Origin of metals in old Milky Way halo stars based on GALAH and Gaia

Abstract

Stellar and supernova nucleosynthesis in the first few billion years of the cosmic history have set the scene for early structure formation in the Universe, while little is known about their nature. Making use of stellar physical parameters measured by GALAH Data Release 3 with accurate astrometry from the Gaia EDR3, we have selected $\sim 100$ old main-sequence turn-off stars (ages $\gtrsim 12$ Gyrs) with kinematics compatible with the Milky Way stellar halo population in the Solar neighborhood. Detailed homogeneous elemental abundance estimates by GALAH DR3 are compared with supernova yield models of Pop~III (zero-metal) core-collapse supernovae (CCSNe), normal (non-zero-metal) CCSNe, and Type Ia supernovae (SN Ia) to examine which of the individual yields or their combinations best reproduce the observed elemental abundance patterns for each of the old halo stars ("OHS"). We find that the observed abundances in the OHS with [Fe/H]$>-1.5$ are best explained by contributions from both CCSNe and SN~Ia, where the fraction of SN~Ia among all the metal-enriching SNe is up to 10-20 % for stars with high [Mg/Fe] ratios and up to 20-27 % for stars with low [Mg/Fe] ratios, depending on the assumption about the relative fraction of near-Chandrasekhar-mass SNe Ia progenitors. The results suggest that, in the progenitor systems of the OHS with [Fe/H]$>-1.5$, $\sim$ 50-60% of Fe mass originated from normal CCSNe at the earliest phases of the Milky Way formation. These results provide an insight into the birth environments of the oldest stars in the Galactic halo.

arXiv comment21 pages, 16 Figures, accepted for publication in MNRAS

References in corpus (174)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Astropy: A Community Python Package for Astronomy
• The NumPy array: a structure for efficient numerical computation
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• PARSEC: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
• The Transiting Exoplanet Survey Satellite
• On the normalisation of the cosmic star formation history
• The Dartmouth Stellar Evolution Database
• The K2 Mission: Characterization and Early results
• The Nucleosynthetic Signature of Population III
• galpy: A Python Library for Galactic Dynamics
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• The merger that led to the formation of the Milky Way's inner stellar halo and thick disk
• Type Ia Supernova Explosion Models
• Explosion Mechanisms of Core-Collapse Supernovae
• Gaia Early Data Release 3: The astrometric solution
• The New Galaxy: Signatures of its Formation
• The Formation of the First Stars. I. The Primordial Star Forming Cloud
• Tracing Galaxy Formation with Stellar Halos I: Methods
• Co-formation of the Galactic disc and the stellar halo
• A Universal Stellar Initial Mass Function? A Critical Look at Variations
• The First Stars
• Observational clues to the progenitors of Type-Ia supernovae
• Neutron capture in low mass Asymptotic Giant Branch stars: cross sections and abundance signatures
• Galactic chemical evolution: Carbon through Zinc
• Solar Chemical Abundances Determined with a CO5BOLD 3D Model Atmosphere
• The GALAH Survey: Scientific Motivation
• Origin of the Heaviest Elements: the Rapid Neutron-Capture Process
• Nucleosynthesis and Evolution of Massive Metal-Free Stars
• Kinematics of Metal-Poor Stars in the Galaxy. III. Formation of the Stellar Halo and Thick Disk as Revealed from a Large Sample of Non-Kinematically Selected Stars
• Extragalactic Science, Cosmology and Galactic Archaeology with the Subaru Prime Focus Spectrograph (PFS)
• Two Stellar Components in the Halo of the Milky Way
• The GALAH+ Survey: Third Data Release
• Presupernova evolution and explosive nucleosynthesis of rotating massive stars in the metallicity range -3 <=[Fe/H]<= 0
• The Ages of Stars
• Galactic stellar haloes in the CDM model
• Two distinct halo populations in the solar neighborhood. Evidence from stellar abundance ratios and kinematics
• One Hundred First Stars : Protostellar Evolution and the Final Masses
• Nucleosynthesis of Zinc and Iron-Peak Elements in Pop III Type II Supernovae : Comparison with abundances of Very Metal-Poor Halo Stars
