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A Cosmic Microwave Background Lensing Mass Map and Its Correlation with the Cosmic Infrared Background

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.

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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.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Bock, J.0000-0002-5710-5212
Zemcov, M.0000-0001-8253-1451
Alternate Title:A CMB lensing mass map and its correlation with the cosmic infrared background
Additional Information:© 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.
Funding AgencyGrant Number
Kavli FoundationUNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
National Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Canada Research Chairs programUNSPECIFIED
Canadian Institute for Advanced Research (CIAR)UNSPECIFIED
NASA Hubble Fellowship grantHF-51275.01
Alfred P. Sloan Research FellowshipUNSPECIFIED
Subject Keywords: cosmic background radiation; galaxies: structure
Issue or Number:1
Record Number:CaltechAUTHORS:20130812-093103295
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Official Citation:A Cosmic Microwave Background Lensing Mass Map and Its Correlation with the Cosmic Infrared Background G. P. Holder, M. P. Viero, O. Zahn, K. A. Aird, B. A. Benson, S. Bhattacharya, L. E. Bleem, J. Bock, M. Brodwin, J. E. Carlstrom, C. L. Chang, H-M. Cho, A. Conley, T. M. Crawford, A. T. Crites, T. de Haan, M. A. Dobbs, J. Dudley, E. M. George, N. W. Halverson, W. L. Holzapfel, S. Hoover, Z. Hou, J. D. Hrubes, R. Keisler, L. Knox, A. T. Lee, E. M. Leitch, M. Lueker, D. Luong-Van, G. Marsden, D. P. Marrone, J. J. McMahon, J. Mehl, S. S. Meyer, M. Millea, J. J. Mohr, T. E. Montroy, S. Padin, T. Plagge, C. Pryke, C. L. Reichardt, J. E. Ruhl, J. T. Sayre, K. K. Schaffer, B. Schulz, L. Shaw, E. Shirokoff, H. G. Spieler, Z. Staniszewski, A. A. Stark, K. T. Story, A. van Engelen, K. Vanderlinde, J. D. Vieira, R. Williamson, and M. Zemcov doi:10.1088/2041-8205/771/1/L16
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39865
Deposited By: Ruth Sustaita
Deposited On:12 Aug 2013 17:15
Last Modified:09 Nov 2021 23:47

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