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The CUBES science case

Abstract : We introduce the scientific motivations for the development of the Cassegrain U-Band Efficient Spectrograph (CUBES) that is now in construction for the Very Large Telescope. The assembled cases span a broad range of contemporary topics across Solar System, Galactic and extragalactic astronomy, where observations are limited by the performance of current ground-based spectrographs shortwards of 400 nm. A brief background to each case is presented and specific technical requirements on the instrument design that flow-down from each case are identified. These were used as inputs to the CUBES design, that will provide a factor of ten gain in efficiency for astronomical spectroscopy over 300-405 nm, at resolving powers of R ∼ 24,000 and ∼7,000. We include performance estimates that demonstrate the ability of CUBES to observe sources that are up to three magnitudes fainter than currently possible at ground-ultraviolet wavelengths, and we place its predicted performance in the context of existing facillities.
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https://hal-insu.archives-ouvertes.fr/insu-03839636
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Submitted on : Friday, November 4, 2022 - 3:01:21 PM
Last modification on : Saturday, November 5, 2022 - 3:55:17 AM

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Distributed under a Creative Commons Attribution 4.0 International License

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Chris Evans, Stefano Cristiani, Cyrielle Opitom, Gabriele Cescutti, Valentina d'Odorico, et al.. The CUBES science case. Experimental Astronomy, 2022, ⟨10.1007/s10686-022-09864-7⟩. ⟨insu-03839636⟩

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