A Comparison of Maps and Power Spectra Determined from South Pole Telescope and Planck Data

We study the consistency of 150 GHz data from the South Pole Telescope (SPT) and 143 GHz data from the Planck satellite over the patch of sky covered by the SPT-SZ survey. We first visually compare the maps and find that the residuals appear consistent with noise after accounting for differences in...

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Main Authors: Hou, Z., Aylor, K., Benson, B. A., Bleem, L. E., Carlstrom, J. E., Chang, C. L., Cho, H-M., Chown, R., Crawford, T. M., Crites, A. T., de Haan, T., Dobbs, M. A., Everett, W. B., Follin, B., George, E. M., Halverson, N. W., Harrington, N. L., Holder, G. P., Holzapfel, W. L., Hrubes, J. D., Keisler, R., Knox, L., Lee, A. T., Leitch, E. M., Luong-Van, D., Marrone, D. P., McMahon, J. J., Meyer, S. S., Millea, M., Mocanu, L. M., Mohr, J. J., Natoli, T., Omori, Y., Padin, S., Pryke, C., Reichardt, C. L., Ruhl, J. E., Sayre, J. T., Schaffer, K. K., Shirokoff, E., Staniszewski, Z., Stark, A. A., Story, K. T., Vanderlinde, K., Vieira, J. D., Williamson, R.
Format: Text
Language:unknown
Published: arXiv 2017
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Online Access:https://dx.doi.org/10.48550/arxiv.1704.00884
https://arxiv.org/abs/1704.00884
id ftdatacite:10.48550/arxiv.1704.00884
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spelling ftdatacite:10.48550/arxiv.1704.00884 2023-05-15T18:22:13+02:00 A Comparison of Maps and Power Spectra Determined from South Pole Telescope and Planck Data Hou, Z. Aylor, K. Benson, B. A. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Cho, H-M. Chown, R. Crawford, T. M. Crites, A. T. de Haan, T. Dobbs, M. A. Everett, W. B. Follin, B. George, E. M. Halverson, N. W. Harrington, N. L. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Luong-Van, D. Marrone, D. P. McMahon, J. J. Meyer, S. S. Millea, M. Mocanu, L. M. Mohr, J. J. Natoli, T. Omori, Y. Padin, S. Pryke, C. Reichardt, C. L. Ruhl, J. E. Sayre, J. T. Schaffer, K. K. Shirokoff, E. Staniszewski, Z. Stark, A. A. Story, K. T. Vanderlinde, K. Vieira, J. D. Williamson, R. 2017 https://dx.doi.org/10.48550/arxiv.1704.00884 https://arxiv.org/abs/1704.00884 unknown arXiv https://dx.doi.org/10.3847/1538-4357/aaa3ef 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 2017 ftdatacite https://doi.org/10.48550/arxiv.1704.00884 https://doi.org/10.3847/1538-4357/aaa3ef 2022-04-01T10:53:31Z We study the consistency of 150 GHz data from the South Pole Telescope (SPT) and 143 GHz data from the Planck satellite over the patch of sky covered by the SPT-SZ survey. We first visually compare the maps and find that the residuals appear consistent with noise after accounting for differences in angular resolution and filtering. We then calculate (1) the cross-spectrum between two independent halves of SPT data, (2) the cross-spectrum between two independent halves of Planck data, and (3) the cross-spectrum between SPT and Planck data. We find the three cross-spectra are well-fit (PTE = 0.30) by the null hypothesis in which both experiments have measured the same sky map up to a single free calibration parameter---i.e., we find no evidence for systematic errors in either data set. As a by-product, we improve the precision of the SPT calibration by nearly an order of magnitude, from 2.6% to 0.3% in power. Finally, we compare all three cross-spectra to the full-sky Planck power spectrum and find marginal evidence for differences between the power spectra from the SPT-SZ footprint and the full sky. We model these differences as a power law in spherical harmonic multipole number. The best-fit value of this tilt is consistent among the three cross-spectra in the SPT-SZ footprint, implying that the source of this tilt is a sample variance fluctuation in the SPT-SZ region relative to the full sky. The consistency of cosmological parameters derived from these datasets is discussed in a companion paper. : 15 pages, 9 figures. Published in The Astrophysical Journal. Current arxiv version matches published version Text South pole DataCite Metadata Store (German National Library of Science and Technology) South Pole
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language unknown
topic Cosmology and Nongalactic Astrophysics astro-ph.CO
FOS Physical sciences
spellingShingle Cosmology and Nongalactic Astrophysics astro-ph.CO
FOS Physical sciences
Hou, Z.
Aylor, K.
Benson, B. A.
Bleem, L. E.
Carlstrom, J. E.
Chang, C. L.
Cho, H-M.
Chown, R.
Crawford, T. M.
Crites, A. T.
de Haan, T.
Dobbs, M. A.
Everett, W. B.
Follin, B.
George, E. M.
Halverson, N. W.
Harrington, N. L.
Holder, G. P.
Holzapfel, W. L.
Hrubes, J. D.
Keisler, R.
Knox, L.
Lee, A. T.
Leitch, E. M.
Luong-Van, D.
Marrone, D. P.
McMahon, J. J.
Meyer, S. S.
Millea, M.
