MOSES: the MONET star and exoplanet spectrograph

S. Schäfer; L. Schmidt; H. Anwand-Heerwart; D. Jones; A. Reiners

doi:10.1117/12.3017959

18 July 2024 MOSES: the MONET star and exoplanet spectrograph

S. Schäfer, L. Schmidt, H. Anwand-Heerwart, D. Jones, A. Reiners

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 1309689 (2024) https://doi.org/10.1117/12.3017959
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

We introduce MOSES, the new High-Resolution Echelle Spectrograph designated for the 1.2m MONET telescope at McDonald Observatory, Texas, USA. The science drivers are radial velocity experiments and activity monitoring in Sun-like stars. Set for installation in the final quarter of 2025, MOSES features a white pupil design and aims for a spectral resolution greater than 80,000 over the 380-680 nm wavelength range. It incorporates a pixel sampling rate of 3.5 and uses two fibers to facilitate a simultaneous calibration mode. Encased within a vacuum vessel and operating in a temperature-stabilized environment, MOSES is expected to achieve a radial velocity precision below 2 m/s, aided by a Fabry-Pérot etalon calibration system. This paper outlines the implementation of the fiber injection unit, the optical layout of the spectrograph, and the present status of the various subsystems under development.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

S. Schäfer, L. Schmidt, H. Anwand-Heerwart, D. Jones, and A. Reiners "MOSES: the MONET star and exoplanet spectrograph", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 1309689 (18 July 2024); https://doi.org/10.1117/12.3017959

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