{BINGO:} a single dish approach to 21cm intensity mapping

R A Battye, M L Brown, I W A Browne, R J Davis, P Dewdney, C Dickinson, G Heron, B Maffei, A Pourtsidou, P N Wilkinson

    Research output: Contribution to journalArticlepeer-review

    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.
    Original languageEnglish
    Journal{ArXiv} e-prints
    Volume1209
    Publication statusPublished - Sep 2012

    Keywords

    • Astrophysics - Cosmology and Extragalactic Astrophysics

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