The BINGO Project II: Instrument Description

Understand

The measurement of diffuse 21-cm radiation from the hyperfine transition of neutral hydrogen (HI 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 HI signal, in the redshift interval $0.127 \le z \le 0.449$.
• This paper describes the BINGO radio telescope, including the current status of the optics, receiver, observational strategy, calibration, and the site.