CAOSP abstracts, Volume: 54, No.: 2, year: 2024

Author(s): Pribulla, T.; Vaňko, M.; Komžík, R.; Sivanič, P.
Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 54, no. 2, p. 43-46.
Date: 02/2024
Title: High-resolution échelle spectrograph at Skalnaté Pleso Observatory
Keyword(s): instrument, spectrograph
Pages: 43 -- 46
DOI: https://doi.org/10.31577/caosp.2024.54.2.43
NASA ADS Abstract Service: 2024CoSka..54b..43P
Citation:
License: This work is licensed under a Creative Commons Attribution 4.0 International License

Abstract: A clone of échelle spectrograph MUSICOS (MUlti-SIte COntinuous Spectroscopy) is mounted in the Nasmyth-Cassegrain focus of the 1.3m telescope at Skalnaté Pleso Observatory. The spectrograph is a cross-dispersed, bench-mounted, fiber-fed instrument giving a resolving power in the range of 25 000 to 38 500 (FWHM). Fifty-six orders cover the spectral range between 4250 and 7375 Å. The spectrograph is primarily used to observe novae, symbiotic stars, pulsating variables, binaries, and multiple stellar systems. The radial-velocity stability (100 -- 200 m s^-1) is sufficient to detect easily the orbital motion of hot Jupiters orbiting bright stars. In order to improve the spectrograph throughput and radial-velocity stability, several technical changes are planned in the near future.