The BINGO Project IV: Simulations for mission performance assessment and preliminary component separation steps

Abstract

The large-scale distribution of neutral hydrogen (HI) 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 (BAOs) 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 $14.75^{\circ }\times 6.0^{\circ }$. 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). 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.

16 pages. Version to appear in A&A

References in corpus (13)

• Array Programming with NumPy
• Cosmology at Low Frequencies: The 21 cm Transition and the High-Redshift Universe
• Measurement of 21 cm brightness fluctuations at z ~ 0.8 in cross-correlation
• Separation of anomalous and synchrotron emissions using WMAP polarization data
• Photometric redshift analysis in the Dark Energy Survey Science Verification data
• Testing General Relativity with 21 cm intensity mapping
• Blind foreground subtraction for intensity mapping experiments
• The BINGO Project I: Baryon Acoustic Oscillations from Integrated Neutral Gas Observations
• The BINGO Project II: Instrument Description
• The BINGO Project VII: Cosmological Forecasts from 21cm Intensity Mapping
• The BINGO Project VI: HI Halo Occupation Distribution and Mock Building
• The BINGO Project V: Further steps in Component Separation and Bispectrum Analysis
• A Joint Analysis for Cosmology and Photometric Redshift Calculation Using Cross Correlations

Cited by in corpus (11)

• The BINGO Project I: Baryon Acoustic Oscillations from Integrated Neutral Gas Observations
• The BINGO Project II: Instrument Description
• The BINGO Project VII: Cosmological Forecasts from 21cm Intensity Mapping
• The BINGO Project VI: HI Halo Occupation Distribution and Mock Building
• The BINGO Project V: Further steps in Component Separation and Bispectrum Analysis
• Cosmological constraints from low redshift 21 cm intensity mapping with machine learning
• The BINGO Project IX: Search for Fast Radio Bursts -- A Forecast for the BINGO Interferometry System
• The BINGO project VIII: On the recoverability of the BAO signal on HI intensity mapping simulations
• Testing synchrotron models and frequency resolution in BINGO 21 cm simulated maps using GNILC
• Cosmological Forecasts from the Baryon Acoustic Oscillations in 21cm Intensity Mapping
• The BINGO project X. Cosmological parameter constraints from HI Intensity Mapping lognormal simulations