{"paper":{"title":"The extended halo of NGC 2682 (M 67) from Gaia DR2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"(2) Institut de Ci\\`encies del Cosmos, 3, 35122 Padova, (3) Physics, 4, 40129 Bologna, 4150-762 Porto, (4) INFN-Padova, 5), (5) Institut f\\\"ur Astro- und Teilchenphysik, (6) INAF-Osservatorio di Astrofisica e Scienza dello Spazio, 7), (7) Instituto de Astrof\\'isica e Ci\\^encias do Espa\\c{c}o, (8) Observatorio de Calar Alto, (9) Centro de Astrobiolog\\'ia (INTA-CSIC), A-6020, A. Bragaglia (6), Almer\\'ia, Astronomy Department Galileo Galilei, Austria, A. Vallenari (1), CAUP, C. Jordi (2), D. Bossini (1, Departamento de Astrof\\'isica. P.O. Box 78, D. Galad\\'i-Enr\\'iquez (8), E-04550-G\\'ergal, E-08028 Barcelona, E-28691, E. Solano (9) ((1) INAF-Osservatorio Astronomico di Padova, I-35122, I-35131 Padova, Innsbruck, Italy, L. Balaguer-N\\'u\\~nez (2), Madrid, Mart\\'i i Franqu\\`es 1, M. Mapelli (1, M. Pasquato (1), Padova, Portugal, R. Carrera (1), Rua das Estrelas, Sierra de los Filabres, Spain, Spanish Virtual Observatory), T. Cantat-Gaudin (2), Technikerstrasse 25/8, Universidade do Porto, Universitat de Barcelona (IEEC-UB), Universit\\\"at Innsbruck, University of Padova, Via Marzolo 8, via P. Gobetti 93/3, Vicolo dell'Osservatorio 3, Vicolo dell'Osservatorio 5, Villanueva de la Ca\\~nada","submitted_at":"2019-05-06T13:08:56Z","abstract_excerpt":"Context: NGC 2682 is a nearby open cluster, approximately 3.5 Gyr old. Dynamically, most open clusters should dissolve on shorter timescales, of ~ 1 Gyr. Having survived until now, NGC 2682 was likely much more massive in the past, and is bound to have an interesting dynamical history. Aims: We investigate the spatial distribution of NGC 2682 stars to constrain its dynamical evolution, especially focusing on the marginally bound stars in the cluster outskirts. Methods: We use Gaia DR2 data to identify NGC 2682 members up to a distance of ~150 pc (10 degrees). Two methods (Clusterix and UPMASK)"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.02020","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"}