Joint analysis of Dark Energy Survey Year 3 data and CMB lensing from SPT and Planck. I. Construction of CMB lensing maps and modeling choices
Joint analyses of cross-correlations between measurements of galaxy positions, galaxy lensing, and lensing of the cosmic microwave background (CMB) offer powerful constraints on the large-scale structure of the Universe. In a forthcoming analysis, we will present cosmological constraints from the an...
Published in: | Physical Review D |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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American Physical Society
2023
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Subjects: | |
Online Access: | http://hdl.handle.net/10852/103875 https://doi.org/10.1103/PhysRevD.107.023529 |
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openpolar |
institution |
Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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ftoslouniv |
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English |
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VDP::Astrofysikk astronomi: 438 |
spellingShingle |
VDP::Astrofysikk astronomi: 438 Omori, Y. Baxter, E.J. Chang, C. Friedrich, O. Alarcon, A. Alves, O. Amon, A. Andrade-Oliveira, F. Bechtol, K. Becker, M.R. Bernstein, G.M. Blazek, J. Bleem, L.E. Camacho, H. Campos, A. Carnero Rosell, A. Carrasco Kind, M. Cawthon, R. Chen, R. Choi, A. Cordero, J. Crawford, T.M. Crocce, M. Davis, C. DeRose, J. Dodelson, S. Doux, C. Drlica-Wagner, A. Eckert, K. Eifler, T.F. Elsner, F. Elvin-Poole, J. Everett, S. Fang, X. Ferté, A. Fosalba, P. Gatti, M. Giannini, G. Gruen, D. Gruendl, R.A. Harrison, I. Herner, K. Huang, H. Huff, E.M. Huterer, D. Jarvis, M. Krause, E. Kuropatkin, N. Leget, P.-F. Lemos, P. Liddle, A.R. MacCrann, N. McCullough, J. Muir, J. Myles, J. Navarro-Alsina, A. Pandey, S. Park, Y. Porredon, A. Prat, J. Raveri, M. Rollins, R.P. Roodman, A. Rosenfeld, R. Ross, A.J. Rykoff, E.S. Sánchez, C. Sanchez, J. Secco, L.F. Sevilla-Noarbe, I. Sheldon, E. Shin, T. Troxel, M.A. Tutusaus, I. Varga, T.N. Weaverdyck, N. Wechsler, R.H. Wu, W.L.K. Yanny, B. Yin, B. Zhang, Y. Zuntz, Joseph Abbott, T.M.C. Aguena, M. Allam, S. Annis, J. Bacon, D. Benson, B.A. Bertin, E. Bocquet, S. Brooks, D. Burke, D.L. Carlstrom, J.E. Carretero, J. Chang, C.L. Chown, R. Costanzi, M. da Costa, L.N. Crites, A.T. Pereira, M.E.S. de Haan, T. De Vicente, J. Desai, S. Diehl, H.T. Dobbs, M.A. Doel, P. Everett, W. Ferrero, Ismael Flaugher, B. Friedel, D. Frieman, J. García-Bellido, J. Gaztanaga, E. George, E.M. Giannantonio, T. Halverson, N.W. Hinton, S.R. Holder, G.P. Hollowood, D.L. Holzapfel, W.L. Honscheid, K. Hrubes, J.D. James, D.J. Knox, L. Kuehn, K. Lahav, O. Lee, A.T. Lima, M. Luong-Van, D. March, M. McMahon, J.J. Melchior, P. Menanteau, F. Meyer, S.S. Miquel, R. Mocanu, Laura-Monica Mohr, J.J. Morgan, R. Natoli, T. Padin, S. Palmese, A. Paz-Chinchón, F. Pieres, A. Plazas Malagón, A.A. Pryke, C. Reichardt, C.L. Romer, A.K. Ruhl, J.E. Sanchez, E. Schaffer, K.K. Schubnell, M. Serrano, S. Shirokoff, E. Smith, M. Staniszewski, Z. Stark, A.A. Suchyta, E. Tarle, G. Thomas, D. To, C. Vieira, J.D. Weller, J. Williamson, R. Joint analysis of Dark Energy Survey Year 3 data and CMB lensing from SPT and Planck. I. Construction of CMB lensing maps and modeling choices |
topic_facet |
