The GALAH+ Survey: Third Data Release

Abstract

The ensemble of chemical element abundance measurements for stars, along with precision distances and orbit properties, provides high-dimensional data to study the evolution of the Milky Way. With this third data release of the Galactic Archaeology with HERMES (GALAH) survey, we publish 678 423 spectra for 588 571 mostly nearby stars (81.2% of stars are within <2 kpc), observed with the HERMES spectrograph at the Anglo-Australian Telescope. This release (hereafter GALAH+ DR3) includes all observations from GALAH Phase 1 (bright, main, and faint survey, 70%), K2-HERMES (17%), TESS-HERMES (5%), and a subset of ancillary observations (8%) including the bulge and >75 stellar clusters. We derive stellar parameters $T_{\text{eff}}$, $\log g$, [Fe/H], $v_{\text{mic}}$, $v_{\text{broad}}$ & $v_{\text{rad}}$ using our modified version of the spectrum synthesis code Spectroscopy Made Easy (SME) and 1D MARCS model atmospheres. We break spectroscopic degeneracies in our spectrum analysis with astrometry from $Gaia$ DR2 and photometry from 2MASS. We report abundance ratios [X/Fe] for 30 different elements (11 of which are based on non-LTE computations) covering five nucleosynthetic pathways. We describe validations for accuracy and precision, flagging of peculiar stars/measurements and recommendations for using our results. Our catalogue comprises 65% dwarfs, 34% giants, and 1% other/unclassified stars. Based on unflagged chemical composition and age, we find 62% young low-$\alpha$, 9% young high-$\alpha$, 27% old high-$\alpha$, and 2% stars with $[Fe/H]\le -1$. Based on kinematics, 4% are halo stars. Several Value-Added-Catalogues, including stellar ages and dynamics, updated after $Gaia$ eDR3, accompany this release and allow chrono-chemodynamic analyses, as we showcase.

arXiv comment48 pages, 27 figures, 5 pages appendix, accepted for publication in MNRAS, comments welcome, GALAH+ DR3 can be found at https://docs.datacentral.org.au/galah/dr3/overview/, Catalogs can be downloaded from https://cloud.datacentral.org.au/teamdata/GALAH/public/GALAH_DR3/

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• Estimating Stellar Parameters from LAMOST Low-resolution Spectra
• The GALAH survey: Chemical homogeneity of the Orion complex
• New Generation Stellar Spectral Libraries in the Optical and Near-Infrared I: The Recalibrated UVES-POP Library for Stellar Population Synthesis
• Most nearby young star clusters formed in three massive complexes
• The Gaia-ESO Survey: Lithium measurements and new curves of growth
• Chronology of the chemical enrichment of the old Galactic stellar populations
• Evidence for r-process delay in very metal-poor stars
• The GALAH Survey: Accreted stars also inhabit the Spite Plateau
• Stellar Parameters and Chemical Abundances Estimated from LAMOST-II DR8 MRS based on Cycle-StarNet
• Isochrone fitting to the open cluster M67 in the era of Gaia and improved model physics
• The cerium content of the Milky Way as revealed by Gaia DR3 GSP-Spec abundances
• The dawn of a new era for dustless HdC stars with GAIA eDR3
• Symbiotic stars in the era of modern ground- and space-based surveys
• PISN-explorer: hunting the descendants of very massive first stars
• A search for compact object companions to high mass function single-lined spectroscopic binaries in Gaia DR3
• Internal rotation and buoyancy travel time of 60 gamma Doradus stars from uninterrupted TESS light curves spanning 352 days
• A 3D View of Orion: I. Barnard's Loop
• Many Roads Lead to Lithium: Formation Pathways For Lithium-Rich Red Giants
• The GALAH survey: Tracing the Milky Way's formation and evolution through RR Lyrae stars
• Titanium abundances in late-type stars I. 1D non-local thermodynamic equilibrium modelling in benchmark dwarfs and giants
• Photometric metallicity for 694233 Galactic giant stars from Gaia DR3 synthetic Stromgren photometry. Metallicity distribution functions of halo sub-structures
• Origin of metals in old Milky Way halo stars based on GALAH and Gaia
• oMEGACat II -- Photometry and proper motions for 1.4 million stars in Omega Centauri and its rotation in the plane of the sky
• Four-hundred Very Metal-poor Stars Studied with LAMOST and Subaru. III. Dynamically Tagged Groups and Chemodynamical Properties
• Mass Matters: No Evidence for Ubiquitous Lithium Production in Low-Mass Clump Giants
• The Lithium Abundances from the Large Sky Area Multi-object Fiber Spectroscopic Telescope Medium-resolution Survey. I. The Method
• The role of radial migration in open cluster and field star populations with Gaia dr3
• A new resonance-like feature in the outer disc of the Milky Way
• Chemical Properties of the Local Disk and Halo. II. Abundances of 3745 M dwarfs and Subdwarfs from Improved Model Fitting of Low-Resolution Spectra
• Evidence of extra-mixing in field giants as traced by lithium and carbon isotope ratio
• Spinning up the Surface: Evidence for Planetary Engulfment or Unexpected Angular Momentum Transport?
