Improved constraints on cosmic microwave background secondary anisotropies from the complete 2008 South Pole Telescope data
We report measurements of the cosmic microwave background (CMB) power spectrum from the complete 2008 South Pole Telescope (SPT) data set. We analyze twice as much data as the first SPT power spectrum analysis, using an improved cosmological parameter estimator which fits multi-frequency models to t...
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ftdatacite:10.48550/arxiv.1012.4788 2023-05-15T18:22:20+02:00 Improved constraints on cosmic microwave background secondary anisotropies from the complete 2008 South Pole Telescope data Shirokoff, E. Reichardt, C. L. Shaw, L. Millea, M. Ade, P. A. R. Aird, K. A. Benson, B. A. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Cho, H. M. Crawford, T. M. Crites, A. T. de Haan, T. Dobbs, M. A. Dudley, J. George, E. M. Halverson, N. W. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Joy, M. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Lueker, M. Luong-Van, D. McMahon, J. J. Mehl, J. Meyer, S. S. Mohr, J. J. Montroy, T. E. Padin, S. Plagge, T. Pryke, C. Ruhl, J. E. Schaffer, K. K. Spieler, H. G. Staniszewski, Z. Stark, A. A. Story, K. Vanderlinde, K. Vieira, J. D. Williamson, R. Zahn, O. 2010 https://dx.doi.org/10.48550/arxiv.1012.4788 https://arxiv.org/abs/1012.4788 unknown arXiv https://dx.doi.org/10.1088/0004-637x/736/1/61 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 2010 ftdatacite https://doi.org/10.48550/arxiv.1012.4788 https://doi.org/10.1088/0004-637x/736/1/61 2022-04-01T14:22:41Z We report measurements of the cosmic microwave background (CMB) power spectrum from the complete 2008 South Pole Telescope (SPT) data set. We analyze twice as much data as the first SPT power spectrum analysis, using an improved cosmological parameter estimator which fits multi-frequency models to the SPT 150 and $220\,$GHz bandpowers. We find an excellent fit to the measured bandpowers with a model that includes lensed primary CMB anisotropy, secondary thermal (tSZ) and kinetic (kSZ) Sunyaev-Zel'dovich anisotropies, unclustered synchrotron point sources, and clustered dusty point sources. In addition to measuring the power spectrum of dusty galaxies at high signal-to-noise, the data primarily constrain a linear combination of the kSZ and tSZ anisotropy contributions at $150\,$GHz and $\ell=3000$: $D^{tSZ}_{3000} + 0.5\,D^{kSZ}_{3000} = 4.5\pm 1.0 \,μ{\rm K}^2$. The 95% confidence upper limits on secondary anisotropy power are $D^{tSZ}_{3000} < 5.3\,μ{\rm K}^2$ and $D^{kSZ}_{3000} < 6.5\,μ{\rm K}^2$. We also consider the potential correlation of dusty and tSZ sources, and find it incapable of relaxing the tSZ upper limit. These results increase the significance of the lower than expected tSZ amplitude previously determined from SPT power spectrum measurements. We find that models including non-thermal pressure support in groups and clusters predict tSZ power in better agreement with the SPT data. Combining the tSZ power measurement with primary CMB data halves the statistical uncertainty on $σ_8$. However, the preferred value of $σ_8$ varies significantly between tSZ models. Improved constraints on cosmological parameters from tSZ power spectrum measurements require continued progress in the modeling of the tSZ power. : Minor additions in response to referee; results unchanged. 27 pages, 16 figures. Submitted to ApJ Text South pole DataCite Metadata Store (German National Library of Science and Technology) South Pole |
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DataCite Metadata Store (German National Library of Science and Technology) |
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language |
unknown |
topic |
Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences |
spellingShingle |
Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences Shirokoff, E. Reichardt, C. L. Shaw, L. Millea, M. Ade, P. A. R. Aird, K. A. Benson, B. A. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Cho, H. M. Crawford, T. M. Crites, A. T. de Haan, T. Dobbs, M. A. Dudley, J. George, E. M. Halverson, N. W. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Joy, M. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Lueker, M. Luong-Van, D. McMahon, J. J. Mehl, J. Meyer, S. S. Mohr, J. J. Montroy, T. E. Padin, S. Plagge, T. Pryke, C. Ruhl, J. E. Schaffer, K. K. Spieler, H. G. Staniszewski, Z. Stark, A. A. Story, K. Vanderlinde, K. Vieira, J. D. Williamson, R. Zahn, O. Improved constraints on cosmic microwave background secondary anisotropies from the complete 2008 South Pole Telescope data |
