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{BINGO:} a single dish approach to 21cm intensity mapping
Battye, R A; Brown, M L; Browne, I W A; Davis, R J; Dewdney, P; Dickinson, C; Heron, G; Maffei, B; Pourtsidou, A; Wilkinson, P N
{ArXiv} e-prints. 2012;1209:1041.
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Abstract
{BINGO} is a concept for performing a 21cm intensity mapping survey using a single dish telescope. We briefly discuss the idea of intensity mapping and go on to define our single dish concept. This involves a {\textbackslash}sim 40 m dish with an array of {\textbackslash}sim 50 feed horns placed {\textbackslash}sim 90 m above the dish using a pseudo-correlation detection system based on room temperature {LNAs} and one of the celestial poles as references. We discuss how such an array operating between 960 and 1260 {MHz} could be used to measure the acoustic scale to 2.4\% over the redshift range 0.13{\textless}0.48 in around 1 year of on-source integration time by performing a 10 deg {\textbackslash}times 200 deg drift scan survey with a resolution of {\textbackslash}sim 2/3 deg.
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- Related website http://adsabs.harvard.edu/abs/2012arXiv1209.1041B