Polarization Observations with the Cosmic Background Imager

@article{Readhead2004PolarizationOW,
  title={Polarization Observations with the Cosmic Background Imager},
  author={Anthony C. S. Readhead and Steven Theodore Myers and T. J. Pearson and Jonathan L. Sievers and Brian S. Mason and Carlo R. Contaldi and J. Richard Bond and Ricardo Bustos and Pablo Altamirano and C. Achermann and Leonardo Bronfman and John E. Carlstrom and John K. Cartwright and Simon Casassus and Clive Dickinson and William L. Holzapfel and John M. Kovac and Erik M. Leitch and Jorge May and Stephen Padin and Dmitry Pogosyan and Marian W. Pospieszalski and Clement L Pryke and Rodrigo A. Reeves and Malcolm Shepherd and Sergio Torres},
  journal={Science},
  year={2004},
  volume={306},
  pages={836 - 844}
}
Polarization observations of the cosmic microwave background with the Cosmic Background Imager from September 2002 to May 2004 provide a significant detection of the E-mode polarization and reveal an angular power spectrum of polarized emission showing peaks and valleys that are shifted in phase by half a cycle relative to those of the total intensity spectrum. This key agreement between the phase of the observed polarization spectrum and that predicted on the basis of the total intensity… 
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