Mapping the Galactic Metallicity Gradient with Open Clusters: The State-of-the-Art and Future Challenges
Name:
universe-08-00087-v2.pdf
Size:
1.033Mb
Format:
PDF
Description:
Final Published Version
Affiliation
Steward Observatory, University of ArizonaIssue Date
2022Keywords
Chemical compositionChemical evolution
Metallicity
Milky Way
Open clusters
Stars
Stellar spectroscopy
Metadata
Show full item recordPublisher
MDPICitation
Spina, L., Magrini, L., & Cunha, K. (2022). Mapping the Galactic Metallicity Gradient with Open Clusters: The State-of-the-Art and Future Challenges. Universe.Journal
UniverseRights
Copyright © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
In this paper, we make use of data collected for open cluster members by high-resolution spectroscopic surveys and programmes (i.e., APOGEE, Gaia-ESO, GALAH, OCCASO, and SPA). These data have been homogenised and then analysed as a whole. The resulting catalogue contains [Fe/H] and orbital parameters for 251 Galactic open clusters. The slope of the radial metallicity gradient obtained through 175 open clusters with high-quality metallicity determinations is −0.064 ± 0.007 dex kpc−1 . The radial metallicity distribution traced by open clusters flattens beyond RGal = 12.1 ± 1.1 kpc. The slope traced by open clusters in the [Fe/H]-Lz diagram is −0.31 ± 0.02 × 103 dex km−1 kpc−1 s, but it flattens beyond Lz = 2769 ± 177 km kpc s−1 . In this paper, we also review some high-priority practical challenges around the study of open clusters that will significantly push our understanding beyond the state-of-the-art. Finally, we compare the shape of the galactic radial metallicity gradient to those of other spiral galaxies. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.Note
Open access journalISSN
2218-1997Version
Final published versionae974a485f413a2113503eed53cd6c53
10.3390/universe8020087
Scopus Count
Collections
Except where otherwise noted, this item's license is described as Copyright © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).