Society of Photo-optical Instrumentation Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 12184
• Article Number: ARTN 121841A
• ISBN: 978-1-5106-5349-8
• DOI: https://doi.org/10.1117/12.2629654