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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ftcaltechauth:oai:authors.library.caltech.edu:d1j3a-5aw41 2024-10-20T14:11:46+00:00 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 https://doi.org/10.1088/2041-8205/771/1/L16 unknown American Astronomical Society http://arxiv.org/abs/1303.5048 eprintid:39865 info:eu-repo/semantics/openAccess Other Astrophysical Journal Letters, 771(1), Art. No. L16, (2013-07-01) cosmic background radiation galaxies: structure info:eu-repo/semantics/article 2013 ftcaltechauth https://doi.org/10.1088/2041-8205/771/1/L16 2024-09-25T18:46:46Z 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. © 2013 American Astronomical Society. Received 2013 March 28; accepted 2013 June 5; published 2013 June 19. The SPT is supported by the National Science Foundation through grant ANT-0638937, with partial support provided by NSF grant PHY-1125897, the Kavli Foundation, and the Gordon and Betty Moore Foundation. The McGill group acknowledges funding from the National Sciences and Engineering Research Council of Canada, Canada Research Chairs program, and the Canadian Institute for Advanced Research. Work at Harvard is supported by grant AST-1009012. S. Bhattacharya acknowledges support from NSF grant AST-1009811, R.Keisler from NASA Hubble Fellowship grant HF-51275.01, B. Benson from a KICP Fellowship, M. Dobbs from an Alfred P. Sloan Research Fellowship, and O. Zahn from a BCCP fellowship. Published - 2041-8205_771_1_L16.pdf Submitted - 1303.5048v1.pdf Article in Journal/Newspaper South pole Caltech Authors (California Institute of Technology) Canada Hubble ENVELOPE(158.317,158.317,-80.867,-80.867) Kavli ENVELOPE(7.837,7.837,62.581,62.581) South Pole The Astrophysical Journal 771 1 L16 |
institution |
Open Polar |
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Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
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topic |
cosmic background radiation galaxies: structure |
spellingShingle |
cosmic background radiation galaxies: structure 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 |
topic_facet |
cosmic background radiation galaxies: structure |
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. © 2013 American Astronomical Society. Received 2013 March 28; accepted 2013 June 5; published 2013 June 19. The SPT is supported by the National Science Foundation through grant ANT-0638937, with partial support provided by NSF grant PHY-1125897, the Kavli Foundation, and the Gordon and Betty Moore Foundation. The McGill group acknowledges funding from the National Sciences and Engineering Research Council of Canada, Canada Research Chairs program, and the Canadian Institute for Advanced Research. Work at Harvard is supported by grant AST-1009012. S. Bhattacharya acknowledges support from NSF grant AST-1009811, R.Keisler from NASA Hubble Fellowship grant HF-51275.01, B. Benson from a KICP Fellowship, M. Dobbs from an Alfred P. Sloan Research Fellowship, and O. Zahn from a BCCP fellowship. Published - 2041-8205_771_1_L16.pdf Submitted - 1303.5048v1.pdf |
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. |
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://doi.org/10.1088/2041-8205/771/1/L16 |
long_lat |
ENVELOPE(158.317,158.317,-80.867,-80.867) ENVELOPE(7.837,7.837,62.581,62.581) |
geographic |
Canada Hubble Kavli South Pole |
geographic_facet |
Canada Hubble Kavli South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Astrophysical Journal Letters, 771(1), Art. No. L16, (2013-07-01) |
op_relation |
http://arxiv.org/abs/1303.5048 eprintid:39865 |
op_rights |
info:eu-repo/semantics/openAccess 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_ |
1813452430624423936 |