Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

The Open Cluster Chemical Abundances and Mapping Survey. IV. Abundances for 128 Open Clusters Using SDSS/APOGEE DR16

Donor, John ; Frinchaboy, Peter M. ; Cunha, Katia ; O'connell, Julia E. ; Prieto, Carlos Allende ; Almeida, Andrés ; Anders, Friedrich ; Beaton, Rachael ; Bizyaev, Dmitry and Brownstein, Joel R. , et al. (2020) In The Astronomical Journal 159(5).
Abstract

The Open Cluster Chemical Abundances and Mapping (OCCAM) survey aims to constrain key Galactic dynamical and chemical evolution parameters by the construction of a large, comprehensive, uniform, infrared-based spectroscopic data set of hundreds of open clusters. This fourth contribution from the OCCAM survey presents analysis using Sloan Digital Sky Survey/APOGEE DR16 of a sample of 128 open clusters, 71 of which we designate to be "high quality" based on the appearance of their color-magnitude diagram. We find the APOGEE DR16 derived [Fe/H] abundances to be in good agreement with previous high-resolution spectroscopic open cluster abundance studies. Using the high-quality sample, we measure Galactic abundance gradients in 16 elements,... (More)

The Open Cluster Chemical Abundances and Mapping (OCCAM) survey aims to constrain key Galactic dynamical and chemical evolution parameters by the construction of a large, comprehensive, uniform, infrared-based spectroscopic data set of hundreds of open clusters. This fourth contribution from the OCCAM survey presents analysis using Sloan Digital Sky Survey/APOGEE DR16 of a sample of 128 open clusters, 71 of which we designate to be "high quality" based on the appearance of their color-magnitude diagram. We find the APOGEE DR16 derived [Fe/H] abundances to be in good agreement with previous high-resolution spectroscopic open cluster abundance studies. Using the high-quality sample, we measure Galactic abundance gradients in 16 elements, and find evolution of some of the [X/Fe] gradients as a function of age. We find an overall Galactic [Fe/H] versus R GC gradient of -0.068 ± 0.001 dex kpc-1 over the range of 6 < R GC < 13.9 kpc; however, we note that this result is sensitive to the distance catalog used, varying as much as 15%. We formally derive the location of a break in the [Fe/H] abundance gradient as a free parameter in the gradient fit for the first time. We also measure significant Galactic gradients in O, Mg, S, Ca, Mn, Cr, Cu, Na, Al, and K, some of which are measured for the first time. Our large sample allows us to examine four well-populated age bins in order to explore the time evolution of gradients for a large number of elements and comment on possible implications for Galactic chemical evolution and radial migration.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and , et al. (More)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; and (Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
The Astronomical Journal
volume
159
issue
5
article number
199
publisher
IOP Publishing
external identifiers
  • scopus:85086577420
ISSN
0004-6256
DOI
10.3847/1538-3881/ab77bc
language
English
LU publication?
yes
id
f623ffc3-77be-4edc-bf51-5c82d3b90c94
date added to LUP
2020-12-21 15:01:47
date last changed
2024-04-17 21:34:44
@article{f623ffc3-77be-4edc-bf51-5c82d3b90c94,
  abstract     = {{<p>The Open Cluster Chemical Abundances and Mapping (OCCAM) survey aims to constrain key Galactic dynamical and chemical evolution parameters by the construction of a large, comprehensive, uniform, infrared-based spectroscopic data set of hundreds of open clusters. This fourth contribution from the OCCAM survey presents analysis using Sloan Digital Sky Survey/APOGEE DR16 of a sample of 128 open clusters, 71 of which we designate to be "high quality" based on the appearance of their color-magnitude diagram. We find the APOGEE DR16 derived [Fe/H] abundances to be in good agreement with previous high-resolution spectroscopic open cluster abundance studies. Using the high-quality sample, we measure Galactic abundance gradients in 16 elements, and find evolution of some of the [X/Fe] gradients as a function of age. We find an overall Galactic [Fe/H] versus R <sub>GC</sub> gradient of -0.068 ± 0.001 dex kpc<sup>-1</sup> over the range of 6 &lt; R <sub>GC</sub> &lt; 13.9 kpc; however, we note that this result is sensitive to the distance catalog used, varying as much as 15%. We formally derive the location of a break in the [Fe/H] abundance gradient as a free parameter in the gradient fit for the first time. We also measure significant Galactic gradients in O, Mg, S, Ca, Mn, Cr, Cu, Na, Al, and K, some of which are measured for the first time. Our large sample allows us to examine four well-populated age bins in order to explore the time evolution of gradients for a large number of elements and comment on possible implications for Galactic chemical evolution and radial migration.</p>}},
  author       = {{Donor, John and Frinchaboy, Peter M. and Cunha, Katia and O'connell, Julia E. and Prieto, Carlos Allende and Almeida, Andrés and Anders, Friedrich and Beaton, Rachael and Bizyaev, Dmitry and Brownstein, Joel R. and Carrera, Ricardo and Chiappini, Cristina and Cohen, Roger and García-Hernández, D. A. and Geisler, Doug and Hasselquist, Sten and Jönsson, Henrik and Lane, Richard R. and Majewski, Steven R. and Minniti, Dante and Bidin, Christian Moni and Pan, Kaike and Roman-Lopes, Alexandre and Sobeck, Jennifer S. and Zasowski, Gail}},
  issn         = {{0004-6256}},
  language     = {{eng}},
  number       = {{5}},
  publisher    = {{IOP Publishing}},
  series       = {{The Astronomical Journal}},
  title        = {{The Open Cluster Chemical Abundances and Mapping Survey. IV. Abundances for 128 Open Clusters Using SDSS/APOGEE DR16}},
  url          = {{http://dx.doi.org/10.3847/1538-3881/ab77bc}},
  doi          = {{10.3847/1538-3881/ab77bc}},
  volume       = {{159}},
  year         = {{2020}},
}