CMB Polarimetry using Correlation Receivers with the PIQUE and CAPMAP Experiments

Details CMB Polarimetry using Correlation Receivers with the PIQUE and CAPMAP Experiments CMB Polarimetry using Correlation Receivers with the PIQUE and CAPMAP Experiments

2005-03-16

arxiv.org/abs/astro-ph/0503329v1

Astronomy and Astrophysics

Astrophysics

70 pages, 13 tables, 18 figures. Accepted by ApJS; tentative publication ApJS July 2005, v159 1

Scientific paper

10.1086/430208

The Princeton IQU Experiment (PIQUE) and the Cosmic Anisotropy Polarization MAPper (CAPMAP) are experiments designed to measure the polarization of the Cosmic Microwave Background (CMB) on sub-degree scales in an area within 1 degree of the North Celestial Pole using heterodyne correlation polarimeters and off-axis telescopes located in central New Jersey. PIQUE produced the tightest limit on the CMB polarization prior to its detection by DASI, while CAPMAP has recently detected polarization at l~1000. The experimental methods and instrumentation for these two projects are described in detail with emphasis on the particular challenges involved in measuring the tiny polarized component of the CMB.

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