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

We present the all-sky Planck catalogue of Sunyaev-Zeldovich (SZ) sources detected from the 29 month full-mission data. The catalogue (PSZ2) is the largest SZ-selected sample of galaxy clusters yet produced and the deepest all-sky catalogue of galaxy clusters. It contains 1653 detections, of which 1203 are confirmed clusters with identified counterparts in external data-sets, and is the first SZ-selected cluster survey containing > $10^3$ confirmed clusters. We present a detailed analysis of the survey selection function in terms of its completeness and statistical reliability, placing a lower limit of 83% on the purity. Using simulations, we find that the Y5R500 estimates are robust to pressure-profile variation and beam systematics, but accurate conversion to Y500 requires. the use of prior information on the cluster extent. We describe the multi-wavelength search for counterparts in ancillary data, which makes use of radio, microwave, infra-red, optical and X-ray data-sets, and which places emphasis on the robustness of the counterpart match. We discuss the physical properties of the new sample and identify a population of low-redshift X-ray under- luminous clusters revealed by SZ selection. These objects appear in optical and SZ surveys with consistent properties for their mass, but are almost absent from ROSAT X-ray selected samples.

C. A. Oxborrow | R. B. Barreiro | J. Cardoso | J. Tuovinen | F. Pasian | L. Valenziano | H. Kurki-Suonio | P. Lilje | N. Aghanim | J. Bartlett | C. Baccigalupi | K. Benabed | M. Kunz | G. Morgante | M. Douspis | M. Frailis | A. Zacchei | S. Colombi | J. Lesgourgues | A. Melchiorri | V. Pettorino | R. G'enova-Santos | P. McGehee | J. Rubino-Mart'in | E. Rykoff | A. Streblyanska | O. Forni | T. Ensslin | E. Hivon | A. Banday | F. Hansen | M. Reinecke | F. Feroz | M. Hobson | A. Lasenby | R. Saunders | K. Grainge | A. Challinor | B. Wandelt | E. Wright | F. Bouchet | S. Matarrese | J. Borrill | P. Bernardis | A. Jaffe | C. Netterfield | R. Stompor | J. Bond | B. Crill | K. Ganga | W. Jones | F. Piacentini | S. Prunet | G. Efstathiou | E. Rozo | M. Juvela | J. Diego | A. Moss | S. White | A. Benoit-Lévy | R. Rebolo | A. Coulais | A. Gregorio | P. Christensen | M. Ashdown | C. Lawrence | B. Rusholme | E. Pierpaoli | R. Davis | T. Kisner | T. Jaffe | H. Eriksen | F. Couchot | S. Plaszczynski | W. Reach | H. Nørgaard-Nielsen | R. Davies | C. Dickinson | T. Pearson | P. Ade | M. Arnaud | J. Aumont | E. Battaner | A. Benoit | J. Bernard | M. Bersanelli | P. Bielewicz | A. Bonaldi | L. Bonavera | M. Bucher | C. Burigana | R. C. Butler | A. Catalano | A. Chamballu | R. Chary | H. Chiang | D. Clements | L. Colombo | A. Curto | F. Cuttaia | L. Danese | G. Zotti | J. Delabrouille | F. D'esert | H. Dole | S. Donzelli | O. Dor'e | X. Dupac | E. Falgarone | F. Finelli | A. Fraisse | E. Franceschi | S. Galeotta | M. Giard | Y. Giraud-H'eraud | J. Gonz'alez-Nuevo | K. M. G'orski | S. Gratton | A. Gruppuso | D. Hanson | D. Harrison | S. Henrot-Versill'e | C. Hern'andez-Monteagudo | D. Herranz | S. Hildebrandt | W. Holmes | A. Hornstrup | W. Hovest | K. Huffenberger | E. Keihanen | R. Keskitalo | R. Kneissl | J. Knoche | G. Lagache | J. Lamarre | R. Leonardi | M. Liguori | M. Linden-Vørnle | M. L'opez-Caniego | P. Lubin | J. Mac'ias-P'erez | D. Maino | N. Mandolesi | P. Martin | E. Mart'inez-Gonz'alez | P. Mazzotta | L. Mendes | A. Mennella | M. Migliaccio | S. Mitra | M. Miville-Deschênes | A. Moneti | L. Montier | D. Mortlock | D. Munshi | P. Naselsky | F. Nati | P. Natoli | F. Noviello | D. Novikov | I. Novikov | F. Paci | L. Pagano | F. Pajot | D. Paoletti | G. Patanchon | O. Perdereau | L. Perotto | F. Perrotta | M. Piat | D. Pietrobon | E. Pointecouteau | G. Polenta | G. Pratt | G. Prezeau | J. Puget | J. Rachen | M. Remazeilles | C. Renault | A. Renzi | I. Ristorcelli | G. Rocha | C. Rosset | G. Roudier | M. Sandri | D. Santos | G. Savini | D. Scott | M. Seiffert | E. Shellard | L. Spencer | R. Sudiwala | R. Sunyaev | D. Sutton | A. Suur-Uski | J. Sygnet | J. Tauber | L. Terenzi | L. Toffolatti | M. Tomasi | M. Tristram | M. Tucci | G. Umana | J. Valiviita | B. Tent | P. Vielva | F. Villa | L. Wade | I. Wehus | D. Yvon | A. Zonca | E. Calabrese | K. Dolag | F. Elsner | S. Galli | E. Gjerløw | J. Gudmundsson | M. Lattanzi | J. Melin | J. Murphy | M. Savelainen | V. Stolyarov | H. Dahle | S. Mei | N. Bartolo | R. Battye | C. Combet | A. Ducout | J. Fergusson | A. Frejsel | G. Hurier | F. Levrier | G. Maggio | A. Mangilli | M. Rossetti | A. Hempel | S. Masi | I. Khamitov | A. Rosa | S. Stanford | R. Barrena | I. Bikmaev | H. Bohringer | R. Burenin | P. Carvalho | G. Chon | B. Comis | P. Eisenhardt | A. Ferragamo | T. Jin | D. Mak | A. Nastasi | M. Olamaie | Y. Perrott | C. Rumsey | M. Schammel | T. Shimwell | D. Stern | D. Tramonte | F. Lévrier | D. Scott | P. Christensen | P. Mcgehee | S. White | D. Scott | A. D. Rosa | J. Murphy

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