A Cosmic Microwave Background Lensing Mass Map and Its Correlation with the Cosmic Infrared Background
We use a temperature map of the cosmic microwave background (CMB) obtained using the South Pole Telescope at 150 GHz to construct a map of the gravitational convergence to z ~ 1100, revealing the fluctuations in the projected mass density. This map shows individual features that are significant at t...
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American Astronomical Society
2013
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ftcaltechauth:oai:authors.library.caltech.edu:39865 2023-05-15T18:22:32+02:00 A Cosmic Microwave Background Lensing Mass Map and Its Correlation with the Cosmic Infrared Background Holder, G. P. Viero, M. P. Bock, J. Lueker, M. Padin, S. Schulz, B. Vieira, J. D. Zemcov, M. 2013-07-01 application/pdf https://authors.library.caltech.edu/39865/ https://authors.library.caltech.edu/39865/1/2041-8205_771_1_L16.pdf https://authors.library.caltech.edu/39865/7/1303.5048v1.pdf https://resolver.caltech.edu/CaltechAUTHORS:20130812-093103295 en eng American Astronomical Society https://authors.library.caltech.edu/39865/1/2041-8205_771_1_L16.pdf https://authors.library.caltech.edu/39865/7/1303.5048v1.pdf Holder, G. P. and Viero, M. P. and Bock, J. and Lueker, M. and Padin, S. and Schulz, B. and Vieira, J. D. and Zemcov, M. (2013) A Cosmic Microwave Background Lensing Mass Map and Its Correlation with the Cosmic Infrared Background. Astrophysical Journal Letters, 771 (1). Art. No. L16. ISSN 2041-8205. doi:10.1088/2041-8205/771/1/L16. https://resolver.caltech.edu/CaltechAUTHORS:20130812-093103295 <https://resolver.caltech.edu/CaltechAUTHORS:20130812-093103295> other Article PeerReviewed 2013 ftcaltechauth https://doi.org/10.1088/2041-8205/771/1/L16 2021-11-11T18:54:37Z We use a temperature map of the cosmic microwave background (CMB) obtained using the South Pole Telescope at 150 GHz to construct a map of the gravitational convergence to z ~ 1100, revealing the fluctuations in the projected mass density. This map shows individual features that are significant at the ~4σ level, providing the first image of CMB lensing convergence. We cross-correlate this map with Herschel/SPIRE maps covering 90 deg2 at wavelengths of 500, 350, and 250 μm. We show that these submillimeter (submm) wavelength maps are strongly correlated with the lensing convergence map, with detection significances in each of the three submm bands ranging from 6.7σ to 8.8σ. We fit the measurement of the cross power spectrum assuming a simple constant bias model and infer bias factors of b = 1.3-1.8, with a statistical uncertainty of 15%, depending on the assumed model for the redshift distribution of the dusty galaxies that are contributing to the Herschel/SPIRE maps. Article in Journal/Newspaper South pole Caltech Authors (California Institute of Technology) South Pole The Astrophysical Journal 771 1 L16 |
institution |
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Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
language |
English |
description |
We use a temperature map of the cosmic microwave background (CMB) obtained using the South Pole Telescope at 150 GHz to construct a map of the gravitational convergence to z ~ 1100, revealing the fluctuations in the projected mass density. This map shows individual features that are significant at the ~4σ level, providing the first image of CMB lensing convergence. We cross-correlate this map with Herschel/SPIRE maps covering 90 deg2 at wavelengths of 500, 350, and 250 μm. We show that these submillimeter (submm) wavelength maps are strongly correlated with the lensing convergence map, with detection significances in each of the three submm bands ranging from 6.7σ to 8.8σ. We fit the measurement of the cross power spectrum assuming a simple constant bias model and infer bias factors of b = 1.3-1.8, with a statistical uncertainty of 15%, depending on the assumed model for the redshift distribution of the dusty galaxies that are contributing to the Herschel/SPIRE maps. |
format |
Article in Journal/Newspaper |
author |
Holder, G. P. Viero, M. P. Bock, J. Lueker, M. Padin, S. Schulz, B. Vieira, J. D. Zemcov, M. |
spellingShingle |
Holder, G. P. Viero, M. P. Bock, J. Lueker, M. Padin, S. Schulz, B. Vieira, J. D. Zemcov, M. A Cosmic Microwave Background Lensing Mass Map and Its Correlation with the Cosmic Infrared Background |
author_facet |
Holder, G. P. Viero, M. P. Bock, J. Lueker, M. Padin, S. Schulz, B. Vieira, J. D. Zemcov, M. |
author_sort |
Holder, G. P. |
title |
A Cosmic Microwave Background Lensing Mass Map and Its Correlation with the Cosmic Infrared Background |
title_short |
A Cosmic Microwave Background Lensing Mass Map and Its Correlation with the Cosmic Infrared Background |
title_full |
A Cosmic Microwave Background Lensing Mass Map and Its Correlation with the Cosmic Infrared Background |
title_fullStr |
A Cosmic Microwave Background Lensing Mass Map and Its Correlation with the Cosmic Infrared Background |
title_full_unstemmed |
A Cosmic Microwave Background Lensing Mass Map and Its Correlation with the Cosmic Infrared Background |
title_sort |
cosmic microwave background lensing mass map and its correlation with the cosmic infrared background |
publisher |
American Astronomical Society |
publishDate |
2013 |
url |
https://authors.library.caltech.edu/39865/ https://authors.library.caltech.edu/39865/1/2041-8205_771_1_L16.pdf https://authors.library.caltech.edu/39865/7/1303.5048v1.pdf https://resolver.caltech.edu/CaltechAUTHORS:20130812-093103295 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://authors.library.caltech.edu/39865/1/2041-8205_771_1_L16.pdf https://authors.library.caltech.edu/39865/7/1303.5048v1.pdf Holder, G. P. and Viero, M. P. and Bock, J. and Lueker, M. and Padin, S. and Schulz, B. and Vieira, J. D. and Zemcov, M. (2013) A Cosmic Microwave Background Lensing Mass Map and Its Correlation with the Cosmic Infrared Background. Astrophysical Journal Letters, 771 (1). Art. No. L16. ISSN 2041-8205. doi:10.1088/2041-8205/771/1/L16. https://resolver.caltech.edu/CaltechAUTHORS:20130812-093103295 <https://resolver.caltech.edu/CaltechAUTHORS:20130812-093103295> |
op_rights |
other |
op_doi |
https://doi.org/10.1088/2041-8205/771/1/L16 |
container_title |
The Astrophysical Journal |
container_volume |
771 |
container_issue |
1 |
container_start_page |
L16 |
_version_ |
1766201941075951616 |