{"paper":{"title":"Proto-groups at 1.8<z<3 in the zCOSMOS-deep sample","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Bongiorno, A. Cappi, A. Cimatti, A. Iovino, A. M. Koekemoer, A. Renzini, B. Garilli, C. Diener, C. Knobel, C. L\\'opez-Sanjuan, C. Maier, C. M. Carollo, D. Vergani, E. Perez Montero, E. Zucca, F. Lamareille, G. Coppa, G. Lemson, G. Zamorani, H. J. McCracken, J.-F. Le Borgne, J.-P. Kneib, J. Silverman, K. Caputi, K. Kova\\v{c}, L. de Ravel, L. Pozzetti, L. Tasca, L. Tresse, M. Bolzonella, M. Mignoli, M. Moresco, M. Scodeggio, M. Tanaka, N. Scoville, N. Welikala, O. Cucciati, O. Le Fevre, P. Franzetti, P. Kampczyk, P. Nair, R. Bordoloi, R. Pello, S. Bardelli, S. de la Torre, S. J. Lilly, T. Contini, V. Le Brun, V. Mainieri, V. Presotto, Y. Peng","submitted_at":"2012-10-09T20:00:01Z","abstract_excerpt":"We identify 42 candidate groups lying between 1.8<z<3.0 from a sample of 3502 galaxies with spectroscopic redshifts in the zCOSMOS-deep redshift survey within the same redshift interval. These systems contain three to five spectroscopic galaxies that lie within 500kpc in projected distance (in physical space) and within 700km/s in velocity. Based on extensive analysis of mock catalogues that have been generated from the Millennium simulation, we examine the likely nature of these systems at the time of observation, and what they will evolve into down to the present epoch. Although few of the \""},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.2723","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}