The CUBES science case

Evans, C. J.; Cristiani, S.; Opitom, Cyrielle; Cescutti, G.; D’Odorico, V.; Alcalá, J. M.; Alencar, S. H. P.; Balashev, S. A.; Barbuy, B.; Bastian, Nate; Battino, U.; Cambianica, Pamela; Carini, R.; Carter, Brad; Cassisi, S.; Castilho, Bruno V.; Christlieb, N.; Cooke, Ryan; Covino, S.; Cremonese, Gabriele; Cunha, Kátia; Silva, André Romero da; D’Elia, V.; De, A.; Silva, Gayandhi De; Diaz, Marcos P.; Marcantonio, P. Di; Ernandes, H.; Fitzsimmons, A.; Franchini, M.; Gänsicke, B. T.; Genoni, Matteo; Giribaldi, Riano E.; Grazian, A.; Hansen, C. J.; Forgia, Fiorangela La; Lazzarin, M.; Marcolino, W. L. F.; Marconi, M.; Migliorini, A.; Noterdaeme, P.; Pereira, C. B.; Pilecki, B.; Quirrenbach, A.; Randich, S.; Rossi, Silvia; Smiljanić, R.; Snodgrass, C.; Stürmer, Julian; Trost, Andrea; Vanzella, E.; Ventura, P.; Wright, Duncan; Zafar, T.

doi:10.1007/s10686-022-09864-7

Cited by 2 publications

(2 citation statements)

References 183 publications

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“…2. 4 The VLT/ELT gateway CUBES will be one of the first instruments to adopt ELT-SW framework and standards, which will be used to develop and control all the future ESO/ELT instruments. But the CUBES instrument operates in a VLT environment (Paranal observatory), hence the communications between CUBES and its environment needs to be mediated by a dedicated software component, dubbed VLT / ELT gateway.…”

Section: Templatesmentioning

confidence: 99%

“…The ETC modelling approach is coherent to that developed by the E2E simulator ( § 6) as confirmed by the several and careful comparisons between the E2E and ETC for several reference input configurations. The reliable computation of SNR λ in a variety of observing conditions, has provided a valuable tool for the astronomical community to explore the wide range of science cases that CUBES aims to address (see [4]).…”

Section: Exposure Time Calculator (Etc)mentioning

confidence: 99%

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CUBES and its software ecosystem: instrument simulation, control, and data processing

Calderone¹,

Cirami²,

Cupani³

et al. 2022

Software and Cyberinfrastructure for Astronomy VII

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CUBES (Cassegrain U-Band Efficient Spectrograph) is the recently approved high-efficiency VLT spectrograph aimed to observe the sky in the UV ground-based region (305-400 nm) with a high-resolution mode (∼ 20K) and a low-resolution mode (∼ 5K). In this paper we will briefly describe the requirements and the design of the several software packages involved in the project, namely the instrument control software, the exposure time calculator, the end-to-end simulator, and the data reduction software suite. We will discuss how the above mentioned blocks cooperate to build up a "software ecosystem" for the CUBES instrument, and to support the users from the proposal preparation to the science-grade data products.

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Section: Templatesmentioning

confidence: 99%

Section: Exposure Time Calculator (Etc)mentioning

confidence: 99%

CUBES and its software ecosystem: instrument simulation, control, and data processing

Calderone¹,

Cirami²,

Cupani³

et al. 2022

Software and Cyberinfrastructure for Astronomy VII

Self Cite

View full text Add to dashboard Cite

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A new precise determination of the primordial abundance of deuterium: measurement in the metal-poor sub-DLA system at z = 3.42 towards quasar J 1332+0052

Kislitsyn,

Balashev,

Murphy

et al. 2024

Monthly Notices of the Royal Astronomical Society

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The theory of Big Bang nucleosynthesis, coupled with an estimate of the primordial deuterium abundance (D/H)pr, offers insights into the baryon density of the Universe. Independently, the baryon density can be constrained during a different cosmological era through the analysis of cosmic microwave background (CMB) anisotropy. The comparison of these estimates serves as a rigorous test for the self-consistency of the Standard Cosmological Model and stands as a potent tool in the quest for new physics beyond the Standard Model of Particle Physics. For a meaningful comparison, a clear understanding of the various systematic errors affecting deuterium measurements is crucial. Given the limited number of D/H measurements, each new estimate carries significant weight. This study presents the detection of D i absorption lines in a metal-poor sub-Damped Lyman-α system ($\rm [O/H]=-1.71\pm 0.02$, log N(H i) = 19.304 ± 0.004) at zabs = 3.42 towards the quasar SDSS J133254.51+005250.6. Through simultaneous fitting of H i and D i Lyman-series lines, as well as low-ionization metal lines, observed at high spectral resolution and high signal-to-noise using VLT/UVES and Keck/HIRES, we derive log (D i/H i) = −4.622 ± 0.014, accounting for statistical and systematic uncertainties of 0.008 dex and 0.012 dex, respectively. Thanks to negligible ionization corrections and minimal deuterium astration at low metallicity, this D/H ratio provides a robust measurement of the primordial deuterium abundance, consistent and competitive with previous works. Incorporating all prior measurements, the best estimate of the primordial deuterium abundance is constrained as: (D/H)pr = (2.533 ± 0.024) × 10−5. This represents a 5% improvement in precision over previous studies and reveals a moderate tension with the expectation from the Standard Model (≈2.2σ). This discrepancy underscores the importance of further measurements in the pursuit of new physics.

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The CUBES science case

Cited by 2 publications

References 183 publications

CUBES and its software ecosystem: instrument simulation, control, and data processing

CUBES and its software ecosystem: instrument simulation, control, and data processing

A new precise determination of the primordial abundance of deuterium: measurement in the metal-poor sub-DLA system at z = 3.42 towards quasar J 1332+0052

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