The GALAH Survey: Scientific Motivation

Abstract

The GALAH survey is a large high-resolution spectroscopic survey using the newly commissioned HERMES spectrograph on the Anglo-Australian Telescope. The HERMES spectrograph provides high-resolution (R ~28,000) spectra in four passbands for 392 stars simultaneously over a 2 degree field of view. The goal of the survey is to unravel the formation and evolutionary history of the Milky Way, using fossil remnants of ancient star formation events which have been disrupted and are now dispersed throughout the Galaxy. Chemical tagging seeks to identify such dispersed remnants solely from their common and unique chemical signatures; these groups are unidentifiable from their spatial, photometric or kinematic properties. To carry out chemical tagging, the GALAH survey will acquire spectra for a million stars down to V~14. The HERMES spectra of FGK stars contain absorption lines from 29 elements including light proton-capture elements, alpha-elements, odd-Z elements, iron-peak elements and n-capture elements from the light and heavy s-process and the r-process. This paper describes the motivation and planned execution of the GALAH survey, and presents some results on the first-light performance of HERMES.

arXiv comment16 pages, 7 figures

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• Reading the CARDs: the Imprint of Accretion History in the Chemical Abundances of the Milky Way's Stellar Halo
• A Dynamical Model for Clustered Star Formation in the Galactic Disk
• The stellar parameters and elemental abundances from low-resolution spectra I: 1.2 million giants from LAMOST DR8
• The GALAH Survey and Symbiotic Stars. I. Discovery and follow-up of 33 candidate accreting-only systems
• The Metal-Poor Metallicity Distribution of the Ancient Milky Way
• Metallicity distributions of halo stars: do they trace the Galactic accretion history?
• Combined APOGEE-GALAH stellar catalogues using the Cannon
• The $Gaia$-ESO Survey: the inner disk intermediate-age open cluster NGC 6802
• The observable properties of galaxy accretion events in Milky Way-like galaxies in the FIRE-2 cosmological simulations
• Multiwavelength Absolute Magnitudes and Colours of Red Clump Stars in {\it Gaia} Era
• Uncertainties in Galaxy Rotation Curves
• The GALAH Survey: Chemically tagging the Fimbulthul stream to the globular cluster $\omega$ Centauri
• Atmospheric stellar parameters for large surveys using FASMA, a new spectral synthesis package
• Stellar Spins in the Open Cluster NGC 2516
• The velocity ellipsoid in the Galactic disc using Gaia DR1
• Abundances of Na, Mg, and K in the atmospheres of red giant branch stars of Galactic globular cluster 47 Tucanae
• ATHOS: On-the-fly stellar parameter determination of FGK stars based on flux ratios from optical spectra
• Stellar Atmospheric Parameters of M-type Stars from LAMOST DR8
• Residual Abundances in GALAH DR3: Implications for Nucleosynthesis and Identification of Unique Stellar Populations
• The GAPS Programme at TNG -- XXV. Stellar atmospheric parameters and chemical composition through GIARPS optical and near-infrared spectra
• The stellar halo in Local Group Hestia simulations III. Chemical abundance relations for accreted and in-situ stars
• Accelerated Fitting of Stellar Spectra
• A first estimate of the Milky Way dark matter halo spin
• The GALAH Survey: Temporal Chemical Enrichment of the Galactic Disk
• The relationship between age, metallicity, and abundances for disk stars in a simulated Milky Way galaxy
• Young stars as tracers of a barred-spiral Milky Way
• A chemo-dynamical link between the Gjöll stream and NGC 3201
• The AMBRE Project: Spectrum normalisation influence on Mg abundances in the metal-rich Galactic disc
• A rogues gallery of Andromeda's dwarf galaxies II. Precise Distances to 17 Faint Satellites
• Investigating dynamical properties of evolved Galactic open clusters
• Estimating Stellar Parameters from LAMOST Low-resolution Spectra
• Analysis of Stellar Spectra from LAMOST DR5 with Generative Spectrum Networks
• Titans metal-poor reference stars. I. Accurate effective temperatures and surface gravities for dwarfs and subgiants from 3D non-LTE H$\alpha$ profiles and Gaia parallaxes
