Compass: An upper limit on cosmic microwave background polarization at an angular scale of 20′

Philip C. Farese, Giorgio Dall'Oglio, Joshua O. Gundersen, Brian G. Keating, Slade Klawikowski, Lloyd Knox, Alan Levy, Philip M. Lubin, Chris W. O'Dell, Alan Peel, Lucio Piccirillo, John Ruhl, Peter T. Timbie

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

COMPASS is an on-axis 2.6 m telescope coupled to a correlation polarimeter operating at a wavelength of 1 cm. The entire instrument was built specifically for cosmic microwave background (CMB) polarization studies. We report here on observations of 2001 February-April using this system. We set an upper limit on E-mode polarized anisotropies of 1036 μK2 (95% confidence limit) in the l range 93-555.

Original languageEnglish (US)
Pages (from-to)625-634
Number of pages10
JournalAstrophysical Journal
Volume610
Issue number2 I
DOIs
StatePublished - Aug 1 2004

Keywords

  • Cosmic microwave background
  • Cosmology: observations
  • Instrumentation: polarimeters

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Farese, P. C., Dall'Oglio, G., Gundersen, J. O., Keating, B. G., Klawikowski, S., Knox, L., Levy, A., Lubin, P. M., O'Dell, C. W., Peel, A., Piccirillo, L., Ruhl, J., & Timbie, P. T. (2004). Compass: An upper limit on cosmic microwave background polarization at an angular scale of 20′. Astrophysical Journal, 610(2 I), 625-634. https://doi.org/10.1086/421837