An instrument for investigating the large angular scale polarization of the cosmic microwave background

Brian G. Keating, Christopher W. O'Dell, Joshua Gundersen, Lucio Piccirillo, Nate C. Stebor, Peter T. Timbie

Research output: Contribution to journalArticle

15 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)1-20
Number of pages20
JournalAstrophysical Journal, Supplement Series
Volume144
Issue number1
DOIs
StatePublished - Jan 2003

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polarimeters
polarization
microwaves
cosmic microwave background radiation
microwave frequencies
high electron mobility transistors
astrophysics
amplifiers
sensitivity
radiation
configurations
microwave

Keywords

  • Cosmic microwave background
  • Cosmology: observations
  • Instrumentation: polarimeters
  • Radio continuum: general

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

An instrument for investigating the large angular scale polarization of the cosmic microwave background. / Keating, Brian G.; O'Dell, Christopher W.; Gundersen, Joshua; Piccirillo, Lucio; Stebor, Nate C.; Timbie, Peter T.

In: Astrophysical Journal, Supplement Series, Vol. 144, No. 1, 01.2003, p. 1-20.

Research output: Contribution to journalArticle

Keating, Brian G. ; O'Dell, Christopher W. ; Gundersen, Joshua ; Piccirillo, Lucio ; Stebor, Nate C. ; Timbie, Peter T. / An instrument for investigating the large angular scale polarization of the cosmic microwave background. In: Astrophysical Journal, Supplement Series. 2003 ; Vol. 144, No. 1. pp. 1-20.
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