J-PLUS: On the identification of new cluster members in the double galaxy cluster A2589 & A2593 using PDFs

• Published in: arXiv.org 2018-04
• Main Authors: Molino, A, Costa-Duarte, M V, Mendes de Oliveira, C, Cenarro, A J, Lima Neto, G B, Cypriano, E S, Sodré, L, Coelho, P, Chow-Martínez, M, Monteiro-Oliveira, R, Sampedro, L, Cristobal-Hornillos, D, Varela, J, Ederoclite, A, Chies-Santos, A L, Schoenell, W, Ribeiro, T, Marín-Franch, A, López-Sanjuan, C, Hernández-Fernández, J D, Cortesi, A, H Vázquez Ramió, Santos, W, Cibirka, N, Novais, P, Pereira, E, Hernández-Jimenez, J A, Jimenez-Teja, Y, Moles, M, Benítez, N, Dupke, R
• Format: Article
• Language: English
• Subjects: Broadband; Computer simulation; Distribution functions; Environmental studies; Galactic clusters; Galaxies; Galaxy distribution; Large scale structure of the universe; Luminosity; Photometry; Probability distribution functions; Red shift; Spatial distribution; Stars & galaxies; Universe
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.1804.03640

We aim to use multi-band imaging from the Phase-3 Verification Data of the J-PLUS survey to derive accurate photometric redshifts (photo-z) and look for potential new members in the surroundings of the nearby galaxy clusters A2589 (z=0.0414) & A2593 (z=0.0440), using redshift probability distribution functions. The ultimate goal is to demonstrate the usefulness of a 12-band filter system in the study of large-scale structure in the local universe. We present an optimized pipeline for the estimation of photo-z in clusters of galaxies. We tested our photo-z with a sample of 296 spectroscopically confirmed cluster members with a magnitude of = 16.6 and redshift =0.041. The combination of seven narrow and five broadband filters with a typical photometric-depth of r