Herschel-ATLAS: The angular correlation function of submillimetre galaxies at high and low redshift
| Titre | Herschel-ATLAS: The angular correlation function of submillimetre galaxies at high and low redshift |
| Type de publication | Journal Article |
| Year of Publication | 2010 |
| Auteurs | Maddox, SJ, Dunne, L, Rigby, E, Eales, S, Cooray, A, Scott, D, Peacock, JA, Negrello, M, Smith, DJB, Benford, D, Amblard, A, Auld, R, Baes, M, Bonfield, D, Burgarella, D, Buttiglione, S, Cava, A, Clements, D, Dariush, A, de Zotti, G, Dye, S, Frayer, D, Fritz, J, Gonzalez-Nuevo, J, Herranz, D, Ibar, E, Ivison, R, Jarvis, MJ, Lagache, G, Leeuw, L, Lopez-Caniego, M, Pascale, E, Pohlen, M, Rodighiero, G, Samui, S, Serjeant, S, Temi, P, Thompson, M, Verma, A |
| Journal | Astronomy & Astrophysics |
| Volume | 518 |
| Date Published | Jul-Aug |
| ISBN Number | 0004-6361 |
| Numéro d'accès | WOS:000281527200012 |
| Résumé | 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 mu m-selected sample we detect no significant clustering, consistent with the expectation that the 250 mu m-selected sources are mostly normal galaxies at z <= 1. For our 350 mu m and 500 mu m-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 similar to 2-3 we detect significant strong clustering, leading to an estimate of r(0) similar to 7-11 h(-1) Mpc. The slope of our clustering measurements is very steep, delta similar to 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. |
