Origin of neutron capture elements with the Gaia-ESO survey: the evolution of s- and r-process elements across the Milky Way

Abstract

We study the abundance patterns and the radial gradients of s-process elements (Y, Zr, Ba, La and Ce), r-process elements (Eu) and mixed-process elements (Mo, Nd and Pr) in the Galactic thin disc by means of a detailed two-infall chemical evolution model for the Milky Way with state-of-the-art nucleosynthesis prescriptions. We consider r-process nucleosynthesis from merging neutron stars (MNS), magneto-rotational supernovae (MR-SNe) and s-process synthesis from low- and intermediate- mass stars (LIMS) and rotating massive stars. The predictions of our model are compared with data from the sixth data release of the Gaia-ESO survey, from which we consider 62 open clusters with age > 0.1 Gyr and 1300 Milky Way disc field stars. We conclude that: i) the [Eu/Fe] vs. [Fe/H] is reproduced by both a prompt and a delayed source, but the quick source completely dominates the Eu production; ii) rotation in massive stars contribute substantially to the s-process elements of the first peak, but MNS and MR-SNe are necessary in order to reproduce the observations; iii) due to the adopted yields, our model overpredicts Pr and underpredicts Nd, while the [Mo/Fe] vs. [Fe/H] is nicely reproduced. For the radial gradients, we conclude that: i) our predicted slope of the [Fe/H] gradient is in agreement with the one observed in open clusters by Gaia-ESO and other high-resolution spectroscopic surveys. ii) The predicted slope of the [Eu/H] radial gradient is steeper than the observed one, independently on how quick the production of Eu is. We discuss the possible causes of this discrepancy in terms of both different Galaxy formation scenarios and stellar radial migration effects. iii) For all the elements belonging to the second s-process peak (Ba, La, Ce) as well as for Pr, we predict a plateau at low Galactocentric distances, which is probably due to the enhanced enrichment from LIMS in the inner regions.

arXiv comment17 pages, 11 figures. Published on MNRAS

References in corpus (80)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• The Global Schmidt Law in Star Forming Galaxies
• The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
• Nucleosynthesis in Chandrasekhar Mass Models for Type Ia Supernovae and Constraints on Progenitor Systems and Burning-Front Propagation
• Spectroscopic identification of r-process nucleosynthesis in a double neutron star merger
• The Chemical Evolution of the Galaxy: the two-infall model
• The Progenitor Stars of Gamma-Ray Bursts
• Galactic chemical evolution: Carbon through Zinc
• The GALAH Survey: Scientific Motivation
• Updated stellar yields from Asymptotic Giant Branch models
• Origin of the Heaviest Elements: the Rapid Neutron-Capture Process
• Abundance Gradients and the Formation of the Milky Way
• Galactic Evolution of Sr, Y, Zr: A Multiplicity of Nucleosynthetic Processes
• The GALAH+ Survey: Third Data Release
• Presupernova evolution and explosive nucleosynthesis of rotating massive stars in the metallicity range -3 <=[Fe/H]<= 0
• Magnetorotationally driven Supernovae as the origin of early galaxy $r$-process elements?
• Painting a portrait of the Galactic disc with its stellar clusters
• Identification of strontium in the merger of two neutron stars
• A direct dynamical measurement of the Milky Way's disk surface density profile, disk scale length, and dark matter profile at 4 kpc < R < 9 kpc
• The Local Dark Matter Density
• Evolution, nucleosynthesis and yields of low mass AGB stars
• Evolution, nucleosynthesis and yields of low mass AGB stars at different metallicities (II): the FRUITY database
• Quantifying the uncertainties of chemical evolution studies. II. Stellar yields
• Neutron Star Mergers and Nucleosynthesis of Heavy Elements
• Chemical evolution with rotating massive star yields: I. The solar neighbourhood and the s-process elements
• Evolution, nucleosynthesis and yields of AGB stars at different metallicities (III): intermediate mass models, revised low mass models and the ph-FRUITY interface
• The r-process nucleosynthesis in the various jet-like explosions of magnetorotational core-collapse supernovae
• Galactic Chemical Evolution and solar s-process abundances: dependence on the 13C-pocket structure
• On the typical timescale for the chemical enrichment from SNeIa in Galaxies
• $s$-process production in rotating massive stars at solar and low metallicities
• The Distribution of the Elements in the Galactic Disk III. A Reconsideration of Cepheids from l = 30 to 250 Degrees
• Estimating stellar birth radii and the time evolution of the Milky Way's ISM metallicity gradient
• Galactic Archaeology with asteroseismic ages: evidence for delayed gas infall in the formation of the Milky Way disc
• Galactic evolution of rapid neutron capture process abundances: the inhomogeneous approach
• The intermediate r-process in core-collapse supernovae driven by the magneto-rotational instability
• The Gaia-ESO Public Spectroscopic Survey: Implementation, data products, open cluster survey, science, and legacy
• Neutrino-driven wind simulations and nucleosynthesis of heavy elements
• Evolution and nucleosynthesis of asymptotic giant branch stellar models of low metallicity
• The Open Cluster Chemical Abundances and Mapping Survey: IV. Abundances for 128 Open Clusters using SDSS/APOGEE DR16
• The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products
• The GALAH survey: tracing the Galactic disk with Open Clusters
• The evolution of CNO isotopes: the impact of massive stellar rotators
• APOGEE DR16: a multi-zone chemical evolution model for the Galactic disc based on MCMC methods
• Explaining the Ba, Y, Sr, and Eu abundance scatter in metal-poor halo stars: constraints to the r-process
• Reaction rates for the s-process neutron source 22Ne+α
• Open clusters in APOGEE and GALAH: Combining Gaia and ground-based spectroscopic surveys
• The Gaia-ESO survey: mapping the shape and evolution of the radial abundance gradients with open clusters
• Galactic Archaeology with asteroseismic ages. II. Confirmation of a delayed gas infall using Bayesian analysis based on MCMC methods
• Magnetorotational supernovae: A nucleosynthetic analysis of sophisticated 3D models
• On the alpha-element gradients of the Galactic thin disk using Cepheids
• Production of very light elements and strontium in the early ejecta of neutron star mergers
• A new delay time distribution for merging neutron stars tested against Galactic and cosmic data
• The Gaia-ESO Survey: a new approach to chemically characterising young open clusters
• Chemical evolution of the Milky Way: constraints on the formation of the thick and thin discs
• Nucleosynthesis in magneto-rotational supernovae
• Mapping the Galactic Metallicity Gradient with Open Clusters: The State-of-the-Art and Future Challenges
• Abundance gradients along the Galactic disc from chemical evolution models
• The effect of stellar migration on Galactic chemical evolution: a heuristic approach
• Effects of Galactic fountains and delayed mixing in the chemical evolution of the Milky Way
• BACCHUS Analysis of Weak Lines in APOGEE Spectra (BAWLAS)
• Horizons: Nuclear Astrophysics in the 2020s and Beyond
• The effects of different Type Ia SN yields on Milky Way chemical evolution
• The Gaia-ESO Survey: Age-chemical-clock relations spatially resolved in the Galactic disc
• Beyond the two-infall model I. Indications for a recent gas infall with Gaia DR3 chemical abundances
• Nuclear physics uncertainties in neutrino-driven, neutron-rich supernova ejecta
• Production of Mo and Ru isotopes in neutrino-driven winds: implications for solar abundances and presolar grains
• 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
• Stellar abundances and presolar grains trace the nucleosynthetic origin of molybdenum and ruthenium
• The mass surface density in the local disk and the chemical evolution of the Galaxy
• The Gaia-ESO Survey: the selection function of the Milky Way field stars
• Radial Migration from Metallicity Gradient of Open Clusters and Outliers
• Evolution of neutron capture elements in dwarf galaxies
• The origin of abundance gradients in the Milky Way: the predictions of different models
• Migration in the shearing sheet and estimates for young open cluster migration
• Predicted rates of merging neutron stars in galaxies
• The cerium content of the Milky Way as revealed by Gaia DR3 GSP-Spec abundances
• Neutron stars mergers in a stochastic chemical evolution model: impact of time delay distributions
• Enrichment of the Galactic disc with neutron-capture elements: Mo and Ru
• The Gaia-ESO survey: placing constraints on the origin of r-process elements
• On the delay times of merging double neutron stars

