Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/341100
Type: Artigo
Title: A new RASS galaxy cluster catalogue with low contamination extending to z similar to 1 in the DES overlap region
Author: Klein, M.
Grandis, S.
Mohr, J. J.
Paulus, M.
Abbott, T. M. C.
Annis, J.
Avila, S.
Bertin, E.
Brooks, D.
Buckley-Geer, E.
Rosell, A. C.
Kind, M. C.
Carretero, J.
Castander, F. J.
Cunha, C. E.
D'Andrea, C. B.
da Costa, L. N.
De Vicente, J.
Desai, S.
Diehl, H. T.
Dietrich, J. P.
Doel, P.
Evrard, A. E.
Flaugher, B.
Fosalba, P.
Frieman, J.
Garcia-Bellido, J.
Gaztanaga, E.
Giles, P. A.
Gruen, D.
Gruendl, R. A.
Gschwend, J.
Gutierrez, G.
Hartley, W. G.
Hollowood, D. L.
Honscheid, K.
Hoyle, B.
James, D. J.
Jeltema, T.
Kuehn, K.
Kuropatkin, N.
Lima, M.
Maia, M. A. G.
March, M.
Marshall, J. L.
Menanteau, F.
Miquel, R.
Ogando, R. L. C.
Plazas, A. A.
Romer, A. K.
Roodman, A.
Sanchez, E.
Scarpine, V.
Schindler, R.
Serrano, S.
Sevilla-Noarbe, I.
Smith, M.
Smith, R. C.
Soares-Santos, M.
Sobreira, F.
Suchyta, E.
Swanson, M. E. C.
Tarle, G.
Thomas, D.
Vikram, V.
Abstract: We present the MARD-Y3 catalogue of between 1086 and 2171 galaxy clusters (52 per cent and 65 per cent new) produced using multicomponent matched filter (MCMF) follow-up in 5000 deg(2) of DES-Y3 optical data of the similar to 20 000 overlapping ROSAT All-Sky Survey source catalogue (2RXS) X-ray sources. Optical counterparts are identified as peaks in galaxy richness as a function of redshift along the line of sight towards each 2RXS source within a search region informed by an X-ray prior. All peaks are assigned a probability f(cont) of being a random superposition. The clusters lie at 0.02 < z < 1.1 with more than 100 clusters at z gt; 0.5. Residual contamination is 2.6 per cent and 9.6 per cent for the cuts adopted here. For each cluster we present the optical centre, redshift, rest frame X-ray luminosity, M-500 mass, coincidence with NWAY infrared sources, and estimators of dynamical state. About 2 per cent of MARD-Y3 clusters have multiple possible counterparts, the photo-z's are high quality with sigma(Delta z/(1 + z)) = 0.0046, and similar to 1 per cent of clusters exhibit evidence of X-ray luminosity boosting from emission by cluster active galactic nuclei. Comparison with other catalogues (MCXC, RM, SPT-SZ, Planck) is performed to test consistency of richness, luminosity, and mass estimates. We measure the MARD-Y3 X-ray luminosity function and compare it to the expectation from a fiducial cosmology and externally calibrated luminosity-and richness-mass relations. Agreement is good, providing evidence that MARD-Y3 has low contamination and can be understood as a simple two step selection - X-ray and then optical - of an underlying cluster population described by the halo mass function.
Subject: Galáxias - Aglomerados
Distâncias cosmológicas
Matéria escura (Astronomia)
Galaxies - Clusters
Cosmological distances
Dark matter (Astronomy)
Country: Reino Unido
Editor: Oxford University Press
Rights: aberto
Identifier DOI: 10.1093/mnras/stz1463
Address: https://academic.oup.com/mnras/article/488/1/739/5505846
Date Issue: 2019
Appears in Collections:IFGW - Artigos e Outros Documentos

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