VDP::Astrofysikk astronomi: 438 |
description |
Joint analyses of cross-correlations between measurements of galaxy positions, galaxy lensing, and lensing of the cosmic microwave background (CMB) offer powerful constraints on the large-scale structure of the Universe. In a forthcoming analysis, we will present cosmological constraints from the analysis of such cross-correlations measured using Year 3 data from the Dark Energy Survey (DES), and CMB data from the South Pole Telescope (SPT) and Planck. Here we present two key ingredients of this analysis: (1) an improved CMB lensing map in the SPT-SZ survey footprint and (2) the analysis methodology that will be used to extract cosmological information from the cross-correlation measurements. Relative to previous lensing maps made from the same CMB observations, we have implemented techniques to remove contamination from the thermal Sunyaev Zel’dovich effect, enabling the extraction of cosmological information from smaller angular scales of the cross-correlation measurements than in previous analyses with DES Year 1 data. We describe our model for the cross-correlations between these maps and DES data, and validate our modeling choices to demonstrate the robustness of our analysis. We then forecast the expected cosmological constraints from the galaxy survey-CMB lensing auto and cross-correlations. We find that the galaxy-CMB lensing and galaxy shear-CMB lensing correlations will on their own provide a constraint on S8=σ8√Ωm/0.3 at the few percent level, providing a powerful consistency check for the DES-only constraints. We explore scenarios where external priors on shear calibration are removed, finding that the joint analysis of CMB lensing cross-correlations can provide constraints on the shear calibration amplitude at the 5% to 10% level. |
format |
Article in Journal/Newspaper |
author |
Omori, Y. Baxter, E.J. Chang, C. Friedrich, O. Alarcon, A. Alves, O. Amon, A. Andrade-Oliveira, F. Bechtol, K. Becker, M.R. Bernstein, G.M. Blazek, J. Bleem, L.E. Camacho, H. Campos, A. Carnero Rosell, A. Carrasco Kind, M. Cawthon, R. Chen, R. Choi, A. Cordero, J. Crawford, T.M. Crocce, M. Davis, C. DeRose, J. Dodelson, S. Doux, C. Drlica-Wagner, A. Eckert, K. Eifler, T.F. Elsner, F. Elvin-Poole, J. Everett, S. Fang, X. Ferté, A. Fosalba, P. Gatti, M. Giannini, G. Gruen, D. Gruendl, R.A. Harrison, I. Herner, K. Huang, H. Huff, E.M. Huterer, D. Jarvis, M. Krause, E. Kuropatkin, N. Leget, P.-F. Lemos, P. Liddle, A.R. MacCrann, N. McCullough, J. Muir, J. Myles, J. Navarro-Alsina, A. Pandey, S. Park, Y. Porredon, A. Prat, J. Raveri, M. Rollins, R.P. Roodman, A. Rosenfeld, R. Ross, A.J. Rykoff, E.S. Sánchez, C. Sanchez, J. Secco, L.F. Sevilla-Noarbe, I. Sheldon, E. Shin, T. Troxel, M.A. Tutusaus, I. Varga, T.N. Weaverdyck, N. Wechsler, R.H. Wu, W.L.K. Yanny, B. Yin, B. Zhang, Y. Zuntz, Joseph Abbott, T.M.C. Aguena, M. Allam, S. Annis, J. Bacon, D. Benson, B.A. Bertin, E. Bocquet, S. Brooks, D. Burke, D.L. Carlstrom, J.E. Carretero, J. Chang, C.L. Chown, R. Costanzi, M. da Costa, L.N. Crites, A.T. Pereira, M.E.S. de Haan, T. De Vicente, J. Desai, S. Diehl, H.T. Dobbs, M.A. Doel, P. Everett, W. Ferrero, Ismael