Interferometry has been a very successful tool for measuring anisotropies in the cosmic microwave background. Interferometers provided the first constraints on CMB anisotropies on small angular scales (∼ 10000) in the 1980s and then in the late 1990s and early 2000s made groundbreaking measurements of the CMB power spectrum at intermediate and small angular scales covering the range 100-4000. In 2002 the DASI made the first detection of CMB polarization which remains a major goal for current and future CMB experiments. Interferometers have also made major contributions to the detection and surveying of the Sunyaev-Zel'dovich (SZ) effect in galaxy clusters. In this short review I cover the key aspects that made interferometry well-suited to CMB measurements and summarise some of the central observations that have been made. I look to the future and in particular to HI intensity mapping at high redshifts that could make use of the advantages of interferometry.
|Number of pages||8|
|Journal||Proceedings of Science|
|Publication status||Published - 1 Jan 2012|
|Event||2012 Resolving The Sky - Radio Interferometry: Past, Present and Future, RTS 2012 - Manchester, United Kingdom|
Duration: 17 Apr 2012 → 20 Apr 2012