Desenvolvimento do protótipo de monitoramento de RFI para o sítio do radiotelescópio BINGO.

Abstract

The BINGO radio telescope (Baryon Acoustic Oscillations in Neutral Gas Observations) is a new radio telescope designed to detect Baryon Acoustic Oscillations (BAO), waves generated by the interaction of matter with radiation in the early Universe, which can also be monitored using radio frequency. BINGO will measure the expansion of the universe and infer the properties of dark energy by detecting the 21cm line of hydrogen, which may indicate the distribution of galaxies just after the Big Bang. The band in which BINGO will operate will be from 980 to 1260MHz, measuring weak cosmological signals (milliKelvin levels), therefore, a location free from radio frequency interference (RFI) is required both in the BINGO band and in its vicinity. RFI measurement campaigns were carried out in Uruguay and Brazil to find a suitable location for the construction of the radio telescope. This work sought to improve the methods used to perform the measurements, creating a prototype of an RFI monitoring station, automating the entire process that goes from detection to the graphical visualization of data in real time through a webpage, which was named BINGO RFI Monitor.