The Open Cluster Chemical Abundances and Mapping Survey. VI. Galactic Chemical Gradient Analysis from APOGEE DR17Show full item record
|Title||The Open Cluster Chemical Abundances and Mapping Survey. VI. Galactic Chemical Gradient Analysis from APOGEE DR17|
|Author||Myers N.; Donor J.; Spoo T.; Frinchaboy P.M.; Cunha K.; Price-Whelan A.M.; Majewski S.R.; Beaton R.L.; Zasowski G.; O'connell J.; Ray A.E.; Bizyaev D.; Chiappini C.; García-Hernández D.A.; Geisler D.; Jönsson H.; Lane R.R.; Longa-Peña P.; Minchev I.; Minniti D.; Nitschelm C.; Roman-Lopes A.|
|Abstract||The goal of the Open Cluster Chemical Abundances and Mapping (OCCAM) survey is to constrain key Galactic dynamic and chemical evolution parameters by the construction and analysis of a large, comprehensive, uniform data set of infrared spectra for stars in hundreds of open clusters. This sixth contribution from the OCCAM survey presents analysis of SDSS/APOGEE Data Release 17 (DR17) results for a sample of stars in 150 open clusters, 94 of which we designate to be "high-quality"based on the appearance of their color-magnitude diagram. We find the APOGEE DR17-derived [Fe/H] values to be in good agreement with those from previous high-resolution spectroscopic open cluster abundance studies. Using a subset of the high-quality sample, the Galactic abundance gradients were measured for 16 chemical elements, including [Fe/H], for both Galactocentric radius (R GC) and guiding center radius (R guide). We find an overall Galactic [Fe/H] versus R GC gradient of -0.073 ± 0.002 dex kpc-1 over the range of 6 > R GC < 11.5 kpc, and a similar gradient is found for [Fe/H] versus R guide. Significant Galactic abundance gradients are also noted for O, Mg, S, Ca, Mn, Na, Al, K, and Ce. Our large sample additionally allows us to explore the evolution of the gradients in four age bins for the remaining 15 elements. © 2022. The Author(s). Published by the American Astronomical Society.|
|Department||Physics and Astronomy|
|Subject||Open star clusters
Milky Way evolution
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The Open Cluster Chemical Abundances and Mapping Survey. V. Chemical Abundances of CTIO/Hydra Clusters Using the Cannon Ray A.E.; Frinchaboy P.M.; Donor J.; Chojnowski S.D.; Melendez M. (2022)Open clusters are key chemical and age tracers of Milky Way evolution. While open clusters provide significant constraints on galaxy evolution, their use has been limited due to discrepancies in measuring abundances from ...
Ray, Amy ELaine,author. (2018)Open clusters are key tracers of Milky Way, as both chemical and age tracers. The use of open cluster to provide significant constraints on galaxy evolution, however, has been limited due to discrepancies in measuring ...
Spoo T.; Tayar J.; Frinchaboy P.M.; Cunha K.; Myers N.; Donor J.; Majewski S.R.; Bizyaev D.; García-Hernández D.A.; Jönsson H.; Lane R.R.; Pan K.; Longa-Peña P.; Roman-Lopes A. (2022)Large-scale surveys open the possibility to investigate Galactic evolution both chemically and kinematically; however, reliable stellar ages remain a major challenge. Detailed chemical information provided by high-resolution ...