The BINGO Project II: Instrument Description

Wuensche, Carlos A.; Villela, Thyrso; Abdalla, Elcio; Liccardo, Vincenzo; Vieira, Frederico; Browne, Ian; Peel, Michael W.; Radcliffe, Christopher; Abdalla, Filipe B.; Marins, Alessandro; Barosi, Luciano; Brito, Francisco A.; Queiroz, Amilcar R.; Wang, Bin; Costa, Andre A.; Ferreira, Elisa G. M.; Fornazier, Karin S. F.; Landim, Ricardo G.; Novaes, Camila P.; Santos, Larissa; Santos, Marcelo V. dos; Zhang, Jiajun; Chen, Tianyue; Delabrouille, Jacques; Dickinson, Clive; de Gasperis, Giancarlo; Gurjão, Edmar C.; Harper, Stuart; Ma, Yin-Zhe; Machado, Telmo; Maffei, Bruno; de Mericia, Eduardo J.; Monstein, Christian; Motta, Pablo; Otobone, Carlos H. N.; Reitano, Luiz A.; Remazeilles, Mathieu; Roychowdhury, Sambit; Santos, João R. L.; Serres, Alexandre J. R.; Souza, Andreia P.; Strauss, Cesar; Vieira, Jordany; Xu, Haiguang

doi:10.48550/arxiv.2107.01634

Cited by 7 publications

(20 citation statements)

References 18 publications

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“…[31,64,65] for recent reviews). These correlations have been successfully detected using galaxies, quasars and the Lyman-↵ forest [69][70][71][72][73]. In fact, due to the large scales involved and the differential nature of the measurement (one or more peaks on top of a smooth background signal), BAOs are among the most robust measurements in cosmology.…”

Section: Instrumental Concepts and Challengesmentioning

confidence: 99%

“…Figure 4, adapted from 65 , shows the stacked signals as a function of the frequency shift, for ELG's (Emission Line Galaxies), LRG's (Luminous Red Galaxies) and quasars (QSO), together with the best fit model. BINGO (Baryon acoustic oscillations from Integrated Neutral Gas Observations) is a single dish instrument being built in Brazil 71 . It uses a off-axis 1600m 2 , D ∼ 50m primary reflector which illuminates a focal plane equipped with 28 horns through a secondary mirror.…”

Section: Courtesy Of Richard Shaw With Chime Permissionmentioning

confidence: 99%

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Current status and future of cosmology with 21cm Intensity Mapping

Ansari¹

2022

Preprint

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21cm Intensity Mapping (IM) has been proposed about 15 years ago as a cost effective method to carry out cosmological surveys and to map the 3D distribution of matter in the universe, over a large range of post EoR redshifts, from z=0 to z=6. Since then a number of pathfinder instruments have been built, such as CHIME or Tianlai. Several other ones will be commissioned in the next few years (HIRAX, CHORD, BINGO), while even larger arrays, with several thousand antennae are being considered for the next generation experiments. We will briefly review the 21cm cosmology of the Epoch of Reionisation (EoR), and we will then focus on IM for late time cosmology. After presenting some of the promises of this technique to constrain the cosmological model, dark energy and inflation, we will review some of the instrumental and scientific challenges of IM surveys. The second part of the paper presents an overview of the ongoing and future experiments, as well as recent results by GBT, CHIME and Tianlai.

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Section: Instrumental Concepts and Challengesmentioning

confidence: 99%

Section: Courtesy Of Richard Shaw With Chime Permissionmentioning

confidence: 99%

Current status and future of cosmology with 21cm Intensity Mapping

Ansari¹

2022

Preprint

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“…BINGO: The BINGO project [63], to be built in eastern Brazil, is a special-purpose radio telescope. It aims to detect the BAO in H i power spectrum, in the redshift interval 0.13 < z < 0.45 [21,34,64,65]. The latest design of BINGO is a dual-mirror compact antenna telescope with a 40 m primary mirror and an offset focus, which has a receiver array containing 50-60 feed horns, with a focal length of 90 m.…”

Section: B Experimental Configurationsmentioning

confidence: 99%

Prospects for measuring dark energy with 21 cm intensity mapping experiments

Wu,

Zhang

2021

Preprint

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Using the 21 cm intensity mapping (IM) technique can efficiently perform large-scale neutral hydrogen (H i) survey, and thus can detect the baryon acoustic oscillation (BAO) signals in the large-scale H i distribution. This method has great potential for measuring dark-energy parameters. Some 21 cm IM experiments have been proposed and performed, of which the typical ones include BINGO, FAST, SKA1, HIRAX, CHIME, and Tianlai. In this work, we make a forecast for these typical 21 cm IM experiments in their capability of measuring parameters of dark energy. We find that the interferometers have great advantages in constraining cosmological parameters. In particular, the Tianlai cylinder array alone can achieve the standard of precision cosmology for the ΛCDM model. However, for constraining dynamical dark energy, we find that SKA1-MID performs very well (using its single-dish mode). In addition, we show that the simulated 21 cm IM data can break the parameter degeneracies inherent in the CMB data, and CMB+SKA1 offers σ(w) = 0.013 in the wCDM model, and σ(w0) = 0.080 and σ(wa) = 0.25 in the CPL model. Compared with CMB+BAO+SN, Tianlai can provide tighter constraints in ΛCDM and wCDM, but looser constraints (tighter than CMB+BAO) in CPL, and the combination CMB+BAO+SN+Tianlai gives σ(w) = 0.013, σ(w0) = 0.055, and σ(wa) = 0.13. Finally, we find that the residual foreground contamination amplitude has a considerable impact on constraint results. We show that in the future 21 cm IM experiments will provide a powerful probe for exploring the nature of dark energy.

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“…We also outline the structure of the project as a whole. The companion papers II through VII show the instrument (Wuensche et al 2021b), the optics design (Abdalla et al 2021), the mission simulation (Liccardo et al 2021), eabdalla@usp.br the component separation analysis (Fornazier et al 2021), the mock (Zhang et al 2021), and forecasts on several models (Costa et al 2021), respectively. The BINGO concept was presented in Battye et al (2013) with later updates presented in Dickinson (2014), Bigot-Sazy et al (2015), Battye et al (2016), andWuensche (2019).…”

Section: Introductionmentioning

confidence: 99%

“…The BINGO project is a single dish (strictly, it revolves around a single dish telescope, see paper II (Wuensche et al 2021b) and paper III (Abdalla et al 2021) for further details) radio telescope aiming at the observation of the 21-cm line, corresponding to a hyperfine interaction of the atomic hydrogen. It will survey a sky area of 6000 square degrees in a redshift range from 0.127 to 0.449 (corresponding to a frequency span of 980 to 1260 MHz) with an angular resolution of ≈ 40 arcmin.…”

Section: Introductionmentioning

confidence: 99%

The BINGO project

Abdalla¹,

Ferreira²,

Landim³

et al. 2022

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Context. Observations of the redshifted 21-cm line of neutral hydrogen (Hi) are a new and powerful window of observation that offers us the possibility to map the spatial distribution of cosmic Hi and learn about cosmology. Baryon Acoustic Oscillations from Integrated Neutral Gas Observations (BINGO) is a new unique radio telescope designed to be one of the first to probe baryon acoustic oscillations (BAO) at radio frequencies.Aims. BINGO has two science goals: cosmology and astrophysics. Cosmology is the main science goal and the driver for BINGO's design and strategy. The key of BINGO is to detect the low redshift BAO to put strong constraints on the dark sector models and test the ΛCDM (cold dark matter) model. Given the versatility of the BINGO telescope, a secondary goal is astrophysics, where BINGO can help discover and study fast radio bursts (FRB) and other transients, as well as study Galactic and extragalactic science. In this paper, we introduce the latest progress of the BINGO project, its science goals, describing the scientific potential of the project for each goal and the new developments obtained by the collaboration. Methods. BINGO is a single dish transit telescope that will measure the BAO at low-z by making a 3D map of the Hi distribution through the technique of intensity mapping over a large area of the sky. In order to achieve the project's goals, a science strategy and a specific pipeline for cleaning and analyzing the produced maps and mock maps was developed by the BINGO team, which we generally summarize here. Results. We introduce the BINGO project and its science goals and give a general summary of recent developments in construction, science potential, and pipeline development obtained by the BINGO collaboration in the past few years. We show that BINGO will be able to obtain competitive constraints for the dark sector. It also has the potential to discover several FRBs in the southern hemisphere. The capacity of BINGO in obtaining information from 21-cm is also tested in the pipeline introduced here. Following these developments, the construction and observational strategies of BINGO have been defined. Conclusions. There is still no measurement of the BAO in radio, and studying cosmology in this new window of observations is one of the most promising advances in the field. The BINGO project is a radio telescope that has the goal to be one of the first to perform this measurement and it is currently being built in the northeast of Brazil. This paper is the first of a series of papers that describe in detail each part of the development of the BINGO project.

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The BINGO Project II: Instrument Description

Cited by 7 publications

References 18 publications

Current status and future of cosmology with 21cm Intensity Mapping

Current status and future of cosmology with 21cm Intensity Mapping

Prospects for measuring dark energy with 21 cm intensity mapping experiments

The BINGO project

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