Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing
We report a highly significant (>10σ) spatial correlation between galaxies with S350 μm ≥ 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 (G...
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| Format: | Article |
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Oxford University Press
2014
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| Online Access: | https://eprints.nottingham.ac.uk/42378/ |
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| author | Gonzalez-Nuevo, J. Lapi, A. Negrello, M. Danese, L. De Zotti, G. Amber, S. Baes, M. Bland-Hawthorn, J. Bourne, N. Brough, S. Bussmann, R.S. Cai, Z-Y. Cooray, A. Driver, S.P. Dunne, L. Dye, S. Eales, S. Ibar, E. Ivison, R. Liske, J. Loveday, J. Maddox, S. Micha owski, M.J. Robotham, A.S.G. Scott, D. Smith, M.W.L. Valiante, E. Xia, J-Q. |
| author_facet | Gonzalez-Nuevo, J. Lapi, A. Negrello, M. Danese, L. De Zotti, G. Amber, S. Baes, M. Bland-Hawthorn, J. Bourne, N. Brough, S. Bussmann, R.S. Cai, Z-Y. Cooray, A. Driver, S.P. Dunne, L. Dye, S. Eales, S. Ibar, E. Ivison, R. Liske, J. Loveday, J. Maddox, S. Micha owski, M.J. Robotham, A.S.G. Scott, D. Smith, M.W.L. Valiante, E. Xia, J-Q. |
| author_sort | Gonzalez-Nuevo, J. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We report a highly significant (>10σ) spatial correlation between galaxies with S350 μm ≥ 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 < 2). The simulations also show that the measured amplitude and range of angular scales of the signal are larger than can be accounted for by galaxy–galaxy weak lensing. However, for scales ≲ 2 arcmin, the signal can be reproduced if SDSS/GAMA galaxies act as signposts of galaxy groups/clusters with halo masses in the range 1013.2–1014.5 M⊙. The signal detected on larger scales appears to reflect the clustering of such haloes. |
| first_indexed | 2025-11-14T19:48:34Z |
| format | Article |
| id | nottingham-42378 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:48:34Z |
| publishDate | 2014 |
| publisher | Oxford University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-423782020-05-04T16:49:01Z https://eprints.nottingham.ac.uk/42378/ Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing Gonzalez-Nuevo, J. Lapi, A. Negrello, M. Danese, L. De Zotti, G. Amber, S. Baes, M. Bland-Hawthorn, J. Bourne, N. Brough, S. Bussmann, R.S. Cai, Z-Y. Cooray, A. Driver, S.P. Dunne, L. Dye, S. Eales, S. Ibar, E. Ivison, R. Liske, J. Loveday, J. Maddox, S. Micha owski, M.J. Robotham, A.S.G. Scott, D. Smith, M.W.L. Valiante, E. Xia, J-Q. We report a highly significant (>10σ) spatial correlation between galaxies with S350 μm ≥ 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 < 2). The simulations also show that the measured amplitude and range of angular scales of the signal are larger than can be accounted for by galaxy–galaxy weak lensing. However, for scales ≲ 2 arcmin, the signal can be reproduced if SDSS/GAMA galaxies act as signposts of galaxy groups/clusters with halo masses in the range 1013.2–1014.5 M⊙. The signal detected on larger scales appears to reflect the clustering of such haloes. Oxford University Press 2014-06-26 Article PeerReviewed Gonzalez-Nuevo, J., Lapi, A., Negrello, M., Danese, L., De Zotti, G., Amber, S., Baes, M., Bland-Hawthorn, J., Bourne, N., Brough, S., Bussmann, R.S., Cai, Z-Y., Cooray, A., Driver, S.P., Dunne, L., Dye, S., Eales, S., Ibar, E., Ivison, R., Liske, J., Loveday, J., Maddox, S., Micha owski, M.J., Robotham, A.S.G., Scott, D., Smith, M.W.L., Valiante, E. and Xia, J-Q. (2014) Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing. Monthly Notices of the Royal Astronomical Society, 442 (3). pp. 2680-2690. ISSN 1365-2966 methods: statistical cosmology: observations large-scale structure of Universe infrared: galaxies https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stu1041 doi:10.1093/mnras/stu1041 doi:10.1093/mnras/stu1041 |
| spellingShingle | methods: statistical cosmology: observations large-scale structure of Universe infrared: galaxies Gonzalez-Nuevo, J. Lapi, A. Negrello, M. Danese, L. De Zotti, G. Amber, S. Baes, M. Bland-Hawthorn, J. Bourne, N. Brough, S. Bussmann, R.S. Cai, Z-Y. Cooray, A. Driver, S.P. Dunne, L. Dye, S. Eales, S. Ibar, E. Ivison, R. Liske, J. Loveday, J. Maddox, S. Micha owski, M.J. Robotham, A.S.G. Scott, D. Smith, M.W.L. Valiante, E. Xia, J-Q. Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing |
| title | Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing |
| title_full | Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing |
| title_fullStr | Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing |
| title_full_unstemmed | Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing |
| title_short | Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing |
| title_sort | herschel-atlas/gama: sdss cross-correlation induced by weak lensing |
| topic | methods: statistical cosmology: observations large-scale structure of Universe infrared: galaxies |
| url | https://eprints.nottingham.ac.uk/42378/ https://eprints.nottingham.ac.uk/42378/ https://eprints.nottingham.ac.uk/42378/ |