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.
@article{arxiv.1204.3917,
title = {Herschel-ATLAS: Planck sources in the Phase 1 fields},
author = {D. Herranz and J. González-Nuevo and D. L. Clements and M. Clemens and G. De Zotti and M. López-Caniego and A. Lapi and G. Rodighiero and L. Danese and H. Fu and A. Cooray and M. Baes and G. J. Bendo and L. Bonavera and F. J. Carrera and H. Dole and S. Eales and R. J. Ivison and M. Jarvis and G. Lagache and M. Massardi and M. J. Michalowski and M. Negrello and E. Rigby and D. Scott and E. Valiante and I. Valtchanov and P. Van der Werf and R. Auld and S. Buttiglione and A. Dariush and L. Dunne and R. Hopwood and C. Hoyos and E. Ibar and S. Maddox},
journal= {arXiv preprint arXiv:1204.3917},
year = {2016}
}