A 2500 deg 2 CMB Lensing Map from Combined South Pole Telescope and Planck Data
© 2017. The American Astronomical Society. All rights reserved. We present a cosmic microwave background (CMB) lensing map produced from a linear combination of South Pole Telescope (SPT) and Planck temperature data. The 150 GHz temperature data from the 2500 deg2SPT-SZ survey is combined with the P...
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Language: | English |
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ftcdlib:qt08m9v5f6 2023-05-15T18:22:14+02:00 A 2500 deg 2 CMB Lensing Map from Combined South Pole Telescope and Planck Data Omori, Y Chown, R Simard, G Story, KT Aylor, K Baxter, EJ Benson, BA Bleem, LE Carlstrom, JE Chang, CL Cho, HM Crawford, TM Crites, AT Haan, TD Dobbs, MA Everett, WB George, EM Halverson, NW Harrington, NL Holder, GP Hou, Z Holzapfel, WL Hrubes, JD Knox, L Lee, AT Leitch, EM Luong-Van, D Manzotti, A Marrone, DP McMahon, JJ Meyer, SS Mocanu, LM Mohr, JJ Natoli, T Padin, S Pryke, C Reichardt, CL Ruhl, JE Sayre, JT Schaffer, KK Shirokoff, E Staniszewski, Z Stark, AA Vanderlinde, K Vieira, JD Williamson, R Zahn, O 2017-11-10 application/pdf http://www.escholarship.org/uc/item/08m9v5f6 english eng eScholarship, University of California qt08m9v5f6 http://www.escholarship.org/uc/item/08m9v5f6 public Omori, Y; Chown, R; Simard, G; Story, KT; Aylor, K; Baxter, EJ; et al.(2017). A 2500 deg 2 CMB Lensing Map from Combined South Pole Telescope and Planck Data. Astrophysical Journal, 849(2). doi:10.3847/1538-4357/aa8d1d. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/08m9v5f6 article 2017 ftcdlib https://doi.org/10.3847/1538-4357/aa8d1d 2018-06-29T22:52:06Z © 2017. The American Astronomical Society. All rights reserved. We present a cosmic microwave background (CMB) lensing map produced from a linear combination of South Pole Telescope (SPT) and Planck temperature data. The 150 GHz temperature data from the 2500 deg2SPT-SZ survey is combined with the Planck 143 GHz data in harmonic space to obtain a temperature map that has a broader ℓ coverage and less noise than either individual map. Using a quadratic estimator technique on this combined temperature map, we produce a map of the gravitational lensing potential projected along the line of sight. We measure the auto-spectrum of the lensing potential CLφφ, and compare it to the theoretical prediction for a ΛCDM cosmology consistent with the Planck 2015 data set, finding a best-fit amplitude of 0.95-0.06+0.06(stat.)0.01+0.01(sys.). The null hypothesis of no lensing is rejected at a significance of 24σ. One important use of such a lensing potential map is in cross-correlations with other dark matter tracers. We demonstrate this cross-correlation in practice by calculating the cross-spectrum, CLφG, between the SPT+Planck lensing map and Wide-field Infrared Survey Explorer (WISE) galaxies. We fit CLφGto a power law of the form PL= a(L/L0)-bwith a, L0, and b fixed, and find ηφG= CLφG/PL= 0.94-0.04+0.04, which is marginally lower, but in good agreement with ηφG= 1.00-0.01+0.02, the best-fit amplitude for the cross-correlation of Planck-2015 CMB lensing and WISE galaxies over ∼67% of the sky. The lensing potential map presented here will be used for cross-correlation studies with the Dark Energy Survey, whose footprint nearly completely covers the SPT 2500 deg2field. Article in Journal/Newspaper South pole University of California: eScholarship South Pole The Astrophysical Journal 849 2 124 |
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University of California: eScholarship |
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ftcdlib |
language |
English |
description |