• TOI-1075 b: A Dense, Massive, Ultra-Short Period Hot Super-Earth Straddling the Radius Gap
• Substructures, Resonances and debris streams
• NGC 1261: an $r$-process enhanced globular cluster from the Gaia-Enceladus event
• OCCASO IV. Radial Velocities and Open Cluster Kinematics
• Analytic solution of Chemical Evolution Models with Type Ia SNe
• M giants with IGRINS I. Stellar parameters and $\alpha$-abundance trends of the solar neighborhood population
• Disconnecting the Dots: Re-Examining the Nature of Stellar "Strings" in the Milky Way
• Age distribution of exoplanet host stars: Chemical and Kinematics age proxies from GAIA DR3
• A Mini-Neptune Orbiting the Metal-poor K Dwarf BD+29 2654
• 60 candidate high-velocity stars originating from the Sagittarius dwarf spheroidal galaxy in Gaia EDR3
• Disc dichotomy signature in the vertical distribution of [Mg/Fe] and the delayed gas infall scenario
• The physical properties of Cluster Chains
• Characterizing Observed Extra Mixing Trends in Red Giants using the Reduced Density Ratio from Thermohaline Models
• Unveiling the past evolution of the progenitor of the Helmi streams
• One-third of Sun-like stars are born with misaligned planet-forming disks
• Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3
• The Gaia-ESO Survey: Preparing the ground for 4MOST & WEAVE galactic surveys. Chemical evolution of lithium with machine learning
• The Galactic Interstellar Object Population: A Framework for Prediction and Inference
• On the metal-poor edge of the Milky Way "thin disc"
• TOI-4562 b: A highly eccentric temperate Jupiter analog orbiting a young field star
• Trading oxygen for iron I: the [O/Fe] -- specific star formation rate relation of galaxies
• Gaia's brightest very metal-poor (VMP) stars. Metallicity catalogue of a thousand VMP stars from Gaia's radial velocity spectrometer spectra
• Titans metal-poor reference stars II. Red giants and CEMP stars
• Investigating Gaia EDR3 parallax systematics using asteroseismology of Cool Giant Stars observed by Kepler, K2, and TESS II. Deciphering Gaia parallax systematics using red clump stars
• The Gaia-ESO survey: placing constraints on the origin of r-process elements
• Spectroscopic Orbits of Subsystems in Multiple Stars. X (Summary)
• A Study of Stellar Spins in 15 Open Clusters
• The Symbiotic X-ray Binary IGR J16194-2810: A Window on the Future Evolution of Wide Neutron Star Binaries From Gaia
• Exoplanets Across Galactic Stellar Populations with PLATO: Estimating Exoplanet Yields Around FGK Stars for the Thin Disk, Thick Disk and Stellar Halo
• Exploring the chemodynamics of metal-poor stellar populations
• A Unified Exploration of the Chronology of the Galaxy
• Exploring the stellar rotation of early-type stars in the LAMOST Medium-Resolution Survey. II. Statistics
• The Kinematics of 30 Milky Way Globular Clusters and the Multiple Stellar Populations within
• Detailed $\alpha$ abundance trends in the inner Galactic bulge
• The impact of carbon and oxygen abundances on the metal-poor initial mass function
• Extended atomic data for oxygen abundance analyses
• Chemodynamical Analysis of Metal-rich High-eccentricity Stars in the Milky Way's Disk
• Evolution of the radial ISM metallicity gradient in the Milky Way disk since redshift $\approx 3$
• The Stellar "Snake" I: Whole Structure and Properties
• GalCEM I -- An Open-Source Detailed Isotopic Chemical Evolution Code
• The K2 Asteroseismic KEYSTONE sample of Dwarf and Subgiant Solar-Like Oscillators. I: Data and Asteroseismic parameters
• Lithium in red giants: the roles of the He-core flash and the luminosity bump
• Characterisation of local halo building blocks: Thamnos and Sequoia
