Maunakea Spectroscopic Explorer Low Moderate Resolution Spectrograph Conceptual Design
Patrick Caillier, Will Saunders, Pierre-Henri Carton, Florence, Laurent, Jean-Emmanuel Migniau, Arlette P\'econtal, Johan Richard, Christophe, Y\`eche

TL;DR
The paper presents the conceptual design of the Low Moderate Resolution spectrograph for the Maunakea Spectroscopic Explorer, detailing its optical, mechanical, and performance specifications for a large-scale astronomical survey instrument.
Contribution
It introduces the detailed conceptual design of the LMR spectrograph for MSE, including optical and mechanical aspects and expected performance metrics.
Findings
Design achieves R>2500 and R>5000 resolutions in optical range
Optical and thermal performance targets are met in preliminary assessments
The instrument supports wide wavelength coverage from 360 to 1300 nm
Abstract
The Maunakea Spectroscopic Explorer (MSE) Project is a planned replacement for the existing 3.6-m Canada France Hawaii Telescope (CFHT) into a 10-m class dedicated wide field highly multiplexed fibre fed spectroscopic facility. MSE seeks to tackle basic science questions ranging from the origin of stars and stellar systems, Galaxy archaeology at early times, galaxy evolution across cosmic time, to cosmology and the nature of dark matter and dark energy. MSE will be a primary follow-up facility for many key future photometric and astrometric surveys, as well as a major component in the study of the multi-wavelength Universe. The MSE is based on a prime focus telescope concept which illuminate 3200 fibres or more. These fibres are feeding a Low Moderate Resolution (LMR) spectrograph and a High Resolution (HR). The LMR will provide 2 resolution modes at R>2500 and R>5000 on a wavelength…
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Taxonomy
TopicsAstronomy and Astrophysical Research · Semiconductor Lasers and Optical Devices · Adaptive optics and wavefront sensing
