Update on the BINGO 21cm intensity mapping experiment

(10) UKZN; (2) U. Sao Paolo; (3) INPE; (4) U. Republic; (6) UCL; (7) U. Portsmouth; (8) IAS; (9) Cardiff University; Alexandre Refregier (5); Alex Wuensche (3)

Update on the BINGO 21cm intensity mapping experiment

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arxiv 1610.06826 v1 pith:3OV64CTV submitted 2016-10-21 astro-ph.CO

Richard Battye (1) , Ian Browne (1) , Tianyue Chen (1) , Clive Dickinson (1) , Stuart Harper (1) , Lucas Olivari (1) , Michael Peel (1) , Mathieu Remazeilles (1)

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Sambit Roychowdhury (1) Peter Wilkinson (1) Elcio Abdalla (2) Raul Abramo (2) Elisa Ferreira (2) Alex Wuensche (3) Thyrso Vilella (3) Manuel Caldas (4) Gonzalo Tancredi (4) Alexandre Refregier (5) Christian Monstein (5) Filipe Abdalla (6) Alkistis Pourtsidou (7) Bruno Maffei (8) Giampaolo Pisano (9) Yin-Zhe Ma (10) ((1) JBCA The University of Manchester (2) U. Sao Paolo (3) INPE Brazil (4) U. Republic Montevideo (5) ETH Zurich Switzerland (6) UCL (7) U. Portsmouth (8) IAS Paris (9) Cardiff University (10) UKZN South Africa)

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keywords intensitymappingbingocosmologicalupdateacousticaimedapproach

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21cm intensity mapping is a novel approach aimed at measuring the power spectrum of density fluctuations and deducing cosmological information, notably from the Baryonic Acoustic Oscillations (BAO). We give an update on the progress of BAO from Integrated Neutral Gas Observations (BINGO) which is a single dish intensity mapping project. First we explain the basic ideas behind intensity mapping concept before updating the instrument design for BINGO. We also outline the survey we plan to make and its projected science output including estimates of cosmological parameters.

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An expanded GNILC algorithm using a DCT along the frequency axis, a bias-corrected AIC for foreground degrees of freedom, and an RPCA-embedded blind variant recovers simulated 21-cm power spectra from SKA-MID and BING...

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