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Herschel-ATLAS: The angular correlation function of submillimetre galaxies at high and low redshift

Maddox, S. J. and Frayer, D. (2010) Herschel-ATLAS: The angular correlation function of submillimetre galaxies at high and low redshift. Astronomy and Astrophysics, 518 . Art. No. L11. ISSN 0004-6361.

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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 μm-selected sample we detect no significant clustering, consistent with the expectation that the 250 μm-selected sources are mostly normal galaxies at z ≲ 1. For our 350 μm and 500 μm-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, δ ~ 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.

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Additional Information:© 2010 ESO. Received 31 March 2010, Accepted 11 May 2010, Published online 16 July 2010. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.
Subject Keywords:submillimeter: galaxies, galaxies: statistics
Record Number:CaltechAUTHORS:20101202-110122776
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Official Citation:Herschel-ATLAS: The angular correlation function of submillimetre galaxies at high and low redshift S. J. Maddox, L. Dunne, E. Rigby, S. Eales, A. Cooray, D. Scott, J. A. Peacock, M. Negrello, D. J. B. Smith, D. Benford, A. Amblard, R. Auld, M. Baes, D. Bonfield, D. Burgarella, S. Buttiglione, A. Cava, D. Clements, A. Dariush, G. de Zotti, S. Dye, D. Frayer, J. Fritz, J. Gonzalez-Nuevo, D. Herranz, E. Ibar, R. Ivison, M. J. Jarvis, G. Lagache, L. Leeuw, M. Lopez-Caniego, E. Pascale, M. Pohlen, G. Rodighiero, S. Samui, S. Serjeant, P. Temi, M. Thompson and A. Verma A&A 518 L11 (2010) DOI: 10.1051/0004-6361/201014663
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:21125
Deposited By: Benjamin Perez
Deposited On:02 Dec 2010 22:16
Last Modified:03 Oct 2019 02:20

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