• Single-lined Spectroscopic Binary Star Candidates from a Combination of the RAVE and Gaia DR2 surveys
• HERBS I: Metallicity and alpha enhancement along the Galactic bulge minor axis
• Galactic googly: the rotation-metallicity bias in the inner stellar halo of the Milky Way
• The Chemical Nature of the Young 120-Myr-old Nearby Pisces-Eridanus Stellar Stream Flowing through the Galactic Disk
• CCD UBV photometric and Gaia astrometric study of eight open clusters- ASCC 115, Collinder 421, NGC 6793, NGC 7031, NGC 7039, NGC 7086, Roslund 1 and Stock 21
• Chronology of the chemical enrichment of the old Galactic stellar populations
• Chemically peculiar A and F stars with enhanced s-process and iron-peak elements: stellar radiative acceleration at work
• The spectroscopic indistinguishability of red giant branch and red clump stars
• The APO-K2 Catalog. II. Accurate Stellar Ages for Red Giant Branch Stars across the Milky Way
• Systematic Differences in Spectroscopic Analysis of Red Giants
• Climbing the cosmic ladder with stellar twins
• The GALAH Survey: Accreted stars also inhabit the Spite Plateau
• PISN-explorer: hunting the descendants of very massive first stars
• Photometric recalibration of the SDSS Stripe 82 to a few milimagnitude precision with the stellar color regression method and Gaia EDR3
• The GALAH survey: Tracing the Milky Way's formation and evolution through RR Lyrae stars
• Symbiotic stars in the era of modern ground- and space-based surveys
• Taking the Milky Way for a spin: disc formation in the ARTEMIS simulations
• Many Roads Lead to Lithium: Formation Pathways For Lithium-Rich Red Giants
• The Eclipsing Binaries from the LAMOST Medium-resolution Survey.III. A High-precision Empirical Stellar Mass Library
• On the origins of extreme velocity stars as revealed by large-scale Galactic surveys
• Beyond the Local Volume. I. Surface Densities of Ultracool Dwarfs in Deep HST/WFC3 Parallel Fields
• Universal properties of the high- and low-α disk: small intrinsic abundance scatter and migrating stars
• Spiral arm kinematics for Milky Way stellar populations
• Four-hundred Very Metal-poor Stars Studied with LAMOST and Subaru. III. Dynamically Tagged Groups and Chemodynamical Properties
• Forecasting Chemical Abundance Precision for Extragalactic Stellar Archaeology
• Photometric metallicity for 694233 Galactic giant stars from Gaia DR3 synthetic Stromgren photometry. Metallicity distribution functions of halo sub-structures
• The Gaia-ESO Survey: Oxygen abundance in the Galactic thin and thick disks
• Origin of metals in old Milky Way halo stars based on GALAH and Gaia
• High- and Low-$\alpha$ Disk Stars Separate Dynamically at all Ages
• oMEGACat II -- Photometry and proper motions for 1.4 million stars in Omega Centauri and its rotation in the plane of the sky
• On the Color-Metallicity Relation of the Red Clump and the Reddening Toward the Magellanic Clouds
• Candidate Members of the VMP/EMP Disk System of the Galaxy from the SkyMapper and SAGES Surveys
• Deep Potential: Recovering the gravitational potential from a snapshot of phase space
• A kinematic calibration of the O-rich Mira variable period-age relation from Gaia
• Lithium Evolution of Giant Stars Observed by LAMOST and Kepler
• Stellar atmospheric parameters of FGK-type stars from high-resolution optical and near-infrared CARMENES spectra
• The formation of the Milky Way halo and its dwarf satellites: A NLTE-1D abundance analysis. V. The Sextans galaxy
• The role of radial migration in open cluster and field star populations with Gaia dr3
• Age-metallicity dependent stellar kinematics of the Milky Way disc from LAMOST and Gaia
• Disentangled Representation Learning for Astronomical Chemical Tagging
• An old, metal-rich accreted stellar component in the Milky Way stellar disk
• 60 candidate high-velocity stars originating from the Sagittarius dwarf spheroidal galaxy in Gaia EDR3
• Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. VII. Lithium
• Precise Masses, Ages of ~1.0 million RGB and RC stars observed by the LAMOST
• The GALAH+ Survey: A New Library of Observed Stellar Spectra Improves Radial Velocities and Hints at Motions within M67