Mocanu, L. M.
Mohr, J. J.
Natoli, T.
Omori, Y.
Padin, S.
Pryke, C.
Reichardt, C. L.
Ruhl, J. E.
Sayre, J. T.
Schaffer, K. K.
Shirokoff, E.
Staniszewski, Z.
Stark, A. A.
Story, K. T.
Vanderlinde, K.
Vieira, J. D.
Williamson, R.
A Comparison of Maps and Power Spectra Determined from South Pole Telescope and Planck Data
topic_facet Cosmology and Nongalactic Astrophysics astro-ph.CO
FOS Physical sciences
description We study the consistency of 150 GHz data from the South Pole Telescope (SPT) and 143 GHz data from the Planck satellite over the patch of sky covered by the SPT-SZ survey. We first visually compare the maps and find that the residuals appear consistent with noise after accounting for differences in angular resolution and filtering. We then calculate (1) the cross-spectrum between two independent halves of SPT data, (2) the cross-spectrum between two independent halves of Planck data, and (3) the cross-spectrum between SPT and Planck data. We find the three cross-spectra are well-fit (PTE = 0.30) by the null hypothesis in which both experiments have measured the same sky map up to a single free calibration parameter---i.e., we find no evidence for systematic errors in either data set. As a by-product, we improve the precision of the SPT calibration by nearly an order of magnitude, from 2.6% to 0.3% in power. Finally, we compare all three cross-spectra to the full-sky Planck power spectrum and find marginal evidence for differences between the power spectra from the SPT-SZ footprint and the full sky. We model these differences as a power law in spherical harmonic multipole number. The best-fit value of this tilt is consistent among the three cross-spectra in the SPT-SZ footprint, implying that the source of this tilt is a sample variance fluctuation in the SPT-SZ region relative to the full sky. The consistency of cosmological parameters derived from these datasets is discussed in a companion paper. : 15 pages, 9 figures. Published in The Astrophysical Journal. Current arxiv version matches published version
format Text
author Hou, Z.
Aylor, K.
Benson, B. A.
Bleem, L. E.
Carlstrom, J. E.
Chang, C. L.
Cho, H-M.
Chown, R.
Crawford, T. M.
Crites, A. T.
de Haan, T.
Dobbs, M. A.
Everett, W. B.
Follin, B.
George, E. M.
Halverson, N. W.
Harrington, N. L.
Holder, G. P.
Holzapfel, W. L.
Hrubes, J. D.
Keisler, R.
Knox, L.
Lee, A. T.
Leitch, E. M.
Luong-Van, D.
Marrone, D. P.
McMahon, J. J.
Meyer, S. S.
Millea, M.
Mocanu, L. M.
Mohr, J. J.
Natoli, T.
Omori, Y.
Padin, S.
Pryke, C.
Reichardt, C. L.
Ruhl, J. E.
Sayre, J. T.
Schaffer, K. K.
Shirokoff, E.
Staniszewski, Z.
Stark, A. A.
Story, K. T.
Vanderlinde, K.
Vieira, J. D.
Williamson, R.
author_facet Hou, Z.
Aylor, K.
Benson, B. A.
Bleem, L. E.
Carlstrom, J. E.
Chang, C. L.
Cho, H-M.
Chown, R.
Crawford, T. M.
Crites, A. T.
de Haan, T.
Dobbs, M. A.
Everett, W. B.
Follin, B.
George, E. M.
Halverson, N. W.
Harrington, N. L.
Holder, G. P.
Holzapfel, W. L.
Hrubes, J. D.
Keisler, R.
Knox, L.
Lee, A. T.
Leitch, E. M.
Luong-Van, D.
Marrone, D. P.
McMahon, J. J.
Meyer, S. S.
Millea, M.
Mocanu, L. M.
Mohr, J. J.
Natoli, T.
Omori, Y.
Padin, S.
Pryke, C.
Reichardt, C. L.
Ruhl, J. E.
Sayre, J. T.
Schaffer, K. K.
Shirokoff, E.
Staniszewski, Z.
Stark, A. A.
Story, K. T.
Vanderlinde, K.
Vieira, J. D.
Williamson, R.
author_sort Hou, Z.
title A Comparison of Maps and Power Spectra Determined from South Pole Telescope and Planck Data
title_short A Comparison of Maps and Power Spectra Determined from South Pole Telescope and Planck Data
title_full A Comparison of Maps and Power Spectra Determined from South Pole Telescope and Planck Data
title_fullStr A Comparison of Maps and Power Spectra Determined from South Pole Telescope and Planck Data
title_full_unstemmed A Comparison of Maps and Power Spectra Determined from South Pole Telescope and Planck Data
title_sort comparison of maps and power spectra determined from south pole telescope and planck data
publisher arXiv
publishDate 2017
url https://dx.doi.org/10.48550/arxiv.1704.00884
https://arxiv.org/abs/1704.00884
geographic South Pole
geographic_facet South Pole
genre South pole
genre_facet South pole
op_relation https://dx.doi.org/10.3847/1538-4357/aaa3ef
op_rights arXiv.org perpetual, non-exclusive license
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
op_doi https://doi.org/10.48550/arxiv.1704.00884
https://doi.org/10.3847/1538-4357/aaa3ef
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