A Demonstration of Improved Constraints on Primordial Gravitational Waves with Delensing
We present a constraint on the tensor-to-scalar ratio, $r$, derived from measurements of cosmic microwave background (CMB) polarization $B$-modes with "delensing," whereby the uncertainty on $r$ contributed by the sample variance of the gravitational lensing $B$-modes is reduced by cross-c...
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Online Access: | https://dx.doi.org/10.48550/arxiv.2011.08163 https://arxiv.org/abs/2011.08163 |
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ftdatacite:10.48550/arxiv.2011.08163 2023-05-15T18:22:50+02:00 A Demonstration of Improved Constraints on Primordial Gravitational Waves with Delensing BICEP/Keck Collaborations, SPTpol Ade, P. A. R. Ahmed, Z. Amiri, M. Anderson, A. J. Austermann, J. E. Avva, J. S. Barkats, D. Thakur, R. Basu Beall, J. A. Bender, A. N. Benson, B. A. Bianchini, F. Bischoff, C. A. Bleem, L. E. Bock, J. J. Boenish, H. Bullock, E. Buza, V. Carlstrom, J. E. Chang, C. L. Cheshire, J. R. Chiang, H. C. Chou, T-L. Citron, R. Connors, J. Moran, C. Corbett Cornelison, J. Crawford, T. M. Crites, A. T. Crumrine, M. Cukierman, A. de Haan, T. Dierickx, M. Dobbs, M. A. Duband, L. Everett, W. Fatigoni, S. Filippini, J. P. Fliescher, S. Gallicchio, J. George, E. M. Germaine, T. St. Goeckner-Wald, N. Goldfinger, D. C. Grayson, J. Gupta, N. Hall, G. Halpern, M. Halverson, N. W. Harrison, S. Henderson, S. Henning, J. W. Hildebrandt, S. R. Hilton, G. C. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Huang, N. Hubmayr, J. Hui, H. Irwin, K. D. Kang, J. Karkare, K. S. Karpel, E. Kefeli, S. Kernasovskiy, S. A. Knox, L. Kovac, J. M. Kuo, C. L. Lau, K. Lee, A. T. Leitch, E. M. Li, D. Lowitz, A. Manzotti, A. McMahon, J. J. Megerian, K. G. Meyer, S. S. Millea, M. Mocanu, L. M. Moncelsi, L. Montgomery, J. Nadolski, A. Namikawa, T. Natoli, T. Netterfield, C. B. Nguyen, H. T. Nibarger, J. P. Noble, G. Novosad, V. O'Brient, R. Ogburn, R. W. Omori, Y. Padin, S. Palladino, S. Patil, S. Prouve, T. Pryke, C. Racine, B. Reichardt, C. L. Reintsema, C. D. Richter, S. Ruhl, J. E. Saliwanchik, B. R. Schaffer, K. K. Schillaci, A. Schmitt, B. L. Schwarz, R. Sheehy, C. D. Sievers, C. Smecher, G. Soliman, A. Stark, A. A. Steinbach, B. Sudiwala, R. V. Teply, G. P. Thompson, K. L. Tolan, J. E. Tucker, C. Turner, A. D. Umiltà, C. Veach, T. Vieira, J. D. Vieregg, A. G. Wandui, A. Wang, G. Weber, A. C. Whitehorn, N. Wiebe, D. V. Willmert, J. Wong, C. L. Wu, W. L. K. Yang, H. Yefremenko, V. Yoon, K. W. Young, E. Yu, C. Zeng, L. Zhang, C. 2020 https://dx.doi.org/10.48550/arxiv.2011.08163 https://arxiv.org/abs/2011.08163 unknown arXiv https://dx.doi.org/10.1103/physrevd.103.022004 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences article-journal Article ScholarlyArticle Text 2020 ftdatacite https://doi.org/10.48550/arxiv.2011.08163 https://doi.org/10.1103/physrevd.103.022004 2022-03-10T15:18:57Z We present a constraint on the tensor-to-scalar ratio, $r$, derived from measurements of cosmic microwave background (CMB) polarization $B$-modes with "delensing," whereby the uncertainty on $r$ contributed by the sample variance of the gravitational lensing $B$-modes is reduced by cross-correlating against a lensing $B$-mode template. This template is constructed by combining an estimate of the polarized CMB with a tracer of the projected large-scale structure. The large-scale-structure tracer used is a map of the cosmic infrared background derived from Planck satellite data, while the polarized CMB map comes from a combination of South Pole Telescope, BICEP/Keck, and Planck data. We expand the BICEP/Keck likelihood analysis framework to accept a lensing template and apply it to the BICEP/Keck data set collected through 2014 using the same parametric foreground modelling as in the previous analysis. From simulations, we find that the uncertainty on $r$ is reduced by $\sim10\%$, from $σ(r)$= 0.024 to 0.022, which can be compared with a $\sim26\%$ reduction obtained when using a perfect lensing template. Applying the technique to the real data, the constraint on $r$ is improved from $r_{0.05} < 0.090$ to $r_{0.05} < 0.082$ (95\% C.L.). This is the first demonstration of improvement in an $r$ constraint through delensing. : 23 pages, 11 figures; match published version Article in Journal/Newspaper South pole DataCite Metadata Store (German National Library of Science and Technology) South Pole |
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Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences |
spellingShingle |
Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences BICEP/Keck Collaborations, SPTpol Ade, P. A. R. Ahmed, Z. Amiri, M. Anderson, A. J. Austermann, J. E. Avva, J. S. Barkats, D. Thakur, R. Basu Beall, J. A. Bender, A. N. Benson, B. A. Bianchini, F. Bischoff, C. A. Bleem, L. E. Bock, J. J. Boenish, H. Bullock, E. Buza, V. Carlstrom, J. E. Chang, C. L. Cheshire, J. R. Chiang, H. C. Chou, T-L. Citron, R. Connors, J. Moran, C. Corbett Cornelison, J. Crawford, T. M. Crites, A. T. Crumrine, M. Cukierman, A. de Haan, T. Dierickx, M. Dobbs, M. A. Duband, L. Everett, W. Fatigoni, S. Filippini, J. P. Fliescher, S. Gallicchio, J. George, E. M. Germaine, T. St. Goeckner-Wald, N. Goldfinger, D. C. Grayson, J. Gupta, N. Hall, G. Halpern, M. Halverson, N. W. Harrison, S. Henderson, S. Henning, J. W. Hildebrandt, S. R. Hilton, G. C. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Huang, N. Hubmayr, J. Hui, H. Irwin, K. D. Kang, J. Karkare, K. S. Karpel, E. Kefeli, S. Kernasovskiy, S. A. Knox, L. Kovac, J. M. Kuo, C. L. Lau, K. Lee, A. T. Leitch, E. M. Li, D. Lowitz, A. Manzotti, A. McMahon, J. J. Megerian, K. G. Meyer, S. S. Millea, M. Mocanu, L. M. Moncelsi, L. Montgomery, J. Nadolski, A. Namikawa, T. Natoli, T. Netterfield, C. B. Nguyen, H. T. Nibarger, J. P. Noble, G. Novosad, V. O'Brient, R. Ogburn, R. W. Omori, Y. Padin, S. Palladino, S. Patil, S. Prouve, T. Pryke, C. Racine, B. Reichardt, C. L. Reintsema, C. D. Richter, S. Ruhl, J. E. Saliwanchik, B. R. Schaffer, K. K. Schillaci, A. Schmitt, B. L. Schwarz, R. Sheehy, C. D. Sievers, C. Smecher, G. Soliman, A. Stark, A. A. Steinbach, B. Sudiwala, R. V. Teply, G. P. Thompson, K. L. Tolan, J. E. Tucker, C. Turner, A. D. Umiltà, C. Veach, T. Vieira, J. D. Vieregg, A. G. Wandui, A. Wang, G. Weber, A. C. Whitehorn, N. Wiebe, D. V. Willmert, J. Wong, C. L. Wu, W. L. K. Yang, H. Yefremenko, V. Yoon, K. W. Young, E. Yu, C. Zeng, L. Zhang, C. A Demonstration of Improved Constraints on Primordial Gravitational Waves with Delensing |