• Identification, mass and age of primary red clump stars from spectral features derived with the LAMOST DR7
• The GALAH survey: a catalogue of carbon-enhanced stars and CEMP candidates
• The GALAH survey: Co-orbiting stars and chemical tagging
• Star Cluster Ages in the Gaia Era
• One Star to Tag Them All (OSTTA): I. Radial velocities and chemical abundances for 20 poorly studied open clusters
• GalMod: a Galactic synthesis population model
• Correlations between age, kinematics, and chemistry as seen by the RAVE survey
• A data-driven model of nucleosynthesis with chemical tagging in a lower-dimensional latent space
• Photometric and spectroscopic study of the intermediate-age open cluster NGC 2355
• An extended and refined grid of 3D STAGGER model atmospheres. Processed snapshots for stellar spectroscopy
• Gaia-ESO Survey: INTRIGOSS - A new library of High Resolution Synthetic Spectra
• Constraints on the Galactic Centre environment from Gaia hypervelocity stars II: The evolved population
• The Gaia-ESO Survey: Spectroscopic-asteroseismic analysis of K2 stars in Gaia-ESO
• The Stars of the HETDEX Survey. I. Radial Velocities and Metal-Poor Stars from Low-Resolution Stellar Spectra
• The HR 1614 moving group is not a dissolving cluster
• The GALAH Survey: Lithium-strong KM dwarfs
• Titans metal-poor reference stars II. Red giants and CEMP stars
• The retrograde orbit of the globular cluster FSR1758 revealed with Gaia DR2
• Gaia's brightest very metal-poor (VMP) stars. Metallicity catalogue of a thousand VMP stars from Gaia's radial velocity spectrometer spectra
• The chemical evolution of the solar neighbourhood for planet-hosting stars
• A Study of Stellar Spins in 15 Open Clusters
• The Gaia-ESO Survey: Chemical tagging in the thin disk. Open clusters blindly recovered in the elemental abundance space
• New cluster members and halo stars of the Galactic globular cluster NGC 1851
• Chemo-Dynamical Clustering applied to APOGEE data: Re-Discovering Globular Clusters
• The Symbiotic X-ray Binary IGR J16194-2810: A Window on the Future Evolution of Wide Neutron Star Binaries From Gaia
• Exploring the chemodynamics of metal-poor stellar populations
• The Parent Populations of 6 groups identified from Chemical Tagging in the Solar neighborhood
• Spectroscopy of Dwarf Stars Around the North Celestial Pole
• Fundamental stellar parameters of benchmark stars from CHARA interferometry -- II. Dwarf stars
• Classification of High-resolution Solar Hα Spectra using t-distributed Stochastic Neighbor Embedding
• Torus Models of the Outer Disc of the Milky Way using LAMOST Survey Data
• Stars in the Local Galactic Thick Disk and Halo in Gaia EDR3: A catalogue of Half a Million Local Main-sequence Stars with Photometric Metallicities
• Chemodynamical Analysis of Metal-rich High-eccentricity Stars in the Milky Way's Disk
• Climbing the cosmic ladder with stellar twins in RAVE with Gaia
• The GALAH Survey: Using Galactic Archaeology to Refine our Knowledge of TESS Target Stars
• Data-Driven Stellar Models
• Photospheric nitrogen abundances and carbon 12C/13C ratios of red giant stars
• Holistic spectroscopy: Complete reconstruction of a wide-field, multi-object spectroscopic image using a photonic comb
• Beyond the Local Volume. II. Population Scaleheights and Ages of Ultracool Dwarfs in Deep HST/WFC3 Parallel Fields
• Chemical composition of giant stars in the open cluster IC 4756
• Insights into the Formation and Evolution History of the Galactic Disk System
• An investigation of the formation and line properties of MgH in 3D hydrodynamical model stellar atmospheres
• Our Galaxy's youngest disc
• Sick, the spectroscopic inference crank
• GalCEM I -- An Open-Source Detailed Isotopic Chemical Evolution Code
• The Milky Way Revealed by Variable Stars I: Sample Selection of RR Lyrae stars, and Evidence for the Merger History
• Chemical Cartography with APOGEE: Two-process Parameters and Residual Abundances for 288,789 Stars from Data Release 17
• The APOGEE Library of Infrared SSP Templates (A-LIST): High-Resolution Simple Stellar Population Spectral Models in the H-Band
• Characterisation of local halo building blocks: Thamnos and Sequoia
