http://arxiv.org/abs/1909.11938
This chapter aims to provide a review of the basics of 21 cm interferometric observations and its methodologies. A summary of the main concepts of radio interferometry and their connection with the 21 cm observables – power spectra and images – is presented. I then provide a review of interferometric calibration and its interplay with foreground separation, including the current open challenges in calibration of 21 cm observations. Finally, a review of 21 cm instrument designs in the light of calibration choices and observing strategies follows.
G. Bernardi
Fri, 27 Sep 19
28/64
Comments: To appear as a book chapter in The Cosmic 21-cm Revolution: Charting the first billion years of our Universe, Ed Andrei Mesinger (Bristol: IOP Publishing Ltd) AAS-IOP ebooks this http URL
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