Flaugher, B. Friedel, D. Frieman, J. García-Bellido, J. Gaztanaga, E. George, E.M. Giannantonio, T. Halverson, N.W. Hinton, S.R. Holder, G.P. Hollowood, D.L. Holzapfel, W.L. Honscheid, K. Hrubes, J.D. James, D.J. Knox, L. Kuehn, K. Lahav, O. Lee, A.T. Lima, M. Luong-Van, D. March, M. McMahon, J.J. Melchior, P. Menanteau, F. Meyer, S.S. Miquel, R. Mocanu, Laura-Monica Mohr, J.J. Morgan, R. Natoli, T. Padin, S. Palmese, A. Paz-Chinchón, F. Pieres, A. Plazas Malagón, A.A. Pryke, C. Reichardt, C.L. Romer, A.K. Ruhl, J.E. Sanchez, E. Schaffer, K.K. Schubnell, M. Serrano, S. Shirokoff, E. Smith, M. Staniszewski, Z. Stark, A.A. Suchyta, E. Tarle, G. Thomas, D. To, C. Vieira, J.D. Weller, J. Williamson, R. |
author_facet |
Omori, Y. Baxter, E.J. Chang, C. Friedrich, O. Alarcon, A. Alves, O. Amon, A. Andrade-Oliveira, F. Bechtol, K. Becker, M.R. Bernstein, G.M. Blazek, J. Bleem, L.E. Camacho, H. Campos, A. Carnero Rosell, A. Carrasco Kind, M. Cawthon, R. Chen, R. Choi, A. Cordero, J. Crawford, T.M. Crocce, M. Davis, C. DeRose, J. Dodelson, S. Doux, C. Drlica-Wagner, A. Eckert, K. Eifler, T.F. Elsner, F. Elvin-Poole, J. Everett, S. Fang, X. Ferté, A. Fosalba, P. Gatti, M. Giannini, G. Gruen, D. Gruendl, R.A. Harrison, I. Herner, K. Huang, H. Huff, E.M. Huterer, D. Jarvis, M. Krause, E. Kuropatkin, N. Leget, P.-F. Lemos, P. Liddle, A.R. MacCrann, N. McCullough, J. Muir, J. Myles, J. Navarro-Alsina, A. Pandey, S. Park, Y. Porredon, A. Prat, J. Raveri, M. Rollins, R.P. Roodman, A. Rosenfeld, R. Ross, A.J. Rykoff, E.S. Sánchez, C. Sanchez, J. Secco, L.F. Sevilla-Noarbe, I. Sheldon, E. Shin, T. Troxel, M.A. Tutusaus, I. Varga, T.N. Weaverdyck, N. Wechsler, R.H. Wu, W.L.K. Yanny, B. Yin, B. Zhang, Y. Zuntz, Joseph Abbott, T.M.C. Aguena, M. Allam, S. Annis, J. Bacon, D. Benson, B.A. Bertin, E. Bocquet, S. Brooks, D. Burke, D.L. Carlstrom, J.E. Carretero, J. Chang, C.L. Chown, R. Costanzi, M. da Costa, L.N. Crites, A.T. Pereira, M.E.S. de Haan, T. De Vicente, J. Desai, S. Diehl, H.T. Dobbs, M.A. Doel, P. Everett, W. Ferrero, Ismael Flaugher, B. Friedel, D. Frieman, J. García-Bellido, J. Gaztanaga, E. George, E.M. Giannantonio, T. Halverson, N.W. Hinton, S.R. Holder, G.P. Hollowood, D.L. Holzapfel, W.L. Honscheid, K. Hrubes, J.D. James, D.J. Knox, L. Kuehn, K. Lahav, O. Lee, A.T. Lima, M. Luong-Van, D. March, M. McMahon, J.J. Melchior, P. Menanteau, F. Meyer, S.S. Miquel, R. Mocanu, Laura-Monica Mohr, J.J. Morgan, R. Natoli, T. Padin, S. Palmese, A. Paz-Chinchón, F. Pieres, A. Plazas Malagón, A.A. Pryke, C. Reichardt, C.L. Romer, A.K. Ruhl, J.E. Sanchez, E. Schaffer, K.K. Schubnell, M. Serrano, S. Shirokoff, E. Smith, M. Staniszewski, Z. Stark, A.A. Suchyta, E. Tarle, G. Thomas, D. To, C. Vieira, J.D. Weller, J. Williamson, R. |
author_sort |
Omori, Y. |
title |
Joint analysis of Dark Energy Survey Year 3 data and CMB lensing from SPT and Planck. I. Construction of CMB lensing maps and modeling choices |
title_short |
Joint analysis of Dark Energy Survey Year 3 data and CMB lensing from SPT and Planck. I. Construction of CMB lensing maps and modeling choices |
title_full |
Joint analysis of Dark Energy Survey Year 3 data and CMB lensing from SPT and Planck. I. Construction of CMB lensing maps and modeling choices |
title_fullStr |
Joint analysis of Dark Energy Survey Year 3 data and CMB lensing from SPT and Planck. I. Construction of CMB lensing maps and modeling choices |
title_full_unstemmed |
Joint analysis of Dark Energy Survey Year 3 data and CMB lensing from SPT and Planck. I. Construction of CMB lensing maps and modeling choices |