• Robust Clustering of the Local Milky Way Stellar Kinematic Substructures with Gaia eDR3
• A Model RRNet for Spectral Information Exploitation and LAMOST Medium-resolution Spectrum Parameter Estimation
• Homogeneous Stellar Atmospheric Parameters and 22 Elemental Abundances for FGK Stars Derived From LAMOST Low-resolution Spectra with DD-Payne
• Asteroseismic Study of Subgiants and Giants of the Open Cluster M67 using Kepler/K2: Expanded Sample and Precise Masses
• Investigating Gaia EDR3 parallax systematics using asteroseismology of Cool Giant Stars observed by Kepler, K2, and TESS I. Asteroseismic distances to 12,500 red-giant stars
• A spectroscopic and kinematic survey of fast hot subdwarfs
• A spectroscopically confirmed Gaia-selected sample of 318 new young stars within $\sim$200 pc
• Survey for Distant Solar Twins (SDST) -- I. EPIC method for stellar parameter measurement
• Probing infrared excess connection with Li enhancement among red clump giants
• Unravelling the mass spectrum of destroyed dwarf galaxies with the metallicity distribution function
• LAMA: LAMOST Medium-Resolution Spectral Analysis Pipeline
• A distinct halo population revealed from 3D non-LTE magnesium abundances
• The GALAH survey: New diffuse interstellar bands found in residuals of 872,000 stellar spectra
• The Pristine survey: XXV. The very metal-poor Galaxy: Chemodynamics through the follow-up of the Pristine-Gaia synthetic catalogue
• Characterising abundance-age relations of GALAH stars using oxygen-enhanced stellar models
• Double Red Giant Branch and Red Clump features of Galactic disc stellar populations with Gaia GSPspec
• The chemical enrichment of the Milky Way disk evaluated using conditional abundances
• Are Lithium-Rich Giants Binaries? A Radial Velocity Variability Analysis of 1,400 Giants
• The Pristine survey -- XX: GTC follow-up observations of extremely metal-poor stars identified from Pristine and LAMOST
• Metallicity and $\alpha$-abundance for 48 million stars in low-extinction regions in the Milky Way
• Lithium in Kepler Red Giants: Defining Normal and Anomalous
• Chronology of our Galaxy from Gaia colour-magnitude diagram fitting (ChronoGal) II. Unveiling the formation and evolution of the kinematically selected Thick and Thin Discs
• Where are the extremely metal-poor stars in the Milky Way and Andromeda? Expectations from TNG50
• Cool and Data-Driven: An Exploration of Optical Cool Dwarf Chemistry with Both Data-Driven and Physical Models
• Tidal debris from Omega Centauri discovered with unsupervised machine learning
• Searching for Extragalactic Exoplanetary Systems: the Curious Case of BD+20 2457
• Hidden deep in the halo: selection of a reduced proper motion halo catalogue and mining retrograde streams in the velocity space
• Chemical Evolution of R-process Elements in Stars (CERES). III. Chemical abundances of neutron capture elements from Ba to Eu
• Untangling the Sources of Abundance Dispersion in Low-Metallicity Stars
• Recent star formation episodes in the Galaxy: impact on its chemical properties and the evolution of its abundance gradient
• SpectroTranslator: a deep-neural network algorithm to homogenize spectroscopic parameters
• Closing the stellar labels gap: Stellar label independent evidence for [$\alpha /M$] information in Gaia BP/RP spectra
• A coherent view of Li depletion and angular momentum transport to explain the Li plateau -- from Population II to Population I stars
• The GALAH Survey: Dependence of elemental abundances on age and metallicity for stars in the Galactic disc
• THA 15-31: Discovery with VLT/X-Shooter and Swift/UVOT of a new symbiotic star of the accreting-only variety