• Local Stellar Kinematics from RAVE data -- VIII. Effects of the Galactic Disc Perturbations on Stellar Orbits of Red Clump Stars
• Spatial and Kinematic Clustering of Stars in the Galactic Disk
• A Model RRNet for Spectral Information Exploitation and LAMOST Medium-resolution Spectrum Parameter Estimation
• The GALAH survey: New diffuse interstellar bands found in residuals of 872,000 stellar spectra
• LAMA: LAMOST Medium-Resolution Spectral Analysis Pipeline
• High-resolution near-infrared spectroscopy of globular cluster and field stars toward the Galactic bulge
• On the Origin of Metal-poor Stars in the Solar Neighborhood
• The GALAH survey: Characterization of emission-line stars with spectral modelling using autoencoders
• $\text{Siriusly}$, a newly identified intermediate-age Milky Way stellar cluster: A spectroscopic study of $\text{Gaia}$ 1
• The Belgian repository of fundamental atomic data and stellar spectra (BRASS) II. Quality assessment of atomic data for unblended lines in FGK stars
• A Geologically Robust Procedure For Observing Rocky Exoplanets to Ensure that Detection of Atmospheric Oxygen is an Earth-Like Biosignature
• Chemical Compositions of Red Giant Stars from Habitable Zone Planet Finder Spectroscopy
• Metallicity and $\alpha$-abundance for 48 million stars in low-extinction regions in the Milky Way
• Non-Parametric Spherical Jeans Mass Estimation with B-splines
• Chemical Evolution of R-process Elements in Stars (CERES). III. Chemical abundances of neutron capture elements from Ba to Eu
• 3D Parameter Maps of Red Clump Stars in the Milky Way -- Absolute Magnitudes and Intrinsic Colors
• Jeans that fit: weighing the mass of the Milky Way analogues in the $\Lambda \mathrm{CDM}$ universe
• Chemo-dynamics and asteroseismic ages of seven metal-poor red giants from the Kepler field
• Influence of the Galactic bar on the kinematics of the disc stars with Gaia EDR3 data
• The S-PLUS Ultra-Short Survey: first data release
• K2-HERMES II. Planet-candidate properties from K2 Campaigns 1-13
• Derivation of parameters for 3748 FGK stars using H-band spectra from APOGEE Data Release 14
• The Chemical Abundance Structure of the Inner Milky Way: A Signature of "Upside-Down" Disk Formation?
• Tidal debris from Omega Centauri discovered with unsupervised machine learning
• Lithium in Kepler Red Giants: Defining Normal and Anomalous
• A GALAH View of the Chemical Homogeneity and Ages of Stellar Strings Identified in Gaia
• Fundamental stellar parameters of benchmark stars from CHARA interferometry -- III. Giant and subgiant stars
• The closest extremely low-mass white dwarf to the Sun
• Reliable stellar abundances of individual stars with the MUSE integral-field spectrograph
• Probing 3D and NLTE models using APOGEE observations of globular cluster stars
• Internal calibration of LAMOST and Gaia DR3 GSP-Spec stellar abundances
• THA 15-31: Discovery with VLT/X-Shooter and Swift/UVOT of a new symbiotic star of the accreting-only variety
• The Gaia-ESO Survey: Probing the lithium abundances in old metal-rich dwarf stars in the Solar vicinity
• Mapping the Milky Way with Gaia Bp/Rp spectra I: Systematic flux corrections and atmospheric parameters for 68 million stars
• The GALAH Survey: Relative throughputs of the 2dF fibre positioner and the HERMES spectrograph from stellar targets
• Carbon-enhanced metal-poor stars in the SDSS-APOGEE database
• A chemical and kinematical analysis of the intermediate-age open cluster IC 166 from APOGEE and Gaia DR2
• TIC 43152097. The first eclipsing binary in NGC 2232
• Inferring stellar parameters and their uncertainties from high-resolution spectroscopy using invertible neural networks
• The formation history of the Milky Way disc with high-resolution cosmological simulations
• X-raying the Sco-Cen OB association: The low-mass stellar population revealed by eROSITA
• The Chemodynamics of the Stellar Populations in M31 from APOGEE Integrated Light Spectroscopy
• Exploring the dependence of chemical traits on metallicity: chemical trends for red giant stars with asteroseismic ages
• Two-dimensional non-LTE \ion{O}{I} 777\,nm line formation in radiation hydrodynamics simulations of Cepheid atmospheres