topic_facet |
Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences |
description |
We present a constraint on the tensor-to-scalar ratio, $r$, derived from measurements of cosmic microwave background (CMB) polarization $B$-modes with "delensing," whereby the uncertainty on $r$ contributed by the sample variance of the gravitational lensing $B$-modes is reduced by cross-correlating against a lensing $B$-mode template. This template is constructed by combining an estimate of the polarized CMB with a tracer of the projected large-scale structure. The large-scale-structure tracer used is a map of the cosmic infrared background derived from Planck satellite data, while the polarized CMB map comes from a combination of South Pole Telescope, BICEP/Keck, and Planck data. We expand the BICEP/Keck likelihood analysis framework to accept a lensing template and apply it to the BICEP/Keck data set collected through 2014 using the same parametric foreground modelling as in the previous analysis. From simulations, we find that the uncertainty on $r$ is reduced by $\sim10\%$, from $σ(r)$= 0.024 to 0.022, which can be compared with a $\sim26\%$ reduction obtained when using a perfect lensing template. Applying the technique to the real data, the constraint on $r$ is improved from $r_{0.05} < 0.090$ to $r_{0.05} < 0.082$ (95\% C.L.). This is the first demonstration of improvement in an $r$ constraint through delensing. : 23 pages, 11 figures; match published version |
format |
Article in Journal/Newspaper |
author |
BICEP/Keck Collaborations, SPTpol Ade, P. A. R. Ahmed, Z. Amiri, M. Anderson, A. J. Austermann, J. E. Avva, J. S. Barkats, D. Thakur, R. Basu Beall, J. A. Bender, A. N. Benson, B. A. Bianchini, F. Bischoff, C. A. Bleem, L. E. Bock, J. J. Boenish, H. Bullock, E. Buza, V. Carlstrom, J. E. Chang, C. L. Cheshire, J. R. Chiang, H. C. Chou, T-L. Citron, R. Connors, J. Moran, C. Corbett Cornelison, J. Crawford, T. M. Crites, A. T. Crumrine, M. Cukierman, A. de Haan, T. Dierickx, M. Dobbs, M. A. Duband, L. Everett, W. Fatigoni, S. Filippini, J. P. Fliescher, S. Gallicchio, J. George, E. M. Germaine, T. St. Goeckner-Wald, N. Goldfinger, D. C. Grayson, J. Gupta, N. Hall, G. Halpern, M. Halverson, N. W. Harrison, S. Henderson, S. Henning, J. W. Hildebrandt, S. R. Hilton, G. C. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Huang, N. Hubmayr, J. Hui, H. Irwin, K. D. Kang, J. Karkare, K. S. Karpel, E. Kefeli, S. Kernasovskiy, S. A. Knox, L. Kovac, J. M. Kuo, C. L. Lau, K. Lee, A. T. Leitch, E. M. Li, D. Lowitz, A. Manzotti, A. McMahon, J. J. Megerian, K. G. Meyer, S. S. Millea, M. Mocanu, L. M. Moncelsi, L. Montgomery, J. Nadolski, A. Namikawa, T. Natoli, T. Netterfield, C. B. Nguyen, H. T. Nibarger, J. P. Noble, G. Novosad, V. O'Brient, R. Ogburn, R. W. Omori, Y. Padin, S. Palladino, S. Patil, S. Prouve, T. Pryke, C. Racine, B. Reichardt, C. L. Reintsema, C. D. Richter, S. Ruhl, J. E. Saliwanchik, B. R. Schaffer, K. K. Schillaci, A. Schmitt, B. L. Schwarz, R. Sheehy, C. D. Sievers, C. Smecher, G. Soliman, A. Stark, A. A. Steinbach, B. Sudiwala, R. V. Teply, G. P. Thompson, K. L. Tolan, J. E. Tucker, C. Turner, A. D. Umiltà, C. Veach, T. Vieira, J. D. Vieregg, A. G. Wandui, A. Wang, G. Weber, A. C. Whitehorn, N. Wiebe, D. V. Willmert, J. Wong, C. L. Wu, W. L. K. Yang, H. Yefremenko, V. Yoon, K. W. Young, E. Yu, C. Zeng, L. Zhang, C. |