title_sort |
joint analysis of dark energy survey year 3 data and cmb lensing from spt and planck. i. construction of cmb lensing maps and modeling choices |
publisher |
American Physical Society |
publishDate |
2023 |
url |
http://hdl.handle.net/10852/103875 https://doi.org/10.1103/PhysRevD.107.023529 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
2470-0010 |
op_relation |
NFR/287772 Omori, Y. Baxter, E.J. Chang, C. Friedrich, O. Alarcon, A. Alves, O. Amon, A. Andrade-Oliveira, F. Bechtol, K. Becker, M.R. Bernstein, G.M. Blazek, J. Bleem, L.E. Camacho, H. Campos, A. Carnero Rosell, A. Carrasco Kind, M. Cawthon, R. Chen, R. Choi, A. Cordero, J. Crawford, T.M. Crocce, M. Davis, C. DeRose, J. Dodelson, S. Doux, C. Drlica-Wagner, A. Eckert, K. Eifler, T.F. Elsner, F. Elvin-Poole, J. Everett, S. Fang, X. Ferté, A. Fosalba, P. Gatti, M. Giannini, G. Gruen, D. Gruendl, R.A. Harrison, I. Herner, K. Huang, H. Huff, E.M. Huterer, D. Jarvis, M. Krause, E. Kuropatkin, N. Leget, P.-F. Lemos, P. Liddle, A.R. MacCrann, N. McCullough, J. Muir, J. Myles, J. Navarro-Alsina, A. Pandey, S. Park, Y. Porredon, A. Prat, J. Raveri, M. Rollins, R.P. Roodman, A. Rosenfeld, R. Ross, A.J. Rykoff, E.S. Sánchez, C. Sanchez, J. Secco, L.F. Sevilla-Noarbe, I. Sheldon, E. Shin, T. Troxel, M.A. Tutusaus, I. Varga, T.N. Weaverdyck, N. Wechsler, R.H. Wu, W.L.K. Yanny, B. Yin, B. Zhang, Y. Zuntz, Joseph Abbott, T.M.C. Aguena, M. Allam, S. Annis, J. Bacon, D. Benson, B.A. Bertin, E. Bocquet, S. Brooks, D. Burke, D.L. Carlstrom, J.E. Carretero, J. Chang, C.L. Chown, R. Costanzi, M. da Costa, L.N. Crites, A.T. Pereira, M.E.S. de Haan, T. De Vicente, J. Desai, S. Diehl, H.T. Dobbs, M.A. Doel, P. Everett, W. Ferrero, Ismael Flaugher, B. Friedel, D. Frieman, J. García-Bellido, J. Gaztanaga, E. George, E.M. Giannantonio, T. Halverson, N.W. Hinton, S.R. Holder, G.P. Hollowood, D.L. Holzapfel, W.L. Honscheid, K. Hrubes, J.D. James, D.J. Knox, L. Kuehn, K. Lahav, O. Lee, A.T. Lima, M. Luong-Van, D. March, M. McMahon, J.J. Melchior, P. Menanteau, F. Meyer, S.S. Miquel, R. Mocanu, Laura-Monica Mohr, J.J. Morgan, R. Natoli, T. Padin, S. Palmese, A. Paz-Chinchón, F. Pieres, A. Plazas Malagón, A.A. Pryke, C. Reichardt, C.L. Romer, A.K. Ruhl, J.E. Sanchez, E. Schaffer, K.K. Schubnell, M. Serrano, S. Shirokoff, E. Smith, M. Staniszewski, Z. Stark, A.A. Suchyta, E. Tarle, G. Thomas, D. To, C. Vieira, J.D. Weller, J. Williamson, R. . Joint analysis of Dark Energy Survey Year 3 data and CMB lensing from SPT and Planck. I. Construction of CMB lensing maps and modeling choices. Physical Review D. 2023, 107(2) http://hdl.handle.net/10852/103875 2151029 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review D&rft.volume=107&rft.spage=&rft.date=2023 Physical Review D 107 2 30 https://doi.org/10.1103/PhysRevD.107.023529 |
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https://doi.org/10.1103/PhysRevD.107.023529 |
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Physical Review D |
