TY - JOUR
T1 - The BINGO project. IV. Simulations for mission performance assessment and preliminary component separation steps
AU - Liccardo, Vincenzo
AU - de Mericia, Eduardo J.
AU - Wuensche, Carlos A.
AU - Abdalla, Elcio
AU - Abdalla, Filipe B.
AU - Barosi, Luciano
AU - Brito, Francisco A.
AU - Queiroz, Amilcar
AU - Villela, Thyrso
AU - Peel, Michael W.
AU - Wang, Bin
AU - Costa, Andre A.
AU - Ferreira, Elisa G. M.
AU - Fornazier, Karin S. F.
AU - Novaes, Camila P.
AU - Santos, Larissa
AU - dos Santos, Marcelo V.
AU - Remazeilles, Mathieu
AU - Zhang, Jiajun
AU - Dickinson, Clive
AU - Harper, Stuart
AU - Landim, Ricardo G.
AU - Marins, Alessandro
AU - Vieira, Frederico
PY - 2022/8/1
Y1 - 2022/8/1
N2 - Aims: The large-scale distribution of neutral hydrogen (H I) in the Universe is luminous through its 21 cm emission. The goal of the Baryon Acoustic Oscillations from Integrated Neutral Gas Observations (BINGO) radio telescope is to detect baryon acoustic oscillations at radio frequencies through 21 cm intensity mapping (IM). The telescope will span the redshift range 0.127 < z < 0.449 with an instantaneous field-of-view of 14.75° ×6.0°. Methods: In this work we investigate different constructive and operational scenarios of the instrument by generating sky maps as they would be produced by the instrument. In doing this we use a set of end-to-end IM mission simulations. The maps will additionally be used to evaluate the efficiency of a component separation method (GNILC). Results: We have simulated the kind of data that would be produced in a single-dish IM experiment such as BINGO. According to the results obtained, we have optimized the focal plane design of the telescope. In addition, the application of the GNILC method on simulated data shows that it is feasible to extract the cosmological signal across a wide range of multipoles and redshifts. The results are comparable with the standard principal component analysis method.
AB - Aims: The large-scale distribution of neutral hydrogen (H I) in the Universe is luminous through its 21 cm emission. The goal of the Baryon Acoustic Oscillations from Integrated Neutral Gas Observations (BINGO) radio telescope is to detect baryon acoustic oscillations at radio frequencies through 21 cm intensity mapping (IM). The telescope will span the redshift range 0.127 < z < 0.449 with an instantaneous field-of-view of 14.75° ×6.0°. Methods: In this work we investigate different constructive and operational scenarios of the instrument by generating sky maps as they would be produced by the instrument. In doing this we use a set of end-to-end IM mission simulations. The maps will additionally be used to evaluate the efficiency of a component separation method (GNILC). Results: We have simulated the kind of data that would be produced in a single-dish IM experiment such as BINGO. According to the results obtained, we have optimized the focal plane design of the telescope. In addition, the application of the GNILC method on simulated data shows that it is feasible to extract the cosmological signal across a wide range of multipoles and redshifts. The results are comparable with the standard principal component analysis method.
KW - telescopes
KW - methods: observational
KW - radio continuum: general
KW - cosmology: observations
KW - Astrophysics - Cosmology and Nongalactic Astrophysics
KW - Astrophysics - Instrumentation and Methods for Astrophysics
U2 - 10.1051/0004-6361/202140886
DO - 10.1051/0004-6361/202140886
M3 - Article
SN - 0004-6361
VL - 664
SP - A17
JO - Astronomy and Astrophysics
JF - Astronomy and Astrophysics
ER -