The BINGO project. IV. Simulations for mission performance assessment and preliminary component separation steps

Liccardo, Vincenzo; de Mericia, Eduardo J.; Wuensche, Carlos A.; Abdalla, Elcio; Abdalla, Filipe B.; Barosi, Luciano; Brito, Francisco A.; Queiroz, Amilcar; Villela, Thyrso; Peel, Michael W.; Wang, Bin; Costa, Andre A.; Ferreira, Elisa G. M.; Fornazier, Karin S. F.; Novaes, Camila P.; Santos, Larissa; dos Santos, Marcelo V.; Remazeilles, Mathieu; Zhang, Jiajun; Dickinson, Clive; Harper, Stuart; Landim, Ricardo G.; Marins, Alessandro; Vieira, Frederico
Referencia bibliográfica

Astronomy and Astrophysics

Fecha de publicación:
8
2022
Número de autores
24
Número de autores del IAC
1
Número de citas
13
Número de citas referidas
10
Descripción

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.
Proyectos relacionados
Mapa de todo el cielo mostrando la distribución espacial de las anisotropias primarias del Fondo Cósmico de Microondas (generadas sólo 380,000 años después del Big Bang) extraído de las observaciones del satélite Planck
Anisotropía del Fondo Cósmico de Microondas

El objetivo general de este proyecto es determinar y estudiar las variaciones espaciales y espectrales en la temperatura del Fondo Cósmico de Microondas y en su Polarización en un amplio rango de escalas angulares que van desde pocos minutos de arco hasta varios grados. Las fluctuaciones primordiales en la densidad de materia, que dieron origen a

Rafael
Rebolo López