The Open Cluster Chemical Abundances and Mapping Survey: VI. Galactic Chemical Gradient Analysis from APOGEE DR17

Autor: Myers, Natalie, Donor, John, Spoo, Taylor, Frinchaboy, Peter M., Cunha, Katia, Price-Whelan, Adrian M., Majewski, Steven R., Beaton, Rachael L., Zasowski, Gail, O'Connell, Julia, Ray, Amy E., Bizyaev, Dmitry, Chiappini, Cristina, García-Hernández, D. A., Geisler, Doug, Jönsson, Henrik, Lane, Richard R., Longa-Peña, Penélope, Minchev, Ivan, Minniti, Dante, Nitschelm, Christian, Roman-Lopes, A.
Rok vydání: 2022
Předmět:
Druh dokumentu: Working Paper
DOI: 10.3847/1538-3881/ac7ce5
Popis: 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] vs $R_{GC}$ gradient of $-0.073 \pm 0.002$ dex/kpc 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.
Comment: 21 pages, 14 Figures, Astronomical Journal Accepted
Databáze: arXiv
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