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ftoslouniv:oai:www.duo.uio.no:10852/103875 2023-09-26T15:23:12+02:00 Joint analysis of Dark Energy Survey Year 3 data and CMB lensing from SPT and Planck. I. Construction of CMB lensing maps and modeling choices ENEngelskEnglishJoint analysis of Dark Energy Survey Year 3 data and CMB lensing from SPT and Planck. I. Construction of CMB lensing maps and modeling choices Omori, Y. Baxter, E.J. Chang, C. Friedrich, O. Alarcon, A. Alves, O. Amon, A. Andrade-Oliveira, F. Bechtol, K. Becker, M.R. Bernstein, G.M. Blazek, J. Bleem, L.E. Camacho, H. Campos, A. Carnero Rosell, A. Carrasco Kind, M. Cawthon, R. Chen, R. Choi, A. Cordero, J. Crawford, T.M. Crocce, M. Davis, C. DeRose, J. Dodelson, S. Doux, C. Drlica-Wagner, A. Eckert, K. Eifler, T.F. Elsner, F. Elvin-Poole, J. Everett, S. Fang, X. Ferté, A. Fosalba, P. Gatti, M. Giannini, G. Gruen, D. Gruendl, R.A. Harrison, I. Herner, K. Huang, H. Huff, E.M. Huterer, D. Jarvis, M. Krause, E. Kuropatkin, N. Leget, P.-F. Lemos, P. Liddle, A.R. MacCrann, N. McCullough, J. Muir, J. Myles, J. Navarro-Alsina, A. Pandey, S. Park, Y. Porredon, A. Prat, J. Raveri, M. Rollins, R.P. Roodman, A. Rosenfeld, R. Ross, A.J. Rykoff, E.S. Sánchez, C. Sanchez, J. Secco, L.F. Sevilla-Noarbe, I. Sheldon, E. Shin, T. Troxel, M.A. Tutusaus, I. Varga, T.N. Weaverdyck, N. Wechsler, R.H. Wu, W.L.K. Yanny, B. Yin, B. Zhang, Y. Zuntz, Joseph Abbott, T.M.C. Aguena, M. Allam, S. Annis, J. Bacon, D. Benson, B.A. Bertin, E. Bocquet, S. Brooks, D. Burke, D.L. Carlstrom, J.E. Carretero, J. Chang, C.L. Chown, R. Costanzi, M. da Costa, L.N. Crites, A.T. Pereira, M.E.S. de Haan, T. De Vicente, J. Desai, S. Diehl, H.T. Dobbs, M.A. Doel, P. Everett, W. Ferrero, Ismael Flaugher, B. Friedel, D. Frieman, J. García-Bellido, J. Gaztanaga, E. George, E.M. Giannantonio, T. Halverson, N.W. Hinton, S.R. Holder, G.P. Hollowood, D.L. Holzapfel, W.L. Honscheid, K. Hrubes, J.D. James, D.J. Knox, L. Kuehn, K. Lahav, O. Lee, A.T. Lima, M. Luong-Van, D. March, M. McMahon, J.J. Melchior, P. Menanteau, F. Meyer, S.S. Miquel, R. Mocanu, Laura-Monica Mohr, J.J. Morgan, R. Natoli, T. Padin, S. Palmese, A. Paz-Chinchón, F. Pieres, A. Plazas Malagón, A.A. Pryke, C. Reichardt, C.L. Romer, A.K. Ruhl, J.E. Sanchez, E. Schaffer, K.K. Schubnell, M. Serrano, S. Shirokoff, E. Smith, M. Staniszewski, Z. Stark, A.A. Suchyta, E. Tarle, G. Thomas, D. To, C. Vieira, J.D. Weller, J. Williamson, R. 2023-06-02T07:43:44Z http://hdl.handle.net/10852/103875 https://doi.org/10.1103/PhysRevD.107.023529 EN eng American Physical Society NFR/287772 Omori, Y. Baxter, E.J. Chang, C. Friedrich, O. Alarcon, A. Alves, O. Amon, A. Andrade-Oliveira, F. Bechtol, K. Becker, M.R. Bernstein, G.M. Blazek, J. Bleem, L.E. Camacho, H. Campos, A. Carnero Rosell, A. Carrasco Kind, M. Cawthon, R. Chen, R. Choi, A. Cordero, J. Crawford, T.M. Crocce, M. Davis, C. DeRose, J. Dodelson, S. Doux, C. Drlica-Wagner, A. Eckert, K. Eifler, T.F. Elsner, F. Elvin-Poole, J. Everett, S. Fang, X. Ferté, A. Fosalba, P. Gatti, M. Giannini, G. Gruen, D. Gruendl, R.A. Harrison, I. Herner, K. Huang, H. Huff, E.M. Huterer, D. Jarvis, M. Krause, E. Kuropatkin, N. Leget, P.-F. Lemos, P. Liddle, A.R. MacCrann, N. McCullough, J. Muir, J. Myles, J. Navarro-Alsina, A. Pandey, S. Park, Y. Porredon, A. Prat, J. Raveri, M. Rollins, R.P. Roodman, A. Rosenfeld, R. Ross, A.J. Rykoff, E.S. Sánchez, C. Sanchez, J. Secco, L.F. Sevilla-Noarbe, I. Sheldon, E. Shin, T. Troxel, M.A. Tutusaus, I. Varga, T.N. Weaverdyck, N. Wechsler, R.H. Wu, W.L.K. Yanny, B. Yin, B. Zhang, Y. Zuntz, Joseph Abbott, T.M.C. Aguena, M. Allam, S. Annis, J. Bacon, D. Benson, B.A. Bertin, E. Bocquet, S. Brooks, D. Burke, D.L. Carlstrom, J.E. Carretero, J. Chang, C.L. Chown, R. Costanzi, M. da