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The Cosmic Foreground Explorer (COFE): A balloon-borne microwave polarimeter to characterize polarized foregrounds |
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| Authors: | Rodrigo Leonardi Brian Williams Marco Bersanelli Ivan Ferreira Philip M Lubin Peter R Meinhold Hugh O&#x;Neill Nathan C Stebor Fabrizio Villa Thyrso Villela Carlos A Wuensche |
| Affiliation: | aPhysics Department, University of California, Santa Barbara, CA 93106, United States;bInstituto Nacional de Pesquisas Espaciais, Divisão de Astrofísica, Caixa Postal 515, 12227-010, São José dos Campos, SP, Brazil;cDipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, 20133 Milan, Italy;dINAF - IASF Bologna, Via P. Gobetti, 101, 40129 Bologna, Italy |
| Abstract: | The COsmic Foreground Explorer (COFE) is a balloon-borne microwave polarimeter designed to measure the low-frequency and low-ℓ characteristics of dominant diffuse polarized foregrounds. Short duration balloon flights from the Northern and Southern Hemispheres will allow the telescope to cover up to 80% of the sky with an expected sensitivity per pixel better than 100 μK/deg2 from 10 GHz to 20 GHz. This is an important effort toward characterizing the polarized foregrounds for future CMB experiments, in particular the ones that aim to detect primordial gravity wave signatures in the CMB polarization angular power spectrum. |
| Keywords: | Cosmology: observations Cosmic microwave background Polarization foregrounds |
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