Bibcode
Planck Collaboration; Ade, P. A. R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, C.; Banday, A. J.; Barreiro, R. B.; Barrena, R.; Bartlett, J. G.; Bartolo, N.; Battaner, E.; Battye, R.; Benabed, K.; Benoît, A.; Benoit-Lévy, A.; Bernard, J.-P.; Bersanelli, M.; Bielewicz, P.; Bikmaev, I.; Böhringer, H.; Bonaldi, A.; Bonavera, L.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Bucher, M.; Burenin, R.; Burigana, C.; Butler, R. C.; Calabrese, E.; Cardoso, J.-F.; Carvalho, P.; Catalano, A.; Challinor, A.; Chamballu, A.; Chary, R.-R.; Chiang, H. C.; Chon, G.; Christensen, P. R.; Clements, D. L.; Colombi, S.; Colombo, L. P. L.; Combet, C.; Comis, B.; Couchot, F.; Coulais, A.; Crill, B. P.; Curto, A.; Cuttaia, F.; Dahle, H.; Danese, L.; Davies, R. D.; Davis, R. J.; de Bernardis, P.; de Rosa, A.; de Zotti, G.; Delabrouille, J.; Désert, F.-X.; Dickinson, C.; Diego, J. M.; Dolag, K.; Dole, H.; Donzelli, S.; Doré, O.; Douspis, M.; Ducout, A.; Dupac, X.; Efstathiou, G.; Eisenhardt, P. R. M.; Elsner, F.; Enßlin, T. A.; Eriksen, H. K.; Falgarone, E.; Fergusson, J.; Feroz, F.; Ferragamo, A.; Finelli, F.; Forni, O.; Frailis, M.; Fraisse, A. A.; Franceschi, E.; Frejsel, A.; Galeotta, S.; Galli, S.; Ganga, K.; Génova-Santos, R. T.; Giard, M.; Giraud-Héraud, Y.; Gjerløw, E.; González-Nuevo, J.; Górski, K. M.; Grainge, K. J. B.; Gratton, S.; Gregorio, A.; Gruppuso, A.; Gudmundsson, J. E.; Hansen, F. K.; Hanson, D. et al.
Bibliographical reference
Astronomy and Astrophysics, Volume 594, id.A27, 38 pp.
Advertised on:
9
2016
Journal
Citations
655
Refereed citations
602
Description
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 systematic all-sky surveyof 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 >103 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 estimates of the SZ
strength parameter Y5R500are 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.