Kim, H.-S. and Cho, J. and Sharples, R.M. and Vazdekis, A. and Beasley, M.A. and Yoon, S.-J. (2016) 'A new catalog of homogenised absorption line indices for Milky Way globular clusters from high-resolution integrated spectroscopy.', Astrophysical journal supplement., 227 (2). p. 24.
Abstract
We perform integrated spectroscopy of 24 Galactic globular clusters (GGCs). Spectra are observed from one core radius for each cluster with a high wavelength resolution of ~2.0 Å FWHM. In combination with two existing data sets from Puzia et al. and Schiavon et al., we construct a large database of Lick spectral indices for a total of 53 GGCs with a wide range of metallicities, −2.4 lesssim [Fe/H] lesssim 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.
| Item Type: | Article |
|---|---|
| Full text: | (AM) Accepted Manuscript Download PDF (3167Kb) |
| Full text: | (VoR) Version of Record Download PDF (3430Kb) |
| Status: | Peer-reviewed |
| Publisher Web site: | https://doi.org/10.3847/1538-4365/227/2/24 |
| Publisher statement: | © 2016. The American Astronomical Society. All rights reserved. |
| Date accepted: | 20 October 2016 |
| Date deposited: | 07 December 2016 |
| Date of first online publication: | 09 December 2016 |
| Date first made open access: | No date available |
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