ATCA and CMB anisotropies

Details ATCA and CMB anisotropies ATCA and CMB anisotropies

2001-08-27

arxiv.org/abs/astro-ph/0108409v1

Astronomy and Astrophysics

Astrophysics

6 pages, includes 1 figure, to appear in the ASP Conf Ser proceedings of AMiBA 2001: High-z clusters, Missing baryons, and CMB

Scientific paper

Australia Telescope Compact Array (ATCA) observations in sky regions selected to be low in foreground confusion have been used to infer limits on arcmin-scale CMB anisotropy in total intensity and polarization. These deep searches have, hitherto, been made using the East-West ATCA in an ultra-compact 1-D array configuration and in the highest available frequency band at 3-cm wavelength. The ATCA is being upgraded for operation at mm wavelengths and in 2-D array configurations: the enhanced capabilities present a new opportunity for pursuing CMB anisotropy related observations with reduced foreground confusion and at smaller angular scales.

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