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 c...
Published in: | Physical Review D |
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Language: | unknown |
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2022
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Online Access: | http://www.osti.gov/servlets/purl/1763602 https://www.osti.gov/biblio/1763602 https://doi.org/10.1103/physrevd.103.022004 |
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ftosti:oai:osti.gov:1763602 2023-07-30T04:06:54+02:00 A demonstration of improved constraints on primordial gravitational waves with delensing 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. 2022-09-14 application/pdf http://www.osti.gov/servlets/purl/1763602 https://www.osti.gov/biblio/1763602 https://doi.org/10.1103/physrevd.103.022004 unknown http://www.osti.gov/servlets/purl/1763602 https://www.osti.gov/biblio/1763602 https://doi.org/10.1103/physrevd.103.022004 doi:10.1103/physrevd.103.022004 79 ASTRONOMY AND ASTROPHYSICS 2022 ftosti https://doi.org/10.1103/physrevd.103.022004 2023-07-11T10:01:06Z 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 $\sigma(r)$= 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.). Furthermore, this is the first demonstration of improvement in an $r$ constraint through delensing. Other/Unknown Material South pole SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) South Pole Physical Review D 103 2 |
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79 ASTRONOMY AND ASTROPHYSICS |
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79 ASTRONOMY AND ASTROPHYSICS 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 |
79 ASTRONOMY AND ASTROPHYSICS |
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 $\sigma(r)$= 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.). Furthermore, this is the first demonstration of improvement in an $r$ constraint through delensing. |
author |
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 |
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 |
Ade, P. A. R. |
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 |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1763602 https://www.osti.gov/biblio/1763602 https://doi.org/10.1103/physrevd.103.022004 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://www.osti.gov/servlets/purl/1763602 https://www.osti.gov/biblio/1763602 https://doi.org/10.1103/physrevd.103.022004 doi:10.1103/physrevd.103.022004 |
op_doi |
https://doi.org/10.1103/physrevd.103.022004 |
container_title |
Physical Review D |
container_volume |
103 |
container_issue |
2 |
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1772819852214403072 |