{"paper":{"title":"The star formation history of CALIFA galaxies: Radial structures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"A. Gallazzi, A. L. de Amorim, A. Quirrenbach, B. Husemann, CALIFA Collaboration, C. Cortijo-Ferrero, C. J. Walcher, D. Kupko, D. Mast, E. P\\'erez, G. van de Ven, J. Alves, J. Bland-Hawthorn, J. Falc\\'on-Barroso, J. M. V\\'ilchez, L. Wisotzki, M. Lyubenova, M. Moll\\'a, P. S\\'anchez-Bl\\'azquez, R. A. Marino, R. Cid Fernandes, R. C. Kennicutt Jr., R. Garc\\'ia-Benito, R. L\\'opez Fern\\'andez, R. M. Gonz\\'alez Delgado, S. Bekeraite, S. F. S\\'anchez","submitted_at":"2013-10-21T12:04:08Z","abstract_excerpt":"We study the radial structure of the stellar mass surface density ($\\mu$) and stellar population age as a function of the total stellar mass and morphology for a sample of 107 galaxies from the CALIFA survey. We use the fossil record to recover the star formation history (SFH) in spheroidal and disk dominated galaxies with masses from 10$^9$ to 10$^{12}$ M$_\\odot$. We derive the half mass radius, and we find that galaxies are on average 15% more compact in mass than in light. HMR/HLR decreases with increasing mass for disk galaxies, but is almost constant in spheroidal galaxies. We find that t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.5517","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"}