B-mode polarization forecasts for GreenPol
We present tensor-to-scalar ratio forecasts for GreenPol, a hypothetical ground-based B-mode experiment aiming to survey the cleanest regions of the Northern Galactic Hemisphere at five frequencies between 10 and 44 GHz. Its primary science goal would be to measure large-scale cosmic microwave backg...
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ftoslouniv:oai:www.duo.uio.no:10852/111216 2024-09-15T18:09:51+00:00 B-mode polarization forecasts for GreenPol ENEngelskEnglishB-mode polarization forecasts for GreenPol Fuskeland, Unni Kaplan, A. Wehus, Ingunn Kathrine Eriksen, Hans Kristian Kamfjord Christensen, P.R. von Hausegger, S. Liu, H. Lubin, P.M. Meinhold, P.R. Naselsky, P. Thommesen, Harald Zonca, A. 2024-05-13T14:02:11Z http://hdl.handle.net/10852/111216 https://doi.org/10.1051/0004-6361/202347393 EN eng Fuskeland, Unni Kaplan, A. Wehus, Ingunn Kathrine Eriksen, Hans Kristian Kamfjord Christensen, P.R. von Hausegger, S. Liu, H. Lubin, P.M. Meinhold, P.R. Naselsky, P. Thommesen, Harald Zonca, A. . B-mode polarization forecasts for GreenPol. Astronomy and Astrophysics (A & A). 2024, 684 http://hdl.handle.net/10852/111216 2268126 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy and Astrophysics (A & A)&rft.volume=684&rft.spage=&rft.date=2024 Astronomy and Astrophysics (A & A) 684 10 https://doi.org/10.1051/0004-6361/202347393 Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ 0004-6361 VDP::Astrofysikk astronomi: 438 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2024 ftoslouniv https://doi.org/10.1051/0004-6361/202347393 2024-08-05T14:09:29Z We present tensor-to-scalar ratio forecasts for GreenPol, a hypothetical ground-based B-mode experiment aiming to survey the cleanest regions of the Northern Galactic Hemisphere at five frequencies between 10 and 44 GHz. Its primary science goal would be to measure large-scale cosmic microwave background (CMB) polarization fluctuations at multipoles ℓ ≲ 500, and thereby constrain the primordial tensor-to-scalar ratio r. The observations for the suggested experiment would take place at the Summit Station (72 ° 34N, 38 ° 27W) on Greenland, at an altitude of 3216 m above sea level. For this paper we simulated various experimental setups, and derived limits on the tensor-to-scalar ratio after CMB component separation using a Bayesian component separation implementation called Commander. When combining the proposed experiment with Planck HFI observations for constraining polarized thermal dust emission, we found a projected limit of r < 0.02 at 95% confidence for the baseline configuration. This limit is very robust with respect to a range of important experimental parameters, including sky coverage, detector weighting, foreground priors, among others. Overall, GreenPol would have the possibility to provide deep CMB polarization measurements of the Northern Galactic Hemisphere at low frequencies. Article in Journal/Newspaper Greenland Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Astronomy & Astrophysics 684 A128 |
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Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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ftoslouniv |
language |
English |
topic |
VDP::Astrofysikk astronomi: 438 |
spellingShingle |
VDP::Astrofysikk astronomi: 438 Fuskeland, Unni Kaplan, A. Wehus, Ingunn Kathrine Eriksen, Hans Kristian Kamfjord Christensen, P.R. von Hausegger, S. Liu, H. Lubin, P.M. Meinhold, P.R. Naselsky, P. Thommesen, Harald Zonca, A. B-mode polarization forecasts for GreenPol |
topic_facet |
VDP::Astrofysikk astronomi: 438 |
description |
We present tensor-to-scalar ratio forecasts for GreenPol, a hypothetical ground-based B-mode experiment aiming to survey the cleanest regions of the Northern Galactic Hemisphere at five frequencies between 10 and 44 GHz. Its primary science goal would be to measure large-scale cosmic microwave background (CMB) polarization fluctuations at multipoles ℓ ≲ 500, and thereby constrain the primordial tensor-to-scalar ratio r. The observations for the suggested experiment would take place at the Summit Station (72 ° 34N, 38 ° 27W) on Greenland, at an altitude of 3216 m above sea level. For this paper we simulated various experimental setups, and derived limits on the tensor-to-scalar ratio after CMB component separation using a Bayesian component separation implementation called Commander. When combining the proposed experiment with Planck HFI observations for constraining polarized thermal dust emission, we found a projected limit of r < 0.02 at 95% confidence for the baseline configuration. This limit is very robust with respect to a range of important experimental parameters, including sky coverage, detector weighting, foreground priors, among others. Overall, GreenPol would have the possibility to provide deep CMB polarization measurements of the Northern Galactic Hemisphere at low frequencies. |
format |
Article in Journal/Newspaper |
author |
Fuskeland, Unni Kaplan, A. Wehus, Ingunn Kathrine Eriksen, Hans Kristian Kamfjord Christensen, P.R. von Hausegger, S. Liu, H. Lubin, P.M. Meinhold, P.R. Naselsky, P. Thommesen, Harald Zonca, A. |
author_facet |
Fuskeland, Unni Kaplan, A. Wehus, Ingunn Kathrine Eriksen, Hans Kristian Kamfjord Christensen, P.R. von Hausegger, S. Liu, H. Lubin, P.M. Meinhold, P.R. Naselsky, P. Thommesen, Harald Zonca, A. |
author_sort |
Fuskeland, Unni |
title |
B-mode polarization forecasts for GreenPol |
title_short |
B-mode polarization forecasts for GreenPol |
title_full |
B-mode polarization forecasts for GreenPol |
title_fullStr |
B-mode polarization forecasts for GreenPol |
title_full_unstemmed |
B-mode polarization forecasts for GreenPol |
title_sort |
b-mode polarization forecasts for greenpol |
publishDate |
2024 |
url |
http://hdl.handle.net/10852/111216 https://doi.org/10.1051/0004-6361/202347393 |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
0004-6361 |
op_relation |
Fuskeland, Unni Kaplan, A. Wehus, Ingunn Kathrine Eriksen, Hans Kristian Kamfjord Christensen, P.R. von Hausegger, S. Liu, H. Lubin, P.M. Meinhold, P.R. Naselsky, P. Thommesen, Harald Zonca, A. . B-mode polarization forecasts for GreenPol. Astronomy and Astrophysics (A & A). 2024, 684 http://hdl.handle.net/10852/111216 2268126 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy and Astrophysics (A & A)&rft.volume=684&rft.spage=&rft.date=2024 Astronomy and Astrophysics (A & A) 684 10 https://doi.org/10.1051/0004-6361/202347393 |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1051/0004-6361/202347393 |
container_title |
Astronomy & Astrophysics |
container_volume |
684 |
container_start_page |
A128 |
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1810447444656259072 |