An Instrument for Investigating the Large Angular Scale Polarization of the Cosmic Microwave Background
Astrophysics
2009-11-07 v2
Abstract
We describe the design and performance of a microwave polarimeter used to make precision measurements of polarized astrophysical radiation in three microwave frequency bands spanning 26-36 GHz. The instrument uses cooled HEMT amplifiers in a correlation polarimeter configuration to achieve high sensitivity and long-term stability. The instrument demonstrates long term stability and has produced the most restrictive upper limits to date on the large angular scale polarization of the 2.7 K cosmic microwave background radiation.
Keywords
Cite
@article{arxiv.astro-ph/0111276,
title = {An Instrument for Investigating the Large Angular Scale Polarization of the Cosmic Microwave Background},
author = {Brian G. Keating and Christopher W. O'Dell and Joshua O. Gundersen and Lucio Piccirillo and Nate Stebor and Peter T. Timbie},
journal= {arXiv preprint arXiv:astro-ph/0111276},
year = {2009}
}
Comments
Replaced with revised version. Accepted for publication in ApJSS January 2003