Science
Working Groups
Scientific Objectives
The main objective of the collaboration is to understand the dark sector of the Universe. Bingo aims to observe the 21-cm line corresponding to the 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. Other relevant scientific goals are to develop instrumentation technology for observational cosmology and astrophysics and to study FAST Radio Bursts (FRBs) and periodic radio phenomena (Pulsars, RRAT, etc).
Instrument Optics
The requirements for the first phase of the project consider a large reflector system (two 40 m-class dishes in a crossed-Dragone configuration), illuminating a focal plane with 28 horns to measure the sky with 2 circular polarisations in a drift scan mode to produce measurements of the radiation in intensity as well as the circular polarisation.
Backends
Bingo will use SKARABs2 as its digital backends, with the nominal capability of processing 16384 FFT channels.
Pipeline
The pipeline objective is to produce a time series, which can be turned into maps that simulate the signal picked up by the BINGO during a given period of operation.
Simulations
The simulations are fundamental tools to investigate different constructive and operational scenarios of BINGO, as well as of its outriggers.
Receptors
BINGO was designed to be constructed with 28 feed horns. Each horn operates in the frequency range between 980 ≤ ν ≤ 1260 MHz, and a point in the sky drifts across a given horn beam during ≈ 2.7 minutes per day.
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