© 2017. The American Astronomical Society. All rights reserved. We present a cosmic microwave background (CMB) lensing map produced from a linear combination of South Pole Telescope (SPT) and Planck temperature data. The 150 GHz temperature data from the 2500 deg2SPT-SZ survey is combined with the Planck 143 GHz data in harmonic space to obtain a temperature map that has a broader ℓ coverage and less noise than either individual map. Using a quadratic estimator technique on this combined temperature map, we produce a map of the gravitational lensing potential projected along the line of sight. We measure the auto-spectrum of the lensing potential CLφφ, and compare it to the theoretical prediction for a ΛCDM cosmology consistent with the Planck 2015 data set, finding a best-fit amplitude of 0.95-0.06+0.06(stat.)0.01+0.01(sys.). The null hypothesis of no lensing is rejected at a significance of 24σ. One important use of such a lensing potential map is in cross-correlations with other dark matter tracers. We demonstrate this cross-correlation in practice by calculating the cross-spectrum, CLφG, between the SPT+Planck lensing map and Wide-field Infrared Survey Explorer (WISE) galaxies. We fit CLφGto a power law of the form PL= a(L/L0)-bwith a, L0, and b fixed, and find ηφG= CLφG/PL= 0.94-0.04+0.04, which is marginally lower, but in good agreement with ηφG= 1.00-0.01+0.02, the best-fit amplitude for the cross-correlation of Planck-2015 CMB lensing and WISE galaxies over ∼67% of the sky. The lensing potential map presented here will be used for cross-correlation studies with the Dark Energy Survey, whose footprint nearly completely covers the SPT 2500 deg2field. |
format |
Article in Journal/Newspaper |
author |
Omori, Y Chown, R Simard, G Story, KT Aylor, K Baxter, EJ Benson, BA Bleem, LE Carlstrom, JE Chang, CL Cho, HM Crawford, TM Crites, AT Haan, TD Dobbs, MA Everett, WB George, EM Halverson, NW Harrington, NL Holder, GP Hou, Z Holzapfel, WL Hrubes, JD Knox, L Lee, AT Leitch, EM Luong-Van, D Manzotti, A Marrone, DP McMahon, JJ Meyer, SS Mocanu, LM Mohr, JJ Natoli, T Padin, S Pryke, C Reichardt, CL Ruhl, JE Sayre, JT Schaffer, KK Shirokoff, E Staniszewski, Z Stark, AA Vanderlinde, K Vieira, JD Williamson, R Zahn, O |
spellingShingle |
Omori, Y Chown, R Simard, G Story, KT Aylor, K Baxter, EJ Benson, BA Bleem, LE Carlstrom, JE Chang, CL Cho, HM Crawford, TM Crites, AT Haan, TD Dobbs, MA Everett, WB George, EM Halverson, NW Harrington, NL Holder, GP Hou, Z Holzapfel, WL Hrubes, JD Knox, L Lee, AT Leitch, EM Luong-Van, D Manzotti, A Marrone, DP McMahon, JJ Meyer, SS Mocanu, LM Mohr, JJ Natoli, T Padin, S Pryke, C Reichardt, CL Ruhl, JE Sayre, JT Schaffer, KK Shirokoff, E Staniszewski, Z Stark, AA Vanderlinde, K Vieira, JD Williamson, R Zahn, O A 2500 deg 2 CMB Lensing Map from Combined South Pole Telescope and Planck Data |
author_facet |
Omori, Y Chown, R Simard, G Story, KT Aylor, K Baxter, EJ Benson, BA Bleem, LE Carlstrom, JE Chang, CL Cho, HM Crawford, TM Crites, AT Haan, TD Dobbs, MA Everett, WB George, EM Halverson, NW Harrington, NL Holder, GP Hou, Z Holzapfel, WL Hrubes, JD Knox, L Lee, AT Leitch, EM Luong-Van, D Manzotti, A Marrone, DP McMahon, JJ Meyer, SS Mocanu, LM Mohr, JJ Natoli, T Padin, S Pryke, C Reichardt, CL Ruhl, JE Sayre, JT Schaffer, KK Shirokoff, E Staniszewski, Z Stark, AA Vanderlinde, K Vieira, JD Williamson, R Zahn, O |
author_sort |
Omori, Y |
title |
A 2500 deg 2 CMB Lensing Map from Combined South Pole Telescope and Planck Data |
title_short |
A 2500 deg 2 CMB Lensing Map from Combined South Pole Telescope and Planck Data |
title_full |
A 2500 deg 2 CMB Lensing Map from Combined South Pole Telescope and Planck Data |
title_fullStr |
A 2500 deg 2 CMB Lensing Map from Combined South Pole Telescope and Planck Data |
title_full_unstemmed |
A 2500 deg 2 CMB Lensing Map from Combined South Pole Telescope and Planck Data |
title_sort |
2500 deg 2 cmb lensing map from combined south pole telescope and planck data |
publisher |
eScholarship, University of California |
publishDate |
2017 |
url |
http://www.escholarship.org/uc/item/08m9v5f6 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Omori, Y; Chown, R; Simard, G; Story, KT; Aylor, K; Baxter, EJ; et al.(2017). A 2500 deg 2 CMB Lensing Map from Combined South Pole Telescope and Planck Data. Astrophysical Journal, 849(2). doi:10.3847/1538-4357/aa8d1d. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/08m9v5f6 |
op_relation |
qt08m9v5f6 http://www.escholarship.org/uc/item/08m9v5f6 |
op_rights |
public |
op_doi |
https://doi.org/10.3847/1538-4357/aa8d1d |
container_title |
The Astrophysical Journal |
container_volume |
849 |
container_issue |
2 |
container_start_page |
124 |
_version_ |
1766201619270074368 |