• Near-Field Cosmology with Metal-Poor Stars
• The age structure of stellar populations in the solar vicinity. Clues of a two-phase formation history of the Milky Way disk
• Asteroseismology of Solar-Type and Red-Giant Stars
• The First Galaxies
• Thermal and Fragmentation Properties of Star-forming Clouds in Low-metallicity Environments
• Formation of Primordial Stars in a LCDM Universe
• Simulations on a Moving Mesh: The Clustered Formation of Population III Protostars
• Energy Input and Mass Redistribution by Supernovae in the Interstellar Medium
• The Evolution of Isotope Ratios in the Milky Way Galaxy
• The early star generations: the dominant effect of rotation on the CNO yields
• Streams, substructures and the early history of the Milky Way
• Protostellar Feedback Halts the Growth of the First Stars in the Universe
• Evidence from the H3 Survey that the Stellar Halo is Entirely Comprised of Substructure
• In disguise or out of reach: first clues about in-situ and accreted stars in the stellar halo of the Milky Way from Gaia DR2
• Chemical evolution with rotating massive star yields: I. The solar neighbourhood and the s-process elements
• First Stars VIII -- Enrichment of the neutron-capture elements in the early Galaxy
• Primordial Star Formation under the Influence of Far Ultraviolet Radiation: 1540 Cosmological Halos and the Stellar Mass Distribution
• The Mass Spectrum of the First Stars
• 4MOST: Project overview and information for the First Call for Proposals
• Supernova Nucleosynthesis in Population III 13 -- 50 $M_{\odot }$ Stars and Abundance Patterns of Extremely Metal-Poor Stars
• The first stars: formation of binaries and small multiple systems
• The Biggest Splash
• Gravitational fragmentation in turbulent primordial gas and the initial mass function of Population III stars
• The delay-time distribution of type-Ia supernovae from Sloan II
• The origin of accreted stellar halo populations in the Milky Way using APOGEE, $\text{Gaia}$, and the EAGLE simulations
• Low-Metallicity Inhibition of Type Ia Supernovae and Galactic and Cosmic Chemical Evolution
• The birth of the Milky Way as uncovered by accurate stellar ages with Gaia
• Red giant masses and ages derived from carbon and nitrogen abundances
• Delay Time Distribution Measurement of Type Ia Supernovae by the Subaru/XMM-Newton Deep Survey and Implications for the Progenitor
• Fallback and Black Hole Production in Massive Stars
• Very low metallicity massive star models: Pre-SN evolution and primary nitrogen production
• The First Galaxies: Chemical Enrichment, Mixing, and Star Formation
• $s$-process production in rotating massive stars at solar and low metallicities
• Population III star formation in a Lambda CDM universe, I: The effect of formation redshift and environment on protostellar accretion rate
• The First Stars: Mass Growth Under Protostellar Feedback
• Effects of rotation on the evolution of primordial stars
• Evolution of massive population III stars with rotation and magnetic fields
• The Milky Way has no in-situ halo other than the heated thick disc. Composition of the stellar halo and age-dating the last significant merger with Gaia DR2 and APOGEE
• The Galaxy and its stellar halo: insights on their formation from a hybrid cosmological approach
• Using chemical tagging to redefine the interface of the Galactic disk and halo
• Chemodynamical history of the Galactic Bulge
• Gaia reveals a metal-rich in-situ component of the local stellar halo
• The s process in massive stars at low metallicity. Effect of primary N14 from fast rotating stars
• The transition from population III to population II-I star formation
• The Role of Type Ia Supernovae in Chemical Evolution I: Lifetime of Type Ia Supernovae and Galactic Supernova Rates
• Complete element abundances of nine stars in the r-process galaxy Reticulum II
• Pre-galactic metal enrichment - The chemical signatures of the first stars
• Chemical abundances of the Milky Way thick disk and stellar halo II.: sodium, iron-peak and neutron-capture elements
• Evolution of 3-9 Mo Stars for Z=0.001 - 0.03 and Metallicity Effects on Type Ia Supernovae
• A uniform metal distribution in the intergalactic medium of the Perseus cluster of galaxies
• Where are the most ancient stars in the Milky Way?
