{"paper":{"title":"Stellar Populations of over one thousand $z\\sim0.8$ Galaxies from LEGA-C: Ages and Star Formation Histories from D$_n$4000 and H$\\delta$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Adam Muzzin, Anna Gallazzi, Arjen van der Wel, Camilla Pacifici, Caroline Straatman, David Sobral, Eric F. Bell, Gabriel B. Brammer, Hans-Walter Rix, Ivana Bari\\v{s}i\\'c, Jesse van de Sande, Joao Calhau, Josha van Houdt, Justin Spilker, Marijn Franx, Michael V. Maseda, Pieter van Dokkum, Po-Feng Wu, Priscilla Chauke, Rachel Bezanson, Vivienne Wild","submitted_at":"2018-02-19T19:00:13Z","abstract_excerpt":"Drawing from the LEGA-C dataset, we present the spectroscopic view of the stellar population across a large volume- and mass-selected sample of galaxies at large lookback time. We measure the 4000\\AA\\ break (D$_n$4000) and Balmer absorption line strengths (probed by H$\\delta$) from 1019 high-quality spectra of $z=0.6 - 1.0$ galaxies with $M_\\ast = 2 \\times 10^{10} M_\\odot - 3 \\times 10^{11} M_\\odot$. Our analysis serves as a first illustration of the power of high-resolution, high-S/N continuum spectroscopy at intermediate redshifts as a qualitatively new tool to constrain galaxy formation mod"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06799","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"}