Open Access
The Crab Nebula as a Calibrator for Wide-beam Cosmic Microwave Background Polarization Surveys
Publication type: Journal Article
Publication date: 2021-10-28
scimago Q1
wos Q1
SJR: 2.038
CiteScore: 8.4
Impact factor: 5.4
ISSN: 0004637X, 15384357
Space and Planetary Science
Astronomy and Astrophysics
Abstract
We analyze the effect of polarized diffuse emission in the calibration of wide-beam mm-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 $r \sim 0.001$, wide (a few degrees in diameter), precise ($\sigma_Q$ , $\sigma_U$ $\sim$ 20 $\mu$$K_{CMB}$ arcmin), high angular resolution ($< \mathrm{FWHM}$) reference maps are needed to properly take into account the effects of diffuse polarized emission and avoid significant bias in the calibration.
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Masi S. et al. The Crab Nebula as a Calibrator for Wide-beam Cosmic Microwave Background Polarization Surveys // Astrophysical Journal. 2021. Vol. 921. No. 1. p. 34.
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Masi S., de Bernardis P., Columbro F., Coppolecchia A., D’Alessandro G., Mele L., Paiella A., Piacentini F. The Crab Nebula as a Calibrator for Wide-beam Cosmic Microwave Background Polarization Surveys // Astrophysical Journal. 2021. Vol. 921. No. 1. p. 34.
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RIS
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TY - JOUR
DO - 10.3847/1538-4357/ac1860
UR - https://doi.org/10.3847/1538-4357/ac1860
TI - The Crab Nebula as a Calibrator for Wide-beam Cosmic Microwave Background Polarization Surveys
T2 - Astrophysical Journal
AU - Masi, S.
AU - de Bernardis, P.
AU - Columbro, Fabio
AU - Coppolecchia, Alessandro
AU - D’Alessandro, Giuseppe
AU - Mele, Lorenzo
AU - Paiella, Alessandro
AU - Piacentini, F.
PY - 2021
DA - 2021/10/28
PB - American Astronomical Society
SP - 34
IS - 1
VL - 921
SN - 0004-637X
SN - 1538-4357
ER -
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BibTex (up to 50 authors)
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@article{2021_Masi,
author = {S. Masi and P. de Bernardis and Fabio Columbro and Alessandro Coppolecchia and Giuseppe D’Alessandro and Lorenzo Mele and Alessandro Paiella and F. Piacentini},
title = {The Crab Nebula as a Calibrator for Wide-beam Cosmic Microwave Background Polarization Surveys},
journal = {Astrophysical Journal},
year = {2021},
volume = {921},
publisher = {American Astronomical Society},
month = {oct},
url = {https://doi.org/10.3847/1538-4357/ac1860},
number = {1},
pages = {34},
doi = {10.3847/1538-4357/ac1860}
}
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MLA
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Masi, S., et al. “The Crab Nebula as a Calibrator for Wide-beam Cosmic Microwave Background Polarization Surveys.” Astrophysical Journal, vol. 921, no. 1, Oct. 2021, p. 34. https://doi.org/10.3847/1538-4357/ac1860.