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,
and Peter T. Timbie
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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.
The Astrophysical Journal 12/2008; 610(2):625. · 6.02 Impact Factor