Herschel-ATLAS/GAMA: spatial clustering of low redshift submm galaxies

van Kampen, E.; Smith, D. J. B.; Maddox, S.; Hopkins, A. M.; Valtchanov, I.; Peacock, J. A.; Michałowski, M. J.; Norberg, P.; Eales, S.; Dunne, L.; Liske, J.; Baes, M.; Scott, D.; Rigby, E.; Robotham, A.; van der Werf, P.; Ibar, E.; Jarvis, M. J.; Loveday, J.; Auld, R.; Baldry, I. K.; Bamford, S.; Cameron, E.; Croom, S.; Buttiglione, S.; Cava, A.; Cooray, A.; Driver, S.; Dunlop, J. S.; Dariush, A.; Fritz, J.; Ivison, R. J.; Pascale, E.; Pohlen, M.; Rodighiero, G.; Temi, P.; Bonfield, D. G.; Hill, D.; Jones, D. H.; Kelvin, L.; Parkinson, H.; Prescott, M.; Sharp, R.; de Zotti, G.; Serjeant, S.; Popescu, C. C. and Tuffs, R. J. (2012). Herschel-ATLAS/GAMA: spatial clustering of low redshift submm galaxies. Monthly Notices of the Royal Astronomical Society, 426(4) pp. 3455–3463.

DOI: https://doi.org/10.1111/j.1365-2966.2012.21949.x

Abstract

We have measured the clustering properties of low-redshift (z < 0.3) submm galaxies detected at 250 μm in the Herschel-ATLAS science demonstration phase field. We selected a sample for which we have high-quality spectroscopic redshifts, obtained from reliably matching the 250-μm sources to a complete (for r < 19.4) sample of galaxies from the GAMA data base. Both the angular and spatial clustering strength are measured for all z < 0.3 sources as well as for five redshift slices with thickness Δz = 0.05 in the range 0.05 < z < 0.3. Our measured spatial clustering length r₀ is comparable to that of optically selected, moderately star-forming (blue) galaxies: we find values around 5 Mpc. One of the redshift bins contains an interesting structure, at z = 0.164.

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