• Mapping the Milky Way with Gaia Bp/Rp spectra I: Systematic flux corrections and atmospheric parameters for 68 million stars
• A GALAH View of the Chemical Homogeneity and Ages of Stellar Strings Identified in Gaia
• How well can we unravel the accreted constituents of the Milky Way stellar halo? A test on cosmological hydrodynamical simulations
• Investigating the Upper Scorpius OB association with HERMES. I. The spectroscopic sample and 6D kinematics
• Machine Learning the 6th Dimension: Stellar Radial Velocities from 5D Phase-Space Correlations
• Neutrino-driven Core-collapse Supernova Yields in Galactic Chemical Evolution
• A Blueprint for the Milky Way's Stellar Populations. IV. A String of Pearls $-$ the Galactic Starburst Sequence
• A machine learning approach to photometric metallicities of giant stars
• Spectroscopic follow-up of statistically selected extremely metal-poor star candidates from GALAH DR3
• Stellar Loci VI: An Updated Catalog of the Best and Brightest Metal-poor Stars
• Reliable stellar abundances of individual stars with the MUSE integral-field spectrograph
• Peeking beneath the precision floor -- II. Probing the chemo-dynamical histories of the potential globular cluster siblings, NGC 288 and NGC 362
• Disks in Nearby Young Stellar Associations Found Via Virtual Reality
• The GALAH Survey: Stellar parameters and abundances for 800,000 Gaia RVS spectra using GALAH DR4 and The Cannon
• The "C": The large Chameleon-Musca-Coalsack cloud
• TIC 43152097. The first eclipsing binary in NGC 2232
• Probing Na in giant exoplanets with ESPRESSO and 3D NLTE stellar spectra
• The Magellanic Puzzle: origin of the periphery
• Rediscovering the Milky Way with orbit superposition approach and APOGEE data I. Method validation
• Rediscovering the Milky Way with orbit superposition approach and APOGEE data II. Chrono-chemo-kinematics of the disc
• Ba Enrichment in Gaia MS+WD Binaries: Tracing $s$-Process Element Production
• Exploring the dependence of chemical traits on metallicity: chemical trends for red giant stars with asteroseismic ages
• Evolution of lithium in the disc of the Galaxy and the role of novae
• High-Resolution Chemical Abundances of the Nyx Stream
• A Blueprint for the Milky Way's Stellar Populations. V. 3D Local Dust Extinction
• The ones that got away: chemical tagging of globular cluster-origin stars with Gaia BP/RP spectra
• A catalogue of asteroseismically calibrated ages for APOGEE DR17. The predictions of a CatBoost machine learning model based on the [Mg/Ce] chemical clock and other stellar parameters
• The inflated, eccentric warm Jupiter TOI-4914 b orbiting a metal-poor star, and the hot Jupiters TOI-2714 b and TOI-2981 b
• Ba-enhanced dwarf and subgiant stars in the LAMOST Galactic surveys
• The Gaia spectroscopic catalogue of exoplanets and host stars
• The Gaia-ESO Survey DR5.1 and Gaia DR3 GSP-Spec: a comparative analysis
• Exploring the ex-situ components within Gaia DR3
• Effects of secular growth and mergers on the evolution of metallicity gradients and azimuthal variations in a Milky Way-like galaxy
• Measuring the Streaming motion in the Milky Way disc with Gaia EDR3 +
• On the Migration Origin of the Hercules Moving Group with GAIA, LAMOST, APOGEE, and GALAH Surveys
• The Solar System's passage through the Radcliffe wave during the middle Miocene
• Parameter Estimation of LAMOST Medium-resolution Stellar Spectra
• Potential Impact of the Sagittarius Dwarf Galaxy on the Formation of Young O-rich Stars
• The GALAH Survey: Improving our understanding of confirmed and candidate planetary systems with large stellar surveys
• Cosmological Simulations of Stellar Halos with Gaia Sausage-Enceladus Analogues: Two Sausages, One Bun?
