{ "id": "astro-ph/9911382", "version": "v1", "published": "1999-11-19T17:02:41.000Z", "updated": "1999-11-19T17:02:41.000Z", "title": "The Age of the Galactic Disk", "authors": [ "Giovanni Carraro" ], "comment": "10 pages, 4 figure, invited review, in \"The chemical evolution of the Milky Way : Stars vs Clusters, Vulcano (Italy), 20-24 September 1999", "categories": [ "astro-ph" ], "abstract": "I review different methods devised to derive the age of the Galactic Disk, namely the Radio-active Decay (RD), the Cool White Dwarf Luminosity Function (CWDLF), old opne clusters (OOC) and the Color Magnitude Diagram (CMD) of the stars in the solar vicinity. I argue that the disk is likely to be 8-10 Gyr old. Since the bulk of globulars has an age around 13 Gyr, the possibility emerges that the Galaxy experienced a minimum of Star Formation at the end of the halo/bulge formation. This minimum might reflect the time at which the Galaxy started to acquire material to form the disk inside-out.", "revisions": [ { "version": "v1", "updated": "1999-11-19T17:02:41.000Z" } ], "analyses": { "keywords": [ "galactic disk", "cool white dwarf luminosity function", "old opne clusters", "color magnitude diagram", "star formation" ], "tags": [ "review article" ], "publication": { "doi": "10.1007/978-94-010-0938-6_34" }, "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "inspire": 520405, "adsabs": "2000ASSL..255..335C" } } }