Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.1708o&link_type=abstract
American Astronomical Society, 197th AAS Meeting, #17.08; Bulletin of the American Astronomical Society, Vol. 32, p.1433
Astronomy and Astrophysics
Astronomy
Scientific paper
While the temperature anisotropy power spectrum of the Cosmic Microwave Background (CMB) is being measured with ever-increasing accuracy, polarization in the CMB has yet to be seen. The CMB is expected to be polarized at a low level due to Thomson scattering at the time of recombination. CMB polarization encodes a wealth of information separate from that of temperature anisotropy, and is particularly sensitive to the duration of recombination as well as the redshift of reionization. In addition, a CMB polarization experiment can characterize the polarization of galactic foregrounds such as synchrotron radiation and dust emission. The POLAR experiment is a ground-based correlation radiometer designed to see CMB polarization in the Ka-band (26-36 GHz) at large angular scales. In this paper, we will describe the POLAR experiment and report on recent observations made from Madison, Wisconsin in the spring of 2000.
Keating Brian
O'Dell Christopher
Timbie Peter
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