Planck 2015 results XXVII. The second Planck catalogue of Sunyaev-Zeldovich sources

Acknowledgements. The Planck Collaboration acknowledges the support of:\n\t\t\t\t ESA; CNES and CNRS/INSU-IN2P3-INP (France); ASI, CNR, and INAF\n\t\t\t\t (Italy); NASA and DoE (USA); STFC and UKSA (UK); CSIC, MINECO,\n\t\t\t\t JA, and RES (Spain); Tekes, AoF, and CSC (Finland); DLR and MPG\n\t\t\t\t (Germany); CSA (Canada); DTU Space (Denmark); SER/SSO (Switzerland);\n\t\t\t\t RCN (Norway); SFI (Ireland); FCT/MCTES (Portugal); ERC and PRACE (EU).\n\t\t\t\t A description of the Planck Collaboration and a list of its members, indicating\n\t\t\t\t which technical or scientific activities they have been involved in, can be found at\n\t\t\t\t http://www.cosmos.esa.int/web/planck/planck-collaboration. We\n\t\t\t\t thank Ian McCarthy for providing images and profiles of simulated clusters from\n\t\t\t\t cosmo-OWLS. This research has made use of the NASA/IPAC Extragalactic\n\t\t\t\t Database (NED), which is operated by the Jet Propulsion Laboratory, California\n\t\t\t\t Institute of Technology, under contract with the National Aeronautics and Space\n\t\t\t\t Administration, and the SIMBAD database, operated at CDS, Strasbourg, France\n\t\t\t\t This research made use of data retrieved from SDSS-III. Funding for SDSSIII has been provided by the Alfred P. Sloan Foundation, the Participating\n\t\t\t\t Institutions, the National Science Foundation, and the US Department of\n\t\t\t\t Energy Office of Science; the SDSS-III web site is http://www.sdss3.org/.\n\t\t\t\t This research has made use of data processed by the Centre d’Analyse de\n\t\t\t\t Données Étendues (http://cade.irap.omp.eu/) and has made use of the\n\t\t\t\t HEALPix pixelization software (http://healpix.sourceforge.net; Górski\n\t\t\t\t et al. 2005). Some of this work was performed using the Darwin Supercomputer\n\t\t\t\t of the University of Cambridge High Performance Computing Service (http:\n\t\t\t\t //www.hpc.cam.ac.uk/), provided by Dell Inc. using Strategic Research\n\t\t\t\t Infrastructure Funding from the Higher Education Funding Council for England\n\t\t\t\t and funding from the Science and Technology Facilities Council.