Herschel-ATLAS/GAMA: spatial clustering of low-redshift submm galaxies
Rodighiero, G.; Valtchanov, I.; Ivison, R. J.; de Zotti, G.; Scott, D.; van Kampen, E.; Dunlop, J. S.; Fritz, J.; Cooray, A.; Ibar, E.; Auld, R.; Baes, M.; Cava, A.; Dariush, A.; Dunne, L.; Eales, S.; Jarvis, M. J.; Maddox, S.; Michałowski, M. J.; Serjeant, S.; van der Werf, P.; Pohlen, M.; Hopkins, A. M.; Pascale, E.; Prescott, M.; Bonfield, D. G.; Baldry, I. K.; Buttiglione, S.; Jones, D. H.; Loveday, J.; Norberg, P.; Sharp, R.; Smith, D. J. B.; Temi, P.; Tuffs, R. J.; Cameron, E.; Rigby, E.; Peacock, J. A.; Driver, S.; Kelvin, L.; Liske, J.; Popescu, C. C.; Robotham, A.; Bamford, S.; Croom, S.; Hill, D.; Parkinson, H.
Germany, United Kingdom, New Zealand, Australia, Spain, Belgium, Canada, Netherlands, Switzerland, Italy, United States
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. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.