The CUBES science case
Journal
Date Issued
2023
Author(s)
Evans, Chris
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Opitom, Cyrielle
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Alencar, Silvia H. P.
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Balashev, Sergei
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Barbuy, Beatriz
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Bastian, Nate
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Battino, Umberto
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Carter, Brad
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Vaz Castilho, Bruno
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Christlieb, Norbert
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Cooke, Ryan
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Cunha, Katia
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da Silva, André R.
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D'ELIA, Valerio
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De Cia, Annalisa
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De Silva, Gayandhi
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Ernandes, Heitor
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Fitzsimmons, Alan
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Gänsicke, Boris T.
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Giribaldi, Riano E.
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Hansen, Camilla Juul
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Marcolino, Wagner
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Noterdaeme, Pasquier
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Pereira, Claudio
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Pilecki, Bogumil
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Quirrenbach, Andreas
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Rossi, Silvia
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Smiljanic, Rodolfo
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Snodgrass, Colin
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Stürmer, Julian
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Trost, Andrea
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Wright, Duncan
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Zafar, Tayyaba
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.
Volume
55
Issue
1
Start page
1
Issn Identifier
0922-6435
Ads BibCode
2023ExA....55....1E
Rights
open.access
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