Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing
dc.contributor.author | Gonzalez-Nuevo, J. | |
dc.contributor.author | Lapi, A. | |
dc.contributor.author | Negrello, M. | |
dc.contributor.author | Danese, L. | |
dc.contributor.author | De Zotti, G. | |
dc.contributor.author | Amber, S. | |
dc.contributor.author | Bae, Sung Eun | |
dc.contributor.author | Bland-Hawthorn, J. | |
dc.contributor.author | Bourne, N. | |
dc.contributor.author | Brough, S. | |
dc.contributor.author | Bussmann, R.S. | |
dc.contributor.author | Cai, Z-Y. | |
dc.contributor.author | Cooray, A. | |
dc.contributor.author | Driver, S.P. | |
dc.contributor.author | Dunne, L. | |
dc.contributor.author | Dye, S. | |
dc.contributor.author | Eales, S. | |
dc.contributor.author | Ibar, E. | |
dc.contributor.author | Ivison, R. | |
dc.contributor.author | Liske, J. | |
dc.contributor.author | Loveday, J. | |
dc.contributor.author | Maddox, S. | |
dc.contributor.author | Michalowski, M.J. | |
dc.contributor.author | Robotham, A.S.G. | |
dc.contributor.author | Scott, D. | |
dc.contributor.author | Smith, M.W.L. | |
dc.contributor.author | Valiante, E. | |
dc.contributor.author | Xia, J-Q. | |
dc.date.accessioned | 2015-05-04T21:46:19Z | |
dc.date.available | 2015-05-04T21:46:19Z | |
dc.date.issued | 2014 | en |
dc.description.abstract | We report a highly significant (> 10 ) spatial correlation between galaxies with S350μm > 30mJy detected in the equatorial fields of the Herschel Astrophysical Ter- ahertz Large Area Survey (H-ATLAS) with estimated redshifts & 1.5, and SDSS or GAMA galaxies at 0.2 6 z 6 0.6. The significance of the cross-correlation is much higher than those reported so far for samples with non-overlapping redshift distribu- tions 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 ac- counted 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 1013.2–1014.5M⊙. The signal detected on larger scales appears to reflect the clustering of such halos. | en |
dc.identifier.citation | 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., Michalowski, M.J., Robotham, A.S.G., Scott, D., Smith, M.W.L., Valiante, E., Xia, J-Q. (2014) Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing. Monthly Notices of the Royal Astronomical Society, 442, pp. 2680-2690 | en |
dc.identifier.doi | https://doi.org/10.1093/mnras/stu1041 | |
dc.identifier.uri | http://hdl.handle.net/10092/10383 | |
dc.language.iso | en | |
dc.publisher | University of Canterbury. Physics and Astronomy | en |
dc.rights.uri | https://hdl.handle.net/10092/17651 | en |
dc.subject | cosmology | en |
dc.subject | large-scale structure of universe | en |
dc.subject | galaxies | en |
dc.subject.anzsrc | Fields of Research::51 - Physical sciences::5101 - Astronomical sciences::510103 - Cosmology and extragalactic astronomy | en |
dc.title | Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing | en |
dc.type | Journal Article |
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