First measurements of the polarization of the cosmic microwave background radiation at small angular scales from CAPMAP

D. Barkats, C. Bischoff, P. Farese, L. Fitzpatrick, T. Gaier, J. O. Gundersen, M. M. Hedman, L. Hyatt, J. J. Mcmahon, D. Samtleben, S. T. Staggs, K. Vanderlinde, B. Winstein

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77 Scopus citations

Abstract

Polarization results from the Cosmic Anisotropy Polarization MAPper (CAPMAP) experiment are reported. These are based on 433 hr, after cuts, observing a 2 deg2 patch around the north celestial pole with four 90 GHz correlation polarimeters coupled to optics defining 4′ beams. The E-mode flat band-power anisotropy within l = 940-300+330 is measured as 66-39-53 μK2; the 95% confidence level upper limit for B-mode power within l = 1050 -520+590 is measured as 38 μK2.

Original languageEnglish (US)
Pages (from-to)L127-L130
JournalAstrophysical Journal
Volume619
Issue number2 II
DOIs
StatePublished - Feb 1 2005

Keywords

  • Cosmic microwave background
  • Cosmology: observations

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Barkats, D., Bischoff, C., Farese, P., Fitzpatrick, L., Gaier, T., Gundersen, J. O., Hedman, M. M., Hyatt, L., Mcmahon, J. J., Samtleben, D., Staggs, S. T., Vanderlinde, K., & Winstein, B. (2005). First measurements of the polarization of the cosmic microwave background radiation at small angular scales from CAPMAP. Astrophysical Journal, 619(2 II), L127-L130. https://doi.org/10.1086/428285