• Three Modes of Metal-Enriched Star Formation in the Early Universe
• Disentangling the Galactic Halo with APOGEE: I. Chemical and Kinematical Investigation of Distinct Metal-Poor Populations
• Chemical evolution with rotating massive star yields II. A new assessment of the solar s- and r- process components
• Isochrone ages for ~3 million stars with the second Gaia data release
• The First Population II Stars Formed in Externally Enriched Mini-halos
• Supernova Explosions in the Early Universe: Evolution of Radiative Remnants and the Halo Destruction Efficiency
• Explosive Nucleosynthesis in Near-Chandrasekhar Mass White Dwarf Models for Type Ia Supernovae: Dependence on Model Parameters
• Solar abundance of manganese: a case for the existence of near Chandrasekhar-mass Type Ia supernova progenitors
• The Initial mass function of the first stars inferred from extremely metal-poor stars
• The TESS-HERMES survey Data Release 1: high-resolution spectroscopy of the TESS southern continuous viewing zone
• Constraining supernova models using the hot gas in clusters of galaxies
• Stellar haloes of simulated Milky Way-like galaxies: Chemical and kinematic properties
• Simulating cosmic metal enrichment by the first galaxies
• New Type Ia supernova Yields and the Manganese and Nickel Problems in the Milky Way and Dwarf Spheroidal Galaxies
• Phase-Space Distributions of Chemical Abundances in Milky Way-type Galaxy Halos
• Are C-rich ultra iron poor stars also He-rich?
• The Birth of a Massive First-Star Binary
• Chronologically dating the early assembly of the Milky Way
• Sausage & Mash: The dual origin of the Galactic thick disc and halo from the gas-rich Gaia-Enceladus-Sausage merger
• Two distinct halo populations in the solar neighborhood. III. Evidence from stellar ages and orbital parameters
• Descendants of the first stars: the distinct chemical signature of second generation stars
• The Caterpillar Project: A Large Suite of Milky Way Sized Halos
• Aspherical Properties of Hydrodynamics and Nucleosynthesis in Jet-induced Supernovae
• The Nucleosynthetic Imprint of 15-40 Solar Mass Primordial Supernovae on Metal-Poor Stars
• Timing the Early Assembly of the Milky Way with the H3 Survey
• SDSS-V: Pioneering Panoptic Spectroscopy
• Presupernova evolution and explosive nucleosynthesis of zero metal massive stars
• Chemical Abundances of the Milky Way Thick Disk and Stellar Halo I.: Implications of [alpha/Fe] for Star Formation Histories in Their Progenitors
• Carbon-enhanced metal-poor stars in dwarf galaxies
• The Dual Origin of Stellar Halos II: Chemical Abundances as Tracers of Formation History
• Confined Population III Enrichment and the Prospects for Prompt Second-Generation Star Formation
• Mixing in Zero and Solar Metallicity Supernovae
• Decoding the stellar fossils of the dusty Milky Way progenitors
• Carbon-Enhanced Metal-Poor Stars: Relics from the Dark Ages
• A uniform metallicity in the outskirts of massive, nearby galaxy clusters
• XMM observation of M~87 II. Abundance structure of the interstellar and intergalactic medium
• Non standard s-process in massive rotating stars. Yields of $10-150$ $M_{\odot }$ models at $Z=10^{-3}$
• Recovery from population III supernova explosions and the onset of second generation star formation
• The oldest and most metal poor stars in the APOSTLE Local Group simulations
• Elevated r-process enrichment in Gaia Sausage and Sequoia
• Merge or survive: Number of Population III stars per minihalo
• Remnants and ejecta of thermonuclear electron-capture supernovae: Constraining oxygen-neon deflagrations in high-density white dwarfs
• A systematic study of carbon-oxygen white dwarf mergers: mass combinations for Type Ia supernovae
• Fundamental relations for the velocity dispersion of stars in the Milky Way
• Explosive Nucleosynthesis in Sub-Chandrasekhar Mass White Dwarf Models for Type Ia Supernovae: Dependence on Model Parameters
• The First Stars: A Low-Mass Formation Mode
• A Uniform Contribution of Core-Collapse and Type Ia Supernovae to the Chemical Enrichment Pattern in the Outskirts of the Virgo Cluster
• Evidence for an aspherical Population III supernova explosion inferred from the hyper metal-poor star HE1327-2326
• The Evolution of the Intracluster Medium Metallicity in Sunyaev-Zel'dovich-Selected Galaxy Clusters at 0 < z < 1.5
• Single Degenerate Models for Type Ia Supernovae Progenitor's Evolution and Nucleosythesis Yields
• $R$-process enhancements of Gaia-Enceladus in GALAH DR3
• Mining the Galactic Halo for Very Metal-Poor Stars
