{ "id": "1610.08061", "version": "v1", "published": "2016-10-25T20:00:07.000Z", "updated": "2016-10-25T20:00:07.000Z", "title": "A new catalog of homogenised absorption line indices for Milky Way globular clusters from high-resolution integrated spectroscopy", "authors": [ "Hak-Sub Kim", "Jaeil Cho", "Ray M. Sharples", "Alexandre Vazdekis", "Michael A. Beasley", "Suk-Jin Yoon" ], "comment": "21 pages, 10 figures, accepted for publication in ApJS", "categories": [ "astro-ph.GA" ], "abstract": "We perform integrated spectroscopy of 24 Galactic globular clusters. Spectra are observed from one core radius for each cluster with a high wavelength resolution of ~2.0 A FWHM. In combination with two existing data sets from Puzia et al. (2002) and Schiavon et al. (2005), we construct a large database of Lick spectral indices for a total of 53 Galactic globular clusters with a wide range of metallicities, -2.4 < [Fe/H] < 0.1, and various horizontal-branch morphologies. The empirical index-to-metallicity conversion relationships are provided for the 20 Lick indices for the use of deriving metallicities for remote, unresolved stellar systems.", "revisions": [ { "version": "v1", "updated": "2016-10-25T20:00:07.000Z" } ], "analyses": { "keywords": [ "milky way globular clusters", "homogenised absorption line indices", "high-resolution integrated spectroscopy", "galactic globular clusters" ], "note": { "typesetting": "TeX", "pages": 21, "language": "en", "license": "arXiv", "status": "editable" } } }