{"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/a-visible-light-lyot-coronagraph-for-scexao","title":"A Visible-light Lyot Coronagraph for SCExAO/VAMPIRES","arxiv_id":"2208.02380","date":"2022-08-03","proceeding":null,"authors":["Miles Lucas","Michael Bottom","Olivier Guyon","Julien Lozi","Barnaby Norris","Vincent Deo","Sebastien Vievard","Kyohoon Ahn","Nour Skaf","Peter Tuthill"],"abstract":"We describe the design and initial results from a visible-light Lyot coronagraph for SCExAO/VAMPIRES. The coronagraph is comprised of four hard-edged, partially transmissive focal plane masks with inner working angles of 36 mas, 55 mas, 92 mas, and 129 mas, respectively. The Lyot stop is a reflective, undersized design with a geometric throughput of 65.7%. Our preliminary on-sky contrast is 1e-2 at 0.1\" to 1e-4 at 0.75\" for all mask sizes. The coronagraph was deployed in early 2022 and is available for open use.","url_abs":"https://arxiv.org/abs/2208.02380v1","url_pdf":"https://arxiv.org/pdf/2208.02380v1.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":"a-visible-light-lyot-coronagraph-for-scexao","repo_url":"https://github.com/mileslucas/vampires-coronagraph","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":0,"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}