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

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

doi:10.1086/344522

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

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

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	1-20
Number of pages	19
Journal	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Volume	144
Issue number	1
DOIs	https://doi.org/10.1086/344522
Publication status	Published - Jan 2003

Keywords

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

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10.1086/344522

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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.",

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AU - O'Dell, Christopher W.

AU - Gundersen, Joshua O.

AU - Piccirillo, Lucio

AU - Stebor, Nate C.

AU - Timbie, Peter T.

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KW - Cosmic microwave background

KW - Cosmology: observations

KW - Instrumentation: polarimeters

KW - Radio continuum: general

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

Abstract

Keywords

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