• Identification of new nearby white dwarfs using Gaia DR3
• The GALAH Survey: Stellar parameters and abundances for 800,000 Gaia RVS spectra using GALAH DR4 and The Cannon
• An observational testbed for cosmological zoom-in simulations: constraining stellar migration in the solar cylinder using asteroseismology
• AGB subpopulations in the nearby globular cluster NGC 6397
• StarFlow: Leveraging Normalizing Flows for Stellar Age Estimation in SDSS-V DR19
• Aeos: Transport of Metals from Minihalos following Population III Stellar Feedback
• The ones that got away: chemical tagging of globular cluster-origin stars with Gaia BP/RP spectra
• Measuring the Streaming motion in the Milky Way disc with Gaia EDR3 +
• The Gaia-ESO Survey DR5.1 and Gaia DR3 GSP-Spec: a comparative analysis
• Measuring Dwarf Galaxy Intrinsic Abundance Scatter with Mid-resolution Spectroscopic Surveys: Calibrating APOGEE Abundance Errors
• The GALAH survey: unresolved triple Sun-like stars discovered by the Gaia mission
• Parameter Estimation of LAMOST Medium-resolution Stellar Spectra
• Exploring the ex-situ components within Gaia DR3
• The Lives of Stars: Insights From the TGAS-RAVE-LAMOST Dataset
• LOTUS: A (non-)LTE Optimization Tool for Uniform derivation of Stellar atmospheric parameters
• The metallicity and elemental abundance maps of kinematically atypical galaxies for constraining minor merger and accretion histories
• GaiaUnlimited: The old stellar disc of the Milky Way as traced by the Red Clump
• Validating Stellar Abundance Measurements from Multi-Resolution Spectroscopy
• SSSpaNG! Stellar Spectra as Sparse, data-driven, Non-Gaussian processes
• The global structure of the Milky Way's stellar halo based on the orbits of local metal-poor stars
• Topography of the Young Galactic Disk: Spatial and Kinematic Patterns of the Clustered Star Formation in the Solar Neighborhood
• Automatic line selection for abundance determination in large stellar spectroscopic surveys
• The GALAH Survey: Improving our understanding of confirmed and candidate planetary systems with large stellar surveys
• New stellar age estimates using SPInS based on Gaia DR3 photometry and LAMOST DR8 abundances
• The role of radial migration on tracing lithium evolution in the Galactic disk
• 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
• Potential Impact of the Sagittarius Dwarf Galaxy on the Formation of Young O-rich Stars
• On the variation in stellar $\alpha$-enhancements of star-forming galaxies in the EAGLE simulation
• A Data-driven Spectral Model of Main Sequence Stars in Gaia DR3
• Discovery of a Metal-Poor Red Giant Star with the Highest Ultra-Lithium Enhancement
• First Resolution of Microlensed Images of a Binary-Lens Event
• The GALAH survey: Improving chemical abundances using star clusters
• Local dark matter density from Gaia DR3 K-dwarfs using Gaussian processes
• Metallicities of old open clusters: A new Galactic map
• Stellar Population Astrophysics (SPA) with the TNG: NLTE atmospheric parameters and abundances of giant stars in 33 Open Clusters
• Nearby stellar substructures in the Galactic halo from DESI Milky Way Survey Year 1 Data Release
• A spectroscopic quadruple as a possible progenitor of sub-Chandrasekhar Type Ia supernovae
• The GALAH survey: Multiple stars and our Galaxy. I. A comprehensive method for deriving properties of FGK binary stars
• Rare Find: Discovery and chemo-dynamical properties of two s-process enhanced RR Lyrae stars
• The Milky Way in context: The formation of galactic discs and chemical sequences from a cosmological perspective
• Reconstructing the Milky Way chemical map with Galactic Chemical Evolution tool OMEGA+ from SDSS-MWM
• CAPOS: The bulge Cluster APOgee Survey VII. First detailed chemical analysis of NGC 6316
• Abundance of zinc in the red giants of Galactic globular cluster 47 Tucanae
• An Unsupervised Machine Learning Approach to Identify Spectral Energy Distribution Outliers: Application to the S-PLUS DR4 data
• Introduction to Tidal Streams
• Applying machine learning to Galactic Archaeology: how well can we recover the origin of stars in Milky Way-like galaxies?
• Rubidium abundances in solar