{"paper":{"title":"Spectral energy distributions and age estimates of 104 M31 globular clusters","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"2, 3), 5), Astronomy, Astrophysics, Chinese Academy of Sciences; (2) Graduate University, Chinese Academy of Sciences; (3) Key Laboratory of Optical Astronomy, Chinese Academy of Sciences; (4) Kavli Institute for Astronomy, Jun Ma (1, National Astronomical Observatories, Peking University; (5) Department of Physics, Richard de Grijs (4, Song Wang (1, University of Sheffield), Xu Zhou (1) ((1) National Astronomical Observatories, Zhou Fan (1)","submitted_at":"2010-01-22T08:42:05Z","abstract_excerpt":"We present photometry of 104 M31 globular clusters (GCs) and GC candidates in 15 intermediate-band filters of the Beijing-Arizona-Taiwan-Connecticut (BATC) photometric system. The GCs and GC candidates were selected from the Revised Bologna Catalog (v.3.5). We obtain the cluster ages by comparing the photometric data with up-to-date theoretical synthesis models. The photometric data used are {\\sl GALEX} far- and near-ultraviolet and 2MASS near-infrared $JHK_{\\rm s}$ magnitudes, combined with optical photometry. The ages of our sample clusters cover a large range, although most clusters are you"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.3939","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"}