1. RISTRETTO: seven spaxel single mode spectrograph design
- Author
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Chazelas, Bruno, Lovis, Christophe, Blind, Nicolas, Genolet, Ludovic, Hughes, Ian, Sordet, Michael, Schnell, Robin, Carvalho, Anthony, and Bugatti, Maddalena
- Subjects
FOS: Physical sciences ,Astrophysics - Instrumentation and Methods for Astrophysics ,Instrumentation and Methods for Astrophysics (astro-ph.IM) - Abstract
The RISTRETTO project is aiming to build an instrument that will detect the reflected light from close-by exoplanet. It is a two stage instrument: An extreme AO system in the visible, followed by a seven spaxel single mode High resolution Spectrograph. In this paper we present the design of this spectrograph: a classical echelle spectrograph fed with single mode fibers. Standard single mode fibers have been chosen and are forming a long tilted slit in order to have the right order spacing on the detector. The instrument will be under vacuum and thermally controlled in order to make it stable., Comment: 7 pages, 7 figures, SPIE Astronomical Telescope and Instrumentation 2022, conference : Ground-based and Airborne Instrumentation for Astronomy IX (12184)
- Published
- 2022