Costa, L.N. Crites, A.T. Pereira, M.E.S. de Haan, T. De Vicente, J. Desai, S. Diehl, H.T. Dobbs, M.A. Doel, P. Everett, W. Ferrero, Ismael Flaugher, B. Friedel, D. Frieman, J. García-Bellido, J. Gaztanaga, E. George, E.M. Giannantonio, T. Halverson, N.W. Hinton, S.R. Holder, G.P. Hollowood, D.L. Holzapfel, W.L. Honscheid, K. Hrubes, J.D. James, D.J. Knox, L. Kuehn, K. Lahav, O. Lee, A.T. Lima, M. Luong-Van, D. March, M. McMahon, J.J. Melchior, P. Menanteau, F. Meyer, S.S. Miquel, R. Mocanu, Laura-Monica Mohr, J.J. Morgan, R. Natoli, T. Padin, S. Palmese, A. Paz-Chinchón, F. Pieres, A. Plazas Malagón, A.A. Pryke, C. Reichardt, C.L. Romer, A.K. Ruhl, J.E. Sanchez, E. Schaffer, K.K. Schubnell, M. Serrano, S. Shirokoff, E. Smith, M. Staniszewski, Z. Stark, A.A. Suchyta, E. Tarle, G. Thomas, D. To, C. Vieira, J.D. Weller, J. Williamson, R. . Joint analysis of Dark Energy Survey Year 3 data and CMB lensing from SPT and Planck. I. Construction of CMB lensing maps and modeling choices. Physical Review D. 2023, 107(2) http://hdl.handle.net/10852/103875 2151029 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review D&rft.volume=107&rft.spage=&rft.date=2023 Physical Review D 107 2 30 https://doi.org/10.1103/PhysRevD.107.023529 2470-0010 VDP::Astrofysikk astronomi: 438 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2023 ftoslouniv https://doi.org/10.1103/PhysRevD.107.023529 2023-08-30T22:39:08Z Joint analyses of cross-correlations between measurements of galaxy positions, galaxy lensing, and lensing of the cosmic microwave background (CMB) offer powerful constraints on the large-scale structure of the Universe. In a forthcoming analysis, we will present cosmological constraints from the analysis of such cross-correlations measured using Year 3 data from the Dark Energy Survey (DES), and CMB data from the South Pole Telescope (SPT) and Planck. Here we present two key ingredients of this analysis: (1) an improved CMB lensing map in the SPT-SZ survey footprint and (2) the analysis methodology that will be used to extract cosmological information from the cross-correlation measurements. Relative to previous lensing maps made from the same CMB observations, we have implemented techniques to remove contamination from the thermal Sunyaev Zel’dovich effect, enabling the extraction of cosmological information from smaller angular scales of the cross-correlation measurements than in previous analyses with DES Year 1 data. We describe our model for the cross-correlations between these maps and DES data, and validate our modeling choices to demonstrate the robustness of our analysis. We then forecast the expected cosmological constraints from the galaxy survey-CMB lensing auto and cross-correlations. We find that the galaxy-CMB lensing and galaxy shear-CMB lensing correlations will on their own provide a constraint on S8=σ8√Ωm/0.3 at the few percent level, providing a powerful consistency check for the DES-only constraints. We explore scenarios where external priors on shear calibration are removed, finding that the joint analysis of CMB lensing cross-correlations can provide constraints on the shear calibration amplitude at the 5% to 10% level. Article in Journal/Newspaper South pole Universitet i Oslo: Digitale utgivelser ved UiO (DUO) South Pole Physical Review D 107 2 |