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

J. González-Nuevo, A. Lapi, M. Negrello, L. Danese, G. De Zotti, S. Amber, M. Baes, J. Bland-Hawthorn, N. Bourne, S. Brough, R.S. Bussmann, Z. Cai, A.R. Cooray, Simon Driver, L. Dunne, S. Dye, S.A. Eales, E. Ibar, R.J. Ivison, J. LiskeJ.N. Loveday, S.J. Maddox, M.J. Michałowski, Aaron Robotham, D. Scott, M.W.L. Smith, E. Valiante, J. Xia

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We report a highly significant (>10σ) spatial correlation between galaxies with S350μm ≥ 30 mJy detected in the equatorial fields of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) with estimated redshifts ≳1.5, and Sloan Digital Sky Survey (SDSS) or Galaxy And Mass Assembly (GAMA) galaxies at 0.2 ≤ z ≤ 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 (μ
Original languageEnglish
Pages (from-to)2680-2690
JournalMonthly Notices of the Royal Astronomical Society
Issue number3
Publication statusPublished - Aug 2014


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