{"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/introducing-stardis-an-open-and-modular","title":"Introducing STARDIS: An Open and Modular Stellar Spectral Synthesis Code","arxiv_id":"2504.17762","date":"2025-04-24","proceeding":null,"authors":["Joshua V. Shields","Wolfgang Kerzendorf","Isaac G. Smith","Tiago M. D. Pereira","Christian Vogl","Ryan Groneck","Andrew Fullard","Jaladh Singhal","Jing Lu","Christopher J. Fontes"],"abstract":"We introduce a new 1D stellar spectral synthesis Python code called stardis. stardis is a modular, open-source radiative transfer code that is capable of spectral synthesis from near-UV to IR for FGK stars. We describe the structure, inputs, features, underlying physics, and assumptions of stardis as well as the radiative transfer scheme implemented. To validate our code, we show spectral comparisons between stardis and korg with the same input atmospheric structure models, and also compare qualitatively to phoenix for solar models. We find that stardis generally agrees well with korg for solar models on the few percent level or better, that the codes can diverge in the ultraviolet, with more extreme differences in cooler stars. stardis can be found at https://github.com/tardis-sn/stardis, and documentation can be found at https://tardis-sn.github.io/stardis/.","url_abs":"https://arxiv.org/abs/2504.17762v2","url_pdf":"https://arxiv.org/pdf/2504.17762v2.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":"introducing-stardis-an-open-and-modular","repo_url":"https://github.com/tardis-sn/stardis","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":0,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}