CMB observations using the SKA

Details CMB observations using the SKA CMB observations using the SKA

2002-09-26

arxiv.org/abs/astro-ph/0209569v1

Astronomy and Astrophysics

Astrophysics

4 pages. invited talk presented at the XXVIIth General Assembly of the URSI, 17-24 Aug 2002, Maastricht, The Netherlands

Scientific paper

We examine the prospects for observations of CMB anisotropy with the SKA; we discuss the advantages of interferometric SKA imaging, observing strategies, calibration issues and the achievable sensitivity. Although the SKA will probably operate at cm wavelengths, where discrete source confusion dominates the CMB anisotropy, its extreme sensitivity to point sources will make it possible to subtract the source contamination at these wavelengths and thereby image the low surface brightness CMB anisotropies on small angular scales. The SKA, operating at 10-20 GHz, may usefully make high-l observations of the CMB anisotropy spectrum and survey the sky for Sunyaev-Zeldovich decrements.

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