Herschel-ATLAS: Planck sources in the Phase 1 fields

Authors :: Herranz, D.
González-Nuevo, J.
Clements, D. L.
Clemens, M.
De Zotti, G.
López-Caniego, M.
Lapi, A.
Rodighiero, G.
Danese, L.
Fu, H.
Cooray, A.
Baes, M.
Bendo, G. J.
Bonavera, L.
Carrera, F. J.
Dole, H.
Eales, S.
Ivison, R. J.
Jarvis, M.
Lagache, G.
Massardi, M.
Michalowski, M. J.
Negrello, M.
Rigby, E.
Scott, D.
Valiante, E.
Valtchanov, I.
Van der Werf, P.
Auld, R.
Buttiglione, S.
Dariush, A.
Dunne, L.
Hopwood, R.
Hoyos, C.
Ibar, E.
Maddox, S.
Publication Year :: 2012
Abstract: We present the results of a cross-correlation of the Planck Early Release Compact Source Catalog (ERCSC) with the catalog of Herschel-ATLAS sources detected in the Phase 1 fields, covering 134.55 deg2. 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.<br />Comment: 14 pages, 12 figures, 2 tables. Submitted to A&A