The BINGO project - II. Instrument description - Archive ouverte HAL Access content directly
Journal Articles Astron.Astrophys. Year : 2022

The BINGO project - II. Instrument description

, , , , , , , , , , , , , , , , , , , , , , , (1, 2) , , , , , , , (3) , , , , , , , , , , , , ,
1
2
3
Carlos A. Wuensche
  • Function : Author
Thyrso Villela
  • Function : Author
Elcio Abdalla
  • Function : Author
Vincenzo Liccardo
  • Function : Author
Frederico Vieira
  • Function : Author
Ian Browne
  • Function : Author
Michael W. Peel
  • Function : Author
Christopher Radcliffe
  • Function : Author
Filipe B. Abdalla
  • Function : Author
Alessandro Marins
  • Function : Author
Luciano Barosi
  • Function : Author
Francisco A. Brito
  • Function : Author
Amilcar R. Queiroz
  • Function : Author
Bin Wang
  • Function : Author
  • PersonId : 758908
  • IdRef : 195514718
Andre A. Costa
  • Function : Author
Elisa G.M. Ferreira
  • Function : Author
Karin S.F. Fornazier
  • Function : Author
Ricardo G. Landim
  • Function : Author
Camila P. Novaes
  • Function : Author
Larissa Santos
  • Function : Author
Marcelo V. dos Santos
  • Function : Author
Jiajun Zhang
  • Function : Author
Tianyue Chen
  • Function : Author
Clive Dickinson
  • Function : Author
Giancarlo de Gasperis
  • Function : Author
Edmar C. Gurjão
  • Function : Author
Stuart Harper
  • Function : Author
Yin-Zhe Ma
Telmo Machado
  • Function : Author
Eduardo J. de Mericia
  • Function : Author
Christian Monstein
  • Function : Author
Pablo Motta
  • Function : Author
Carlos H.N. Otobone
  • Function : Author
Luiz A. Reitano
  • Function : Author
Mathieu Remazeilles
  • Function : Author
Sambit Roychowdhury
  • Function : Author
João R.L. Santos
  • Function : Author
Alexandre J.R. Serres
  • Function : Author
Andreia P. Souza
  • Function : Author
Cesar Strauss
  • Function : Author
Jordany Vieira
  • Function : Author
Haiguang Xu
  • Function : Author

Abstract

Context. The measurement of diffuse 21-cm radiation from the hyperfine transition of neutral hydrogen (H I signal) in different redshifts is an important tool for modern cosmology. However, detecting this faint signal with non-cryogenic receivers in single-dish telescopes is a challenging task. The BINGO (Baryon Acoustic Oscillations from Integrated Neutral Gas Observations) radio telescope is an instrument designed to detect baryonic acoustic oscillations (BAOs) in the cosmological H I signal, in the redshift interval 0.127 ≤ z ≤ 0.449.Aims. This paper describes the BINGO radio telescope, including the current status of the optics, receiver, observational strategy, calibration, and the site.Methods. BINGO has been carefully designed to minimize systematics, being a transit instrument with no moving dishes and 28 horns operating in the frequency range 980 ≤ ν ≤ 1260 MHz. Comprehensive laboratory tests were conducted for many of the BINGO subsystems and the prototypes of the receiver chain, horn, polarizer, magic tees, and transitions have been successfully tested between 2018–2020. The survey was designed to cover ∼13% of the sky, with the primary mirror pointing at declination δ = −15°. The telescope will see an instantaneous declination strip of 14.75°.Results. The results of the prototype tests closely meet those obtained during the modeling process, suggesting BINGO will perform according to our expectations. After one year of observations with a 60% duty cycle and 28 horns, BINGO should achieve an expected sensitivity of 102 μK per 9.33 MHz frequency channel, one polarization, and be able to measure the H I power spectrum in a competitive time frame.Key words: instrumentation: detectors / methods: observational
Fichier principal
Vignette du fichier
aa39962-20.pdf (10.02 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-03338501 , version 1 (11-08-2022)

Identifiers

Cite

Carlos A. Wuensche, Thyrso Villela, Elcio Abdalla, Vincenzo Liccardo, Frederico Vieira, et al.. The BINGO project - II. Instrument description. Astron.Astrophys., 2022, 664, pp.A15. ⟨10.1051/0004-6361/202039962⟩. ⟨hal-03338501⟩
109 View
1 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More