A measurement of the CMS 〈EE〉 spectrum from the 2003 flight of Boomerang

T. E. Montroy, P. A.R. Ade, J. J. Bock, J. R. Bond, J. Borrill, A. Boscaleri, P. Cabella, C. R. Contaldi, B. P. Crill, P. De Bernardis, G. De Gasperis, A. De Oliveira-Costa, G. De Troia, G. D.I. Stefano, E. Hivon, A. H. Jaffe, T. S. Kisner, W. C. Jones, A. E. Lange, S. MasiP. D. Mauskopf, C. J. MacTavish, A. Melchiorri, P. Natoli, C. B. Netterfield, E. Pascale, F. Piacentini, D. Pogosyan, G. Polenta, S. Prunet, S. Ricciardi, G. Romeo, J. E. Ruhl, P. Santini, M. Tegmark, M. Veneziani, N. Vittorio

Research output: Contribution to journalArticlepeer-review

234 Scopus citations


We report measurements of the CMB polarization power spectra from the 2003 January Antarctic flight of BOOMERANG. The primary results come from 6 days of observation of a patch covering 0.22% of the sky centered near R.A. = 82°.5, decl. = -45°. The observations were made using four pairs of polarization-sensitive bolometers operating in bands centered at 145 GHz. Using two independent analysis pipelines, we measure a nonzero 〈EE〉 signal in the range 201 < l < 1000 with a significance of 4.8 σ, a 2 σ upper limit of 8.6 μK2 for any 〈BB〉 contribution, and a 2 σ upper limit of 7.0 μK2 for the 〈EB〉 spectrum. Estimates of foreground intensity fluctuations and the non-detection of 〈BB〉 and 〈EB〉 signals rule out any significant contribution from Galactic foregrounds. The results are consistent with a ΛCDM cosmology seeded by adiabatic perturbations. We note that this is the first detection of CMB polarization with bolometric detectors.

Original languageEnglish (US)
Pages (from-to)813-822
Number of pages10
JournalAstrophysical Journal
Issue number2 I
StatePublished - Aug 20 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • Cosmic microwave background
  • Instrumentation: detectors


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