{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/semi-analytic-galaxy-evolution-sage-model","title":"Semi-Analytic Galaxy Evolution (SAGE): Model Calibration and Basic Results","arxiv_id":"1601.04709","date":"2016-01-18","proceeding":null,"authors":["Darren J. Croton","Adam R. H. Stevens","Chiara Tonini","Thibault Garel","Maksym Bernyk","Antonio Bibiano","Luke Hodkinson","Simon J. Mutch","Gregory B. Poole","Genevieve M. Shattow"],"abstract":"This paper describes a new publicly available codebase for modelling galaxy formation in a cosmological context, the \"Semi-Analytic Galaxy Evolution\" model, or SAGE for short. SAGE is a significant update to that used in Croton et al. (2006) and has been rebuilt to be modular and customisable. The model will run on any N-body simulation whose trees are organised in a supported format and contain a minimum set of basic halo properties. In this work we present the baryonic prescriptions implemented in SAGE to describe the formation and evolution of galaxies, and their calibration for three N-body simulations: Millennium, Bolshoi, and GiggleZ. Updated physics include: gas accretion, ejection due to feedback, and reincorporation via the galactic fountain; a new gas cooling--radio mode active galactic nucleus (AGN) heating cycle; AGN feedback in the quasar mode; a new treatment of gas in satellite galaxies; and galaxy mergers, disruption, and the build-up of intra-cluster stars. Throughout, we show the results of a common default parameterization on each simulation, with a focus on the local galaxy population.","url_abs":"http://arxiv.org/abs/1601.04709v3","url_pdf":"http://arxiv.org/pdf/1601.04709v3.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"semi-analytic-galaxy-evolution-sage-model","repo_url":"https://github.com/darrencroton/sage","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":1,"framework":"none","reach":null},{"paper_slug":"semi-analytic-galaxy-evolution-sage-model","repo_url":"https://github.com/dptriani/dusty-sage","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null},{"paper_slug":"semi-analytic-galaxy-evolution-sage-model","repo_url":"https://github.com/dptriani/sage-dust","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null},{"paper_slug":"semi-analytic-galaxy-evolution-sage-model","repo_url":"https://github.com/jacobseiler/rsage","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null},{"paper_slug":"semi-analytic-galaxy-evolution-sage-model","repo_url":"https://github.com/manodeep/lfs_sage","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null},{"paper_slug":"semi-analytic-galaxy-evolution-sage-model","repo_url":"https://github.com/mojtabaraouf/sage","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null},{"paper_slug":"semi-analytic-galaxy-evolution-sage-model","repo_url":"https://github.com/sage-home/sage-model","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"syntology_url":null,"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}