Herschel ATLAS: The angular correlation function of submillimetre galaxies at high and low redshift
Abstract
We present measurements of the angular correlation function of galaxies selected from the first field of the H-ATLAS survey. Careful removal of the background from galactic cirrus is essential, and currently dominates the uncertainty in our measurements. For our 250 micron-selected sample we detect no significant clustering, consistent with the expectation that the 250 micron-selected sources are mostly normal galaxies at z<~ 1. For our 350 micron and 500 micron-selected samples we detect relatively strong clustering with correlation amplitudes A of 0.2 and 1.2 at 1', but with relatively large uncertainties. For samples which preferentially select high redshift galaxies at z~2-3 we detect significant strong clustering, leading to an estimate of r_0 ~ 7-11 h^{-1} Mpc. The slope of our clustering measurements is very steep, delta~2. The measurements are consistent with the idea that sub-mm sources consist of a low redshift population of normal galaxies and a high redshift population of highly clustered star-bursting galaxies.
Keywords
Cite
@article{arxiv.1005.2406,
title = {Herschel ATLAS: The angular correlation function of submillimetre galaxies at high and low redshift},
author = {S. J. Maddox and L. Dunne and E. Rigby and S. Eales and A. Cooray and D. Scott and J. A. Peacock and M. Negrello and D. J. B. Smith and D. Benford and A. Amblard and R. Auld and M. Baes and D. Bonfield and D. Burgarella and S. Buttiglione and A. Cava and D. Clements and A. Dariush and G. de Zotti and S. Dye and D. Frayer and J. Fritz and J. Gonzalez-Nuevo and D. Herranz and E. Ibar and R. Ivison and M. J. Jarvis and G. Lagache and L. Leeuw and M. Lopez-Caniego and E. Pascale and M. Pohlen and G. Rodighiero and S. Samui and S. Serjeant and P. Temi and M. Thompson and A. Verma},
journal= {arXiv preprint arXiv:1005.2406},
year = {2015}
}
Comments
Accepted for publication in the A&A Herschel Special issue. 5 pages, 3 figures.