Chemical Cartography with APOGEE: Two-process Parameters and Residual Abundances for 288,789 Stars from Data Release 17

Abstract

Stellar abundance measurements are subject to systematic errors that induce extra scatter and artificial correlations in elemental abundance patterns. We derive empirical calibration offsets to remove systematic trends with surface gravity $\log (g)$ in 17 elemental abundances of 288,789 evolved stars from the SDSS APOGEE survey. We fit these corrected abundances as the sum of a prompt process tracing core-collapse supernovae and a delayed process tracing Type Ia supernovae, thus recasting each star's measurements into the amplitudes $A_{\text{cc}}$ and $A_{\text{Ia}}$ and the element-by-element residuals from this two-parameter fit. As a first application of this catalog, which is $8\times$ larger than that of previous analyses that used a restricted $\log (g)$ range, we examine the median residual abundances of 14 open clusters, nine globular clusters, and four dwarf satellite galaxies. Relative to field Milky Way disk stars, the open clusters younger than 2 Gyr show $\approx 0.1-0.2$ dex enhancements of the neutron-capture element Ce, and the two clusters younger than 0.5 Gyr also show elevated levels of C+N, Na, S, and Cu. Globular clusters show elevated median abundances of C+N, Na, Al, and Ce, and correlated abundance residuals that follow previously known trends. The four dwarf satellites show similar residual abundance patterns despite their different star formation histories, with $\approx 0.2-0.3$ dex depletions in C+N, Na, and Al and $\approx 0.1$ dex depletions in Ni, V, Mn, and Co. We provide our catalog of corrected APOGEE abundances, two-process amplitudes, and residual abundances, which will be valuable for future studies of abundance patterns in different stellar populations and of additional enrichment processes that affect galactic chemical evolution.

arXiv commentUpdated to ApJ accepted version. 35 pages, 18 figures, 5 tables. Catalog available at https://doi.org/10.5281/zenodo.10659205