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• Mapping radial abundance gradients with Gaia-ESO open clusters: Evidence of recent gas accretion in the Milky Way disk
• High N/O ratio at high redshift as a result of a strong burst of star formation and differential galactic winds
• 2D chemical evolution models II. Effects of multiple spiral arm patterns on O, Eu, Fe and Ba abundance gradients
• Cepheid Metallicity in the Leavitt Law (C- MetaLL) survey: VI: Radial abundance gradients of 29 chemical species in the Milky Way Disk
• Explaining the ${}^{12}\text{C}{/}^{13}\text{C}$ ratio in the Galactic halo: the contribution from shell mergers in primordial massive stars
• Modelling chemical clocks -- Theoretical evidences of the space and time evolution of [s/alpha] in the Galactic disc with Gaia-ESO survey
• Neutrino-driven Core-collapse Supernova Yields in Galactic Chemical Evolution
• Europium, we have a problem. Modelling r-process enrichment across Local Group galaxies
• Neutron-Capture Element Signatures in Globular Clusters: Insights from the Gaia-ESO Survey
• Stellar Population Astrophysics (SPA) with the TNG: NLTE atmospheric parameters and abundances of giant stars in 33 Open Clusters
• Shaping Galactic Habitability: the impact of stellar migration and gas giants
• Yields from massive stars in binaries. Chemical evolution of the Milky Way disk
• Chemical Evolution in Nuclear Stellar Discs
• The R-Process Alliance: Exploring the cosmic scatter among ten r-process sites with stellar abundances
• A chemical close-up of the main body of the Sagittarius dwarf galaxy
• The chemical DNA of the Magellanic Clouds V. R-process dominates neutron capture elements production in the oldest SMC stars
• The metal-poorest tail of the Galactic halo: hypothesis on its origin from precise spectral analysis
• Th/Eu abundance ratio of red giants in the Kepler Field
• A Census of Sun's Ancestors and their Contributions to the Solar System Chemical Composition
• The chemical DNA of the Magellanic Clouds VI. Origin and evolution of neutron-capture elements in the SMC