Journal
ASTRONOMICAL JOURNAL
Volume 156, Issue 4, Pages -Publisher
IOP Publishing Ltd
DOI: 10.3847/1538-3881/aad635
Keywords
Galaxy: abundances; Galaxy: disk; Galaxy: evolution; open clusters and associations: general
Categories
Funding
- National Science Foundation [AST-1311835, AST-1715662, AST-0907873]
- TCU RCAF program
- JFSRP program
- TCU SERC grant [PHY-0851558]
- NSF REU [PHY-0851558]
- Spanish Ministry of Economy and Competitiveness (MINECO) [AYA-2017-88254-P]
- Alfred P. Sloan Foundation
- National Science Foundation
- U.S. Department of Energy Office of Science
- Center for High-Performance Computing at the University of Utah
- SDSS-III Collaboration including the University of Arizona
- Brazilian Participation Group
- Brookhaven National Laboratory
- Carnegie Mellon University
- University of Florida
- French Participation Group
- German Participation Group
- Harvard University
- Instituto de Astrofisica de Canarias
- Michigan State/Notre Dame/JINA Participation Group
- Johns Hopkins University
- Lawrence Berkeley National Laboratory
- Max Planck Institute for Astrophysics
- Max Planck Institute for Extraterrestrial Physics
- New Mexico State University
- New York University
- Ohio State University
- Pennsylvania State University
- University of Portsmouth
- Princeton University
- Spanish Participation Group
- University of Tokyo
- University of Utah
- Vanderbilt University
- University of Virginia
- University of Washington
- Yale University
- SDSS Collaboration including the Brazilian Participation Group
- Carnegie Institution for Science
- Chilean Participation Group
- Harvard-Smithsonian Center for Astrophysics
- Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo
- Leibniz Institut fur Astrophysik Potsdam (AIP)
- Max-Planck-Institut fur Astronomie (MPIA Heidelberg)
- Max-Planck-Institut fur Astrophysik (MPA Garching)
- Max-PlanckInstitut fur Extraterrestrische Physik (MPE)
- National Astronomical Observatories of China
- University of Notre Dame
- Observatario Nacional/MCTI
- Shanghai Astronomical Observatory
- United Kingdom Participation Group
- Universidad Nacional Autonoma de Mexico
- University of Arizona, University of Colorado Boulder
- University of Oxford
- University of Wisconsin
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [1311835] Funding Source: National Science Foundation
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The Open Cluster Chemical Abundances and Mapping (OCCAM) survey aims to produce a comprehensive, uniform, infrared-based spectroscopic data set for hundreds of open clusters, and to constrain key Galactic dynamical and chemical parameters from this sample. This second contribution from the OCCAM survey presents analysis of 259 member stars with [Fe/H] determinations in 19 open clusters, using Sloan Digital Sky Survey Data Release 14 (SDSS/DR14) data from the Apache Point Observatory Galactic Evolution Experiment and ESA Gaia. This analysis, which includes clusters with R-GC ranging from 7 to 13 kpc, measures an [Fe/H] gradient of -0.061 +/- 0.004 dex kpc(-1). We also confirm evidence of a significant positive gradient in the alpha-elements ([O/Fe], [Mg/Fe], and [Si/Fe]) and present evidence for a significant negative gradient in iron-peak elements ([Mn/Fe] and [Ni/Fe]).
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