We analyze the effect of polarized diffuse emission in the calibration of wide-beam millimeter-wave polarimeters, when using the Crab Nebula as a reference source for both polarized brightness and polarization angle. We show that, for CMB polarization experiments aiming at detecting B-mode in a scenario with a tensor to scalar ratio r ∼ 0.001, wide (a few degrees in diameter), precise (σ Q, σ U ∼ 20, μ K CMB {arcmin}), high angular resolution (
The Crab Nebula as a Calibrator for Wide-beam Cosmic Microwave Background Polarization Surveys / Masi, S.; De Bernardis, P.; Columbro, F.; Coppolecchia, A.; D'Alessandro, G.; Mele, L.; Paiella, A.; Piacentini, F.. - In: THE ASTROPHYSICAL JOURNAL. - ISSN 0004-637X. - 921:1(2021). [10.3847/1538-4357/ac1860]
The Crab Nebula as a Calibrator for Wide-beam Cosmic Microwave Background Polarization Surveys
Masi S.
Primo
;De Bernardis P.;Columbro F.;Coppolecchia A.;D'Alessandro G.;Mele L.;Paiella A.;Piacentini F.
2021
Abstract
We analyze the effect of polarized diffuse emission in the calibration of wide-beam millimeter-wave polarimeters, when using the Crab Nebula as a reference source for both polarized brightness and polarization angle. We show that, for CMB polarization experiments aiming at detecting B-mode in a scenario with a tensor to scalar ratio r ∼ 0.001, wide (a few degrees in diameter), precise (σ Q, σ U ∼ 20, μ K CMB {arcmin}), high angular resolution (| File | Dimensione | Formato | |
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