topic_facet |
Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences |
description |
We report measurements of the cosmic microwave background (CMB) power spectrum from the complete 2008 South Pole Telescope (SPT) data set. We analyze twice as much data as the first SPT power spectrum analysis, using an improved cosmological parameter estimator which fits multi-frequency models to the SPT 150 and $220\,$GHz bandpowers. We find an excellent fit to the measured bandpowers with a model that includes lensed primary CMB anisotropy, secondary thermal (tSZ) and kinetic (kSZ) Sunyaev-Zel'dovich anisotropies, unclustered synchrotron point sources, and clustered dusty point sources. In addition to measuring the power spectrum of dusty galaxies at high signal-to-noise, the data primarily constrain a linear combination of the kSZ and tSZ anisotropy contributions at $150\,$GHz and $\ell=3000$: $D^{tSZ}_{3000} + 0.5\,D^{kSZ}_{3000} = 4.5\pm 1.0 \,μ{\rm K}^2$. The 95% confidence upper limits on secondary anisotropy power are $D^{tSZ}_{3000} < 5.3\,μ{\rm K}^2$ and $D^{kSZ}_{3000} < 6.5\,μ{\rm K}^2$. We also consider the potential correlation of dusty and tSZ sources, and find it incapable of relaxing the tSZ upper limit. These results increase the significance of the lower than expected tSZ amplitude previously determined from SPT power spectrum measurements. We find that models including non-thermal pressure support in groups and clusters predict tSZ power in better agreement with the SPT data. Combining the tSZ power measurement with primary CMB data halves the statistical uncertainty on $σ_8$. However, the preferred value of $σ_8$ varies significantly between tSZ models. Improved constraints on cosmological parameters from tSZ power spectrum measurements require continued progress in the modeling of the tSZ power. : Minor additions in response to referee; results unchanged. 27 pages, 16 figures. Submitted to ApJ |
format |
Text |
author |
Shirokoff, E. Reichardt, C. L. Shaw, L. Millea, M. Ade, P. A. R. Aird, K. A. Benson, B. A. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Cho, H. M. Crawford, T. M. Crites, A. T. de Haan, T. Dobbs, M. A. Dudley, J. George, E. M. Halverson, N. W. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Joy, M. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Lueker, M. Luong-Van, D. McMahon, J. J. Mehl, J. Meyer, S. S. Mohr, J. J. Montroy, T. E. Padin, S. Plagge, T. Pryke, C. Ruhl, J. E. Schaffer, K. K. Spieler, H. G. Staniszewski, Z. Stark, A. A. Story, K. Vanderlinde, K. Vieira, J. D. Williamson, R. Zahn, O. |
author_facet |
Shirokoff, E. Reichardt, C. L. Shaw, L. Millea, M. Ade, P. A. R. Aird, K. A. Benson, B. A. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Cho, H. M. Crawford, T. M. Crites, A. T. de Haan, T. Dobbs, M. A. Dudley, J. George, E. M. Halverson, N. W. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Joy, M. Keisler, R. Knox, L. Lee, A. T. Leitch, E. M. Lueker, M. Luong-Van, D. McMahon, J. J. Mehl, J. Meyer, S. S. Mohr, J. J. Montroy, T. E. Padin, S. Plagge, T. Pryke, C. Ruhl, J. E. Schaffer, K. K. Spieler, H. G. Staniszewski, Z. Stark, A. A. Story, K. Vanderlinde, K. Vieira, J. D. Williamson, R. Zahn, O. |
author_sort |
Shirokoff, E. |
title |
Improved constraints on cosmic microwave background secondary anisotropies from the complete 2008 South Pole Telescope data |
title_short |
Improved constraints on cosmic microwave background secondary anisotropies from the complete 2008 South Pole Telescope data |
title_full |
Improved constraints on cosmic microwave background secondary anisotropies from the complete 2008 South Pole Telescope data |
title_fullStr |
Improved constraints on cosmic microwave background secondary anisotropies from the complete 2008 South Pole Telescope data |
title_full_unstemmed |
Improved constraints on cosmic microwave background secondary anisotropies from the complete 2008 South Pole Telescope data |
title_sort |
improved constraints on cosmic microwave background secondary anisotropies from the complete 2008 south pole telescope data |
publisher |
arXiv |
publishDate |
2010 |
url |
https://dx.doi.org/10.48550/arxiv.1012.4788 https://arxiv.org/abs/1012.4788 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://dx.doi.org/10.1088/0004-637x/736/1/61 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1012.4788 https://doi.org/10.1088/0004-637x/736/1/61 |
_version_ |
1766201724101459968 |