author_facet |
BICEP/Keck Collaborations, SPTpol Ade, P. A. R. Ahmed, Z. Amiri, M. Anderson, A. J. Austermann, J. E. Avva, J. S. Barkats, D. Thakur, R. Basu Beall, J. A. Bender, A. N. Benson, B. A. Bianchini, F. Bischoff, C. A. Bleem, L. E. Bock, J. J. Boenish, H. Bullock, E. Buza, V. Carlstrom, J. E. Chang, C. L. Cheshire, J. R. Chiang, H. C. Chou, T-L. Citron, R. Connors, J. Moran, C. Corbett Cornelison, J. Crawford, T. M. Crites, A. T. Crumrine, M. Cukierman, A. de Haan, T. Dierickx, M. Dobbs, M. A. Duband, L. Everett, W. Fatigoni, S. Filippini, J. P. Fliescher, S. Gallicchio, J. George, E. M. Germaine, T. St. Goeckner-Wald, N. Goldfinger, D. C. Grayson, J. Gupta, N. Hall, G. Halpern, M. Halverson, N. W. Harrison, S. Henderson, S. Henning, J. W. Hildebrandt, S. R. Hilton, G. C. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Huang, N. Hubmayr, J. Hui, H. Irwin, K. D. Kang, J. Karkare, K. S. Karpel, E. Kefeli, S. Kernasovskiy, S. A. Knox, L. Kovac, J. M. Kuo, C. L. Lau, K. Lee, A. T. Leitch, E. M. Li, D. Lowitz, A. Manzotti, A. McMahon, J. J. Megerian, K. G. Meyer, S. S. Millea, M. Mocanu, L. M. Moncelsi, L. Montgomery, J. Nadolski, A. Namikawa, T. Natoli, T. Netterfield, C. B. Nguyen, H. T. Nibarger, J. P. Noble, G. Novosad, V. O'Brient, R. Ogburn, R. W. Omori, Y. Padin, S. Palladino, S. Patil, S. Prouve, T. Pryke, C. Racine, B. Reichardt, C. L. Reintsema, C. D. Richter, S. Ruhl, J. E. Saliwanchik, B. R. Schaffer, K. K. Schillaci, A. Schmitt, B. L. Schwarz, R. Sheehy, C. D. Sievers, C. Smecher, G. Soliman, A. Stark, A. A. Steinbach, B. Sudiwala, R. V. Teply, G. P. Thompson, K. L. Tolan, J. E. Tucker, C. Turner, A. D. Umiltà, C. Veach, T. Vieira, J. D. Vieregg, A. G. Wandui, A. Wang, G. Weber, A. C. Whitehorn, N. Wiebe, D. V. Willmert, J. Wong, C. L. Wu, W. L. K. Yang, H. Yefremenko, V. Yoon, K. W. Young, E. Yu, C. Zeng, L. Zhang, C. |
author_sort |
BICEP/Keck |
title |
A Demonstration of Improved Constraints on Primordial Gravitational Waves with Delensing |
title_short |
A Demonstration of Improved Constraints on Primordial Gravitational Waves with Delensing |
title_full |
A Demonstration of Improved Constraints on Primordial Gravitational Waves with Delensing |
title_fullStr |
A Demonstration of Improved Constraints on Primordial Gravitational Waves with Delensing |
title_full_unstemmed |
A Demonstration of Improved Constraints on Primordial Gravitational Waves with Delensing |
title_sort |
demonstration of improved constraints on primordial gravitational waves with delensing |
publisher |
arXiv |
publishDate |
2020 |
url |
https://dx.doi.org/10.48550/arxiv.2011.08163 https://arxiv.org/abs/2011.08163 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://dx.doi.org/10.1103/physrevd.103.022004 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.2011.08163 https://doi.org/10.1103/physrevd.103.022004 |
_version_ |
1766202256922771456 |