{"paper":{"title":"The ALHAMBRA survey: 2-D analysis of the stellar populations in massive early-type galaxies at z < 0.3","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Borlaff, A. Del Olmo, A. Fern\\'andez-Soto, A. J. Cenarro, B. Ascaso, C. L\\'opez-Sanjuan, D. Crist\\'obal-Hornillos, D. Muniesa, E. J. Alfaro, F. J. Castander, F. Prada, I. M\\'arquez, I. San Roman, J. A. L. Aguerri, J. Cabrera-Ca\\~no, J. Cepa, J. Masegosa, J. M. Quintana, J. Perea, J. Varela, K. Viironen, L. A. D\\'iaz-Garc\\'ia, L. Infante, M. Cervi\\~no, M. Moles, M. Povic, N. Ben\\'itez, P. S\\'anchez-Bl\\'azquez, R. M. Gonz\\'alez Delgado, S. Bonoli, T. Broadhurst, V. J. Mart\\'inez","submitted_at":"2017-07-25T13:41:08Z","abstract_excerpt":"We present a technique that permits the analysis of stellar population gradients in a relatively low cost way compared to IFU surveys analyzing a vastly larger samples as well as out to larger radii. We developed a technique to analyze unresolved stellar populations of spatially resolved galaxies based on photometric multi-filter surveys. We derived spatially resolved stellar population properties and radial gradients by applying a Centroidal Voronoi Tesselation and performing a multi-color photometry SED fitting. This technique has been applied to a sample of 29 massive (M$_{\\star}$ > 10$^{10"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.07991","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"}