• GaiaUnlimited: The old stellar disc of the Milky Way as traced by the Red Clump
• Constraining the Planet Occurrence Rate around Halo Stars of Potentially Extragalactic Origin
• Characterising the AGB bump and its potential to constrain mixing processes in stellar interiors
• A Spectroscopic Analysis of a Sample of K2 Planet-Host Stars: Stellar Parameters, Metallicities and Planetary Radii
• Convective Mixing: The Formation Channel of Li-rich Giants
• Discovery of a pair of very metal-poor stars enriched in neutron-capture elements: The proto-disk r-II star BPS CS 29529-0089 and the Gaia-Sausage-Enceladus r-I star TYC 9219-2422-1
• A Data-driven Spectral Model of Main Sequence Stars in Gaia DR3
• Metallicities of old open clusters: A new Galactic map
• Stellar Migration and Chemical Enrichment in the Milky Way Disc: A Hybrid Model
• The Pristine Survey -- XXVII. Journey to the Galactic outskirts -- Mapping the outer halo red giant stars down to the very metal-poor end
• Gaia Barium Dwarfs and Their Ostensibly Ordinary Counterparts
• The GALAH survey: Improving chemical abundances using star clusters
• WIde Separation Planets In Time (WISPIT): Two directly imaged exoplanets around the Sun-like stellar binary WISPIT 1
• Stellar Population Astrophysics (SPA) with the TNG: NLTE atmospheric parameters and abundances of giant stars in 33 Open Clusters
• A Catalog of 12,766 Carbon-enhanced Metal-poor Stars from LAMOST Data Release 8
• Determination of Sodium Abundance Ratio from Low-Resolution Stellar Spectra and Its Applications
• Chemodynamical Ages of Small-Scale Kinematic Structures of the Galactic Disc in the Solar Neighborhood from ~250,000 K and M Dwarfs
• First Resolution of Microlensed Images of a Binary-Lens Event
• Using Artificial Intelligence and real galaxy images to constrain parameters in galaxy formation simulations
• The bi-modal ${}^7$Li distribution of the Milky Way's thin-disk dwarf stars: The role of Galactic-scale events and stellar evolution
• Revealing the Milky Way's Most Recent Major Merger with a Gaia EDR3 Catalog of Machine-Learned Line-of-Sight Velocities
• How does the chemical composition of solids influence the formation of planetesimals?
• Linking high-z and low-z: Are We Observing the Progenitors of the Milky Way with JWST?
• Migration and Evolution of giant ExoPlanets (MEEP) II: Super-Jupiters and Lithium-rich Host Stars
• CN and CO Features: Key Indicators of Red Giant Evolutionary Phase in Moderate-Resolution X-Shooter Spectra
• Towards characterising rocky worlds: Trends in chemical make-ups of M dwarfs versus GK dwarfs
• Can radial motions in the stellar halo constrain the rate of change of mass in the Galaxy?
• S-Process Nucleosynthesis in Chemically Peculiar Binaries
• Secrets in the shadow: High precision stellar abundances of fast-rotating A-type exoplanet host stars through transit spectroscopy
• Constraining gas metal mixing strength in simulations using observations of the Milky Way's disc
• Proto-planetary disk composition-dependent element volatility in the context of rocky planet formation
• Binary stellar evolution yields in galactic chemical evolution calculations
• Survey for Distant Solar Twins (SDST) -- III. Identification of new solar twin and solar analogue stars
• The Chemodynamical Nature of the Triangulum-Andromeda Overdensity
• Rotationally Driven Ultraviolet Emission of Red Giant Stars II. Metallicity, Activity, Binarity and Sub-subgiants
• From moving groups to star formation in the Solar Neighborhood
• Disentangling stellar atmospheric parameters in astronomical spectra using Generative Adversarial Neural Networks
• Type II and anomalous Cepheids in the Kepler K2 mission
• M Subdwarf Research III. Spectroscopic Diagnostics for Breaking Parameter Degeneracy
• A path towards constraining the evolution of the interstellar medium and outflows in the Milky Way using APOGEE
• Measuring the Diffuse Interstellar Bands at 5780, 5797, and 6614 Å in Low-Resolution Spectra of Cool Stars from LAMOST
• On the origin of the Hercules group: I. chemical signatures indicating the outer bar origin
• Unevolved Li-rich stars at low metallicity: a possible formation pathway through novae
• The oldest Milky Way stars: New constraints on the age of the Universe and the Hubble constant
• Lithium evolution in the Galactic thin disc from Main-Sequence and early Red-Giant-Branch stars
• MANGOS II: Five new giant planets orbiting low-mass stars
• The R-Process Alliance: Exploring the cosmic scatter among ten r-process sites with stellar abundances
• On the Use of Field RR Lyrae as Galactic Probes -- VIII. Early Formation of the Galactic Spheroid
• From CO${}_2$- to H${}_2$O-dominated atmospheres and back -- How mixed outgassing changes the volatile distribution in magma oceans around M dwarf stars
• Toward more accurate RR Lyrae metallicities
