{"paper":{"title":"Ultra-Compact Dwarfs around NGC 3258 in Antlia","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"2), 2) ((1) Facultad de Ciencias Astron\\'omicas y Geof\\'isicas de la Universidad Nacional de La Plata, (2) Consejo Nacional de Investigaciones Cient\\'ificas y T\\'ecnicas, (3) Departamento de Astronom\\'ia, Argentina, A. V. Smith Castelli (1, Chile), Ciudad Aut\\'onoma de Buenos Aires, Concepci\\'on, Favio Faifer (1, Instituto de Astrof\\'isica de La Plata (CCT La Plata -- CONICET, Juan Pablo Caso (1, La Plata, L. P. Bassino (1, T. Richtler (3), Universidad de Concepci\\'on, UNLP)","submitted_at":"2013-05-08T17:45:09Z","abstract_excerpt":"We present the first compact stellar systems with luminosities in the range of ultra-compact dwarfs (UCDs), discovered in the Antlia galaxy cluster (-10.5 < M_V < -11.6). The magnitude limit between UCDs and globular clusters (CGs) is discussed. By means of imaging from VLT (FORS1), CTIO (MOSAIC), and the HST (ACS) archive, eleven UCDs/bright GCs are selected on the basis of photometry and confirmed as Antlia members through radial velocities measured on new GEMINI (GMOS-S) spectra. In addition, nine UCD candidates are identified taking into account properties derived from their surface bright"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.1896","kind":"arxiv","version":1},"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"}