The PSZ-MCMF catalogue of Planck clusters over the DES region
D. Hern\'andez-Lang, M. Klein, J. J. Mohr, S. Grandis, J.-B. Melin, P., Tarr\'io, M. Arnaud, G.W. Pratt, T. M. C. Abbott, M. Aguena, O. Alves, F., Andrade-Oliveira, D. Bacon, E. Bertin, D. Brooks, D. L. Burke, A. Carnero, Rosell, M. Carrasco Kind, J. Carretero, F. J. Castander

TL;DR
This paper introduces a new catalogue of 853 confirmed Planck galaxy clusters over the DES region, including 589 new discoveries, with detailed properties and a contamination estimate, enhancing the understanding of low-mass clusters up to redshift 1.3.
Contribution
The paper presents the first systematic follow-up of Planck SZE candidates down to S/N of 3 using the MCMF algorithm, resulting in a comprehensive, high-purity cluster catalogue with redshifts and mass estimates.
Findings
Catalogue contains 853 confirmed clusters with 90% purity.
Includes 589 new Planck clusters not previously identified.
Contamination fraction of initial candidates is approximately 50%.
Abstract
We present the first systematic follow-up of Planck Sunyaev-Zeldovich effect (SZE) selected candidates down to signal-to-noise (S/N) of 3 over the 5000 deg covered by the Dark Energy Survey. Using the MCMF cluster confirmation algorithm, we identify optical counterparts, determine photometric redshifts and richnesses and assign a parameter, , that reflects the probability that each SZE-optical pairing represents a random superposition of physically unassociated systems rather than a real cluster. The new PSZ-MCMF cluster catalogue consists of 853 MCMF confirmed clusters and has a purity of 90%. We present the properties of subsamples of the PSZ-MCMF catalogue that have purities ranging from 90% to 97.5%, depending on the adopted threshold. Halo mass estimates , redshifts, richnesses, and optical centers are presented for all PSZ-MCMF clusters.…
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Taxonomy
TopicsCosmology and Gravitation Theories · Advanced Thermodynamics and Statistical Mechanics · Galaxies: Formation, Evolution, Phenomena