• Metal-poor star formation triggered by the feedback effects from Pop III stars
• Stellar Yields of Rotating First Stars. I. Yields of Weak Supernovae and Abundances of Carbon-enhanced Hyper Metal Poor Stars
• The Metallicity of the Intracluster Medium Over Cosmic Time: Further Evidence for Early Enrichment
• Constraints on the Chemical Enrichment History of the Perseus Cluster of Galaxies from High-Resolution X-ray Spectroscopy
• Evidence for Sub-Chandrasekhar Type Ia Supernovae from Stellar Abundances in Dwarf Galaxies
• Heated Disc Stars in the Stellar Halo
• Origin of central abundances in the hot intra-cluster medium - II. Chemical enrichment and supernova yield models
• Carbon-Enhanced Metal-Poor Stars, the Cosmic Microwave Background, and the Stellar IMF in the Early Universe
• The Delay Time Distribution of Type Ia Supernovae and the Single Degenerate Model
• Masses and Ages for 230,000 LAMOST Giants, via Their Carbon and Nitrogen Abundances
• Disentangling the Galactic Halo with APOGEE: II. Chemical and Star Formation Histories for the Two Distinct Populations
• Probing the existence of very massive first stars
• Evolution of ONeMg Core in Super-AGB Stars towards Electron-Capture Supernovae: Effects of Updated Electron-Capture Rate
• Ages and Masses of 0.64 million Red Giant Branch stars from the LAMOST Galactic Spectroscopic Survey
• The critical mass ratio of double white dwarf binaries for violent merger-induced Type Ia supernova explosions
• Electron Capture Supernovae of Super-AGB Stars: Sensitivity on Input Physics
• The Splash without a merger
• MADE: A spectroscopic Mass, Age, and Distance Estimator for red giant stars with Bayesian machine learning
• Supernova dust formation and the grain growth in the early universe: The critical metallicity for low-mass star formation
• A Minimum Dilution Scenario for Supernovae and Consequences for Extremely Metal-Poor Stars
• Fingerprint of the first stars: multi-enriched extremely metal-poor stars in the TOPoS survey
• The Chemical Evolution of Galaxy Clusters: Dissecting the Iron Mass Budget of the Intracluster Medium
• Implications of inhomogeneous metal mixing for stellar archaeology
• The evolution of the UV-to-mm extragalactic background light: evidence for a top-heavy initial mass function?
• Formation of carbon-enhanced metal-poor stars as a consequence of inhomogeneous metal mixing
• Electron-capture Rates in ${}^{20}$Ne for a Forbidden Transition to the Ground State of ${}^{20}$F Relevant to Final Evolution of High-density O-Ne-Mg Cores
• The role of the H${}_2$ adiabatic index in the formation of the first stars
• Deep XMM-Newton Observations of the Most Distant SPT-SZ Galaxy Cluster
• Sc and neutron-capture abundances in Galactic low- and high-alpha field halo stars
• Inferring the velocity of early massive stars from the abundances of extremely metal-poor stars
• A strong neutron burst in jet-like supernovae of spinstars
• The GALAH Survey: Dependence of elemental abundances on age and metallicity for stars in the Galactic disc

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• The GALAH Survey: Chemical tagging and chrono-chemodynamics of accreted halo stars with GALAH+ DR3 and $Gaia$ eDR3
• Public Release of A-SLOTH: Ancient Stars and Local Observables by Tracing Halos
• The homogeneity of the star forming environment of the Milky Way disk over time
• Machine learning detects multiplicity of the first stars in stellar archaeology data
• The Cetus-Palca stream: A disrupted small dwarf galaxy. A prequel to the science possible with WEAVE with precise spectro-photometric distances
• Potential signature of Population III pair-instability supernova ejecta in the BLR gas of the most distant quasar at z = 7.54
• Empirical Constraints on Core Collapse Supernova Yields using Very Metal Poor Damped Lyman Alpha Absorbers
• Primordial Black Hole Triggered Type Ia Supernovae I: Impact on Explosion Dynamics and Light Curves
• Stellar substructures in the Galactic disc and halo: Properties, origins, and evolution
• Primordial Black Hole Triggered Type Ia Supernovae II: Comparison with Supernova Remnants and Galactic Chemical Evolution
• Unravelling the role of merger histories in the population of In situ stars: linking IllustrisTNG cosmological simulation to H3 survey
• Detailed Abundance Determination of Metal-Poor Stars with X-Shooter I. Unusual Chemistry in Halo Stars
• Revisiting the Perseus Cluster III: Role of Aspherical Explosions on its Chemical Composition and Extension to Metal-Poor Stars and Galaxies