References in corpus (92)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Array Programming with NumPy
• Astropy: A Community Python Package for Astronomy
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package
• Gaia Data Release 3: Summary of the content and survey properties
• A grid of MARCS model atmospheres for late-type stars I. Methods and general properties
• The 2.5 m Telescope of the Sloan Digital Sky Survey
• The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
• Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe
• The merger that led to the formation of the Milky Way's inner stellar halo and thick disk
• Exploring the Milky Way stellar disk. A detailed elemental abundance study of 714 F and G dwarf stars in the Solar neighbourhood
• The GALAH Survey: Scientific Motivation
• Multiple populations in globular clusters. Lessons learned from the Milky Way globular clusters
• Na-O Anticorrelation and HB. VII. The chemical composition of first and second-generation stars in 15 globular clusters from GIRAFFE spectra
• Nucleosynthesis Yields of Core-Collapse Supernovae and Hypernovae, and Galactic Chemical Evolution
• ASPCAP: The Apogee Stellar Parameter and Chemical Abundances Pipeline
• Fast rotating massive stars and the origin of the abundance patterns in galactic globular clusters
• Na-O Anticorrelation and HB. VIII. Proton-capture elements and metallicities in 17 globular clusters from UVES spectra
• Properties of stellar generations in Globular Clusters and relations with global parameters
• APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South
• Predictions for self-pollution in globular cluster stars
• The Data Reduction Pipeline for the Apache Point Observatory Galactic Evolution Experiment
• A Spectroscopic Study of the Ancient Milky Way: F- and G-Type Stars in the Third Data Release of the Sloan Digital Sky Survey
• Massive binaries as the source of abundance anomalies in globular clusters
• Abundances, Stellar Parameters, and Spectra From the SDSS-III/APOGEE Survey
• Target Selection for the Apache Point Observatory Galactic Evolution Experiment (APOGEE)
• Explosive yields of massive stars from Z=0 to Z=Zsun
• Chemical Abundances for 855 Giants in the Globular Cluster Omega Centauri (NGC 5139)
• The Apache Point Observatory Galactic Evolution Experiment (APOGEE) Spectrographs
• The Second APOKASC Catalog: The Empirical Approach
• Target Selection for the SDSS-IV APOGEE-2 Survey
• The birth of the Milky Way as uncovered by accurate stellar ages with Gaia
• New ATLAS9 And MARCS Model Atmosphere Grids for the Apache Point Observatory Galactic Evolution Experiment (APOGEE)
• The exotic chemical composition of the Sagittarius dwarf Spheroidal galaxy
• The APOGEE red-clump catalog: Precise distances, velocities, and high-resolution elemental abundances over a large area of the Milky Way's disk
• Deep learning of multi-element abundances from high-resolution spectroscopic data
• Chemical tagging with APOGEE: Discovery of a large population of N-rich stars in the inner Galaxy
• Chemistry of the Sagittarius Dwarf Galaxy: a Top-Light IMF, Outflows and the R-Process
• The SDSS-III APOGEE Spectral Line List for H-band Spectroscopy
• Inflow, Outflow, Yields, and Stellar Population Mixing in Chemical Evolution Models
• Simultaneous calibration of spectro-photometric distances and the Gaia DR2 parallax zero-point offset with deep learning
• Homogeneous Analysis of Globular Clusters from the APOGEE Survey with the BACCHUS Code. II. The Southern Clusters and Overview
• The APOGEE Data Release 16 Spectral Line List
• APOGEE Chemical Abundance Patterns of the Massive Milky Way Satellites
• New H-band Stellar Spectral Libraries for the SDSS-III/APOGEE survey
• Chemical Cartography with APOGEE: Multi-element abundance ratios
• The chemical homogeneity of open clusters
• The Fall of a Giant. Chemical evolution of Enceladus, alias the Gaia Sausage
• Chemical abundances in LMC stellar populations. II. The bar sample
• Chemical Homogeneity in the Hyades
• Enhanced production of barium in low-mass stars: evidence from open clusters
• The Lazy Giants: APOGEE Abundances Reveal Low Star Formation Efficiencies in the Magellanic Clouds
• The GALAH survey: tracing the Galactic disk with Open Clusters
• Final Targeting Strategy for the SDSS-IV APOGEE-2S Survey
• Final Targeting Strategy for the SDSS-IV APOGEE-2N Survey
• The Hyades open cluster is chemically inhomogeneous
• APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy
• Chemical tagging in the SDSS-III/APOGEE survey: new identifications of halo stars with globular cluster origins
• New insights on Ba over-abundance in open clusters. Evidence for the intermediate neutron-capture process at play?
• In the Galactic disk, stellar [Fe/H] and age predict orbits and precise [X/Fe]
• The Gaia-ESO Survey: Sodium and aluminium abundances in giants and dwarfs - Implications for stellar and Galactic chemical evolution
• Constraining Metallicity-dependent Mixing and Extra Mixing using [C/N] in Alpha-Rich Field Giants
• The Open Cluster Chemical Abundances and Mapping Survey: VI. Galactic Chemical Gradient Analysis from APOGEE DR17
• Evidence for Sub-Chandrasekhar Type Ia Supernovae from Stellar Abundances in Dwarf Galaxies
• Ages and heavy element abundances from very metal-poor stars in the Sagittarius dwarf galaxy
• NLTE for APOGEE: Simultaneous Multi-Element NLTE Radiative Transfer
• Chemodynamics of newly identified giants with globular cluster like abundance patterns in the bulge, disk, and halo of the Milky Way
• How Many Elements Matter?
• The Similarity of Abundance Ratio Trends and Nucleosynthetic Patterns in the Milky Way Disk and Bulge
• Manganese Indicates a Transition from Sub- to Near-Chandrasekhar Type Ia Supernovae in Dwarf Galaxies
• BACCHUS Analysis of Weak Lines in APOGEE Spectra (BAWLAS)
• Stellar Abundance Maps of the Milky Way Disk
• An aluminium tool for multiple stellar generations in the globular clusters 47 Tuc and M 4
• Chemical Cartography with APOGEE: Mapping Disk Populations with a Two-Process Model and Residual Abundances
• Abundance ratios in GALAH DR2 and their implications for nucleosynthesis
• The homogeneity of the star forming environment of the Milky Way disk over time
• Evidence for a Sub-Chandrasekhar Mass Type~Ia Supernova in the Ursa Minor Dwarf Galaxy
• Differential abundances of open clusters and their tidal tails: chemical tagging and chemical homogeneity
• The Gaia-ESO Survey: A new approach to chemically characterising young open clusters II. Abundances of the neutron-capture elements Cu, Sr, Y, Zr, Ba, La, and Ce
• Open Cluster Chemical Homogeneity Throughout the Milky Way
• The (im)possibility of strong chemical tagging
• Homogeneous Analysis of Globular Clusters from the APOGEE Survey with the BACCHUS Code $-$ III. $\omega$ Cen
• H-band discovery of additional Second-Generation stars in the Galactic Bulge Globular Cluster NGC 6522 as observed by APOGEE and Gaia
• Exploring the s-process history in the Galactic disk: Cerium abundances and gradients in Open Clusters from the OCCAM/APOGEE sample
• Korg: a modern 1D LTE spectral synthesis package
• Orbital Torus Imaging: Using Element Abundances to Map Orbits and Mass in the Milky Way
• Discovery of a large population of Nitrogen-Enhanced stars in the Magellanic Clouds
• Residual Abundances in GALAH DR3: Implications for Nucleosynthesis and Identification of Unique Stellar Populations
• Time evolution of Ce as traced by APOGEE using giant stars observed with the Kepler, TESS and K2 missions
• The chemical enrichment of the Milky Way disk evaluated using conditional abundances
• Chemical abundances of the young inner-disk open cluster NGC 6705 observed by APOGEE: sodium-rich and not $\alpha$-enhanced