Herschel-ATLAS: Planck sources in the phase 1 fields
Rodighiero, G.; Valtchanov, I.; Ivison, R. J.; Bonavera, L.; Clements, D. L.; Danese, L.; Dole, H.; González-Nuevo, J.; Herranz, D.; Lagache, G.; Scott, D.; Cooray, A.; Ibar, E.; Massardi, M.; Negrello, M.; Lapi, A.; De Zotti, G.; Auld, R.; Baes, M.; Dariush, A.; Dunne, L.; Eales, S.; Hopwood, R.; Hoyos, C.; Maddox, S.; Michałowski, M. J.; Valiante, E.; Bendo, G. J.; Carrera, F. J.; Fu, H.; Buttiglione, S.; Jarvis, M.; Rigby, E.; Lopez-Caniego, M.; Van der Werf, P.
Spain, United Kingdom, Italy, United States, Belgium, France, South Africa, Netherlands, Canada
Abstract
We present the results of a cross-correlation of the Planck Early Release Compact Source catalogue (ERCSC) with the catalogue of Herschel-ATLAS sources detected in the phase 1 fields, covering 134.55°2. There are 28 ERCSC sources detected by Planck at 857 GHz in this area. As many as 16 of them are probably high Galactic latitude cirrus; 10 additional sources can be clearly identified as bright, low-z galaxies; one further source is resolved by Herschel as two relatively bright sources; and the last is resolved into an unusual condensation of low-flux, probably high-redshift point sources, around a strongly lensed Herschel-ATLAS source at z = 3.26. Our results demonstrate that the higher sensitivity and higher angular resolution H-ATLAS maps provide essential information for the interpretation of candidate sources extracted from Planck sub-mm maps.
Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA