Conceptual Opto-Mechanical design of SHARP: a near-infrared multi-mode spectrograph conceived for the next-generation telescopes
H. Mahmoodzadeh, P. Saracco, P. Conconi, B- Saggin, D- Scaccabarozzi, I. Di Antonio, M. Riva, E. Molinari, C. Arcidiacono, I. Arosio, E. Cascone, V. Cianniello, V. De Caprio, G. Di Rico, B. Di Francesco, C- Eredia, P. Franzetti, M. Fumana, D. Greggio, E. Portaluri, M. Scalera
公開日: 2025/9/8
Abstract
The next generation of Extremely Large Telescopes (ELTs), with their wide apertures and advanced Multi-Conjugate Adaptive Optics (MCAO) systems, will provide unprecedented sharp and deep observations, even surpassing the capabilities of James Webb Space Telescope (JWST). SHARP, a near-infrared (0.95-2.45 {\mu}m) spectrograph, is designed to optimally exploit the collecting area and angular resolution of these forthcoming ELTs, and specifically optimized for the MCAO unit MORFEO at the ELT. SHARP includes two main units: NEXUS, a Multi-Object Spectrograph (MOS), and VESPER, a multi-Integral Field Unit. This paper outlines the opto-mechanical design of SHARP based on the scientific requirements of the project. The optical design is engineered to meet project specifications, featuring a compact mechanical structure that minimizes the required cryogenic power while ensuring ease of access for maintenance and straightforward assembly procedures.