• J01020100-7122208: an accreted evolved blue straggler that wasn't ejected from a supermassive black hole
• The evolution of velocity dispersion in the Sco-Cen OB association
• Survey for Distant Solar Twins (SDST) -- II. Design, observations and data
• Disentanglement of the chemodynamical assembly: mapping the Milky Way disks
• Solar twins in Gaia DR3 GSP-Spec I. Building a large catalog of Solar twins with ages
• The Survey of Surveys: machine learning for stellar parametrization
• Stellar substructures in the Galactic disc and halo: Properties, origins, and evolution
• The accreted Galaxy: An overview of TESS metal-poor accreted stars candidates
• Stellar Characterization and a Chromospheric Activity Analysis of a K2 Sample of Planet-Hosting Stars
• Dissecting stellar populations with manifold learning I. Validation of the method on a synthetic Milky Way-like galaxy
• Full abundance study of two newly discovered barium giants
• The metal-poorest tail of the Galactic halo: hypothesis on its origin from precise spectral analysis
• Structure and Melting of Fe, MgO, SiO2, and MgSiO3 in Planets: Database, Inversion, and Phase Diagram
• Exploring the habitability and interior composition of exoplanets lying within the extended habitable zone
• The Fraction of Distilled White Dwarfs with Long-Lived Habitable Zones
• Quantitatively rating galaxy simulations against real observations with anomaly detection
• Disentangling Milky Way halo populations at low metallicities using [Al/Fe]
• Moving Groups in the Solar Neighborhood with Gaia, APOGEE, GALAH, and LAMOST: Dynamical Effects Gather Gas and the Ensuing Star Formation Plays an Important Role in Shaping the Stellar Velocity Distributions
• A Sequoia stellar candidate with very high 7Li and 9Be
• Mapping the Milky Way with Gaia Bp/Rp spectra-IV: the broken and asymmetric density profile of the stellar disk traced by a large sample of red clumps
• PhDLspec: physical-prior embedded deep learning method for spectroscopic determination of stellar labels in high-dimensional parameter space
• Stellar age determination using deep neural networks: Isochrone ages for 1.3 million stars, based on BaSTI, MIST, PARSEC, Dartmouth and SYCLIST evolutionary grids
• Gaia DR3 high radial velocity stars: Genuine fast-moving objects or outliers?
• Identifying and characterizing ultracool dwarfs ejected from post-encounter disintegrating systems
• The odd bunch: chrono-chemo-dynamics of sixteen unusual stars from Kepler
• IK Pegasi and the Double-merger Path to Type Ia Supernovae
• Bridging Simulations and Observations: New Insights into Galaxy Formation Simulations via Out-of-Distribution Detection and Bayesian Model Comparison
• Double Trouble: How Unresolved Spectroscopic Binary Stars Skew GALAH DR4 Stellar Parameters
• Searching for and characterizing halo substructures with the GALAH DR4 survey
• Probing the Milky Way Halo with RR Lyrae Stars from Gaia Data Release 3
• A search for Galactic post-asymptotic giant branch stars in Gaia DR3
• Viability of novae as sources of Galactic lithium
• PISP: Projected-Space Inference of Stellar Parameters
• Magnesium Isotopic Detection in Cool Stars: Tracing Nucleosynthetic Signatures from MgH Features
• Towards model-free stellar chemical abundances. Potential applications in the search for chemically peculiar stars in large spectroscopic surveys
• TFAW survey II: 6 Newly Validated Planets and 13 Planet Candidates from K2
• Investigating non-LTE abundances of Neodymium (Nd) in metal-poor FGK stars
• J-PLUS Reconstructing the Milky Way Disc's star formation history with twelve-filter photometry
• Globular clusters of the Gaia Enceladus/Sausage -- I. Orbital and dynamical evolution on cosmological timescales
• Looking for Signs of Unresolved Binarity in the Continuum of LAMOST Stellar Spectra
• The bimodal distribution of donor stars in X-ray binaries
• Neutron-capture elements record the ordered chemical evolution of the disc over time
• Fornax 3D project: assessing the diversity of IMF and stellar population maps within the Fornax Cluster
• Comparing dark matter and MOND hyphotheses from the distribution function of A, F, early-G stars in the solar neighbourhood
• 3D elemental abundances of stars at formation across the histories of Milky Way-mass galaxies in the FIRE simulations
• Ages of Main-Sequence Turn-Off Stars from the GALAH Survey
• Two sequences in the age-metallicity relation as seen from [C/N] abundances in APOGEE
• Testing MOND using the dynamics of nearby stellar streams
• The GALAH Survey: A New Sample of Extremely Metal-Poor Stars Using A Machine Learning Classification Algorithm
• The GALAH Survey: Neutron-Capture Elemental Abundances for 350,000 Gaia-RVS spectra and the Chemodynamics of Accreted Structures
• Gaia-Sausage-Enceladus: Lithium evolution from early red-giant-branch and main-sequence stars