The Open Cluster Chemical Abundances and Mapping Survey. II. Precision Cluster Abundances for APOGEE Using SDSS DR14

John Donor; Peter M. Frinchaboy; Katia Cunha; Benjamin Thompson; Julia O'Connell; Gail Zasowski; Kelly M. Jackson; Brianne Meyer McGrath; Andrés Almeida; Dmitry Bizyaev; Ricardo Carrera; D. A. Garcia-Hernández; Christian Nitschelm; Kaike Pan; Olga Zamora

doi:10.3847/1538-3881/aad635

The Open Cluster Chemical Abundances and Mapping Survey. II. Precision Cluster Abundances for APOGEE Using SDSS DR14

John Donor
, Peter M. Frinchaboy
, Katia Cunha
, Benjamin Thompson
, Julia O'Connell
, Gail Zasowski
, Kelly M. Jackson
, Brianne Meyer McGrath
, Andrés Almeida
, Dmitry Bizyaev
, Ricardo Carrera
, D. A. Garcia-Hernández
, Christian Nitschelm
, Kaike Pan
, Olga Zamora

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

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 α-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]).

Original language	English (US)
Article number	142
Journal	Astronomical Journal
Volume	156
Issue number	4
DOIs	https://doi.org/10.3847/1538-3881/aad635
State	Published - Oct 2018
Externally published	Yes

Keywords

Galaxy: abundances
Galaxy: disk
Galaxy: evolution
open clusters and associations: general

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-3881/aad635

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Donor, J., Frinchaboy, P. M., Cunha, K., Thompson, B., O'Connell, J., Zasowski, G., Jackson, K. M., McGrath, B. M., Almeida, A., Bizyaev, D., Carrera, R., Garcia-Hernández, D. A., Nitschelm, C., Pan, K., & Zamora, O. (2018). The Open Cluster Chemical Abundances and Mapping Survey. II. Precision Cluster Abundances for APOGEE Using SDSS DR14. Astronomical Journal, 156(4), Article 142. https://doi.org/10.3847/1538-3881/aad635

Donor, J, Frinchaboy, PM, Cunha, K, Thompson, B, O'Connell, J, Zasowski, G, Jackson, KM, McGrath, BM, Almeida, A, Bizyaev, D, Carrera, R, Garcia-Hernández, DA, Nitschelm, C, Pan, K & Zamora, O 2018, 'The Open Cluster Chemical Abundances and Mapping Survey. II. Precision Cluster Abundances for APOGEE Using SDSS DR14', Astronomical Journal, vol. 156, no. 4, 142. https://doi.org/10.3847/1538-3881/aad635

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abstract = "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 α-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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AU - O'Connell, Julia

AU - Zasowski, Gail

AU - Jackson, Kelly M.

AU - McGrath, Brianne Meyer

AU - Almeida, Andrés

AU - Bizyaev, Dmitry

AU - Carrera, Ricardo

AU - Garcia-Hernández, D. A.

AU - Nitschelm, Christian

AU - Pan, Kaike

AU - Zamora, Olga

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AB - 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 α-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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KW - Galaxy: disk

KW - Galaxy: evolution

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The Open Cluster Chemical Abundances and Mapping Survey. II. Precision Cluster Abundances for APOGEE Using SDSS DR14

Abstract

Keywords

ASJC Scopus subject areas

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