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Oxford University Press (OUP), Monthly Notices of the Royal Astronomical Society, 3(442), p. 2680-2690

DOI: 10.1093/mnras/stu1041

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Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing

Journal article published in 2014 by J. González-Nuevo, A. Lapi, M. Negrello, L. Danese, G. De Zotti, S. Amber, Maarten Baes ORCID, J. Bland-Hawthorn, N. Bourne, S. Brough, Rs S. Bussmann, Zy-Y. Cai, A. Cooray, Sp P. Driver ORCID, L. Dunne and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

We report a highly significant (> 10 sigma) spatial correlation between galaxies with S-350 mu m a parts per thousand yen 30 mJy detected in the equatorial fields of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) with estimated redshifts a parts per thousand(3) 1.5, and Sloan Digital Sky Survey (SDSS) or Galaxy And Mass Assembly (GAMA) galaxies at 0.2 a parts per thousand currency sign z a parts per thousand currency sign 0.6. The significance of the cross-correlation is much higher than those reported so far for samples with non-overlapping redshift distributions selected in other wavebands. Extensive, realistic simulations of clustered sub-mm galaxies amplified by foreground structures confirm that the cross-correlation can be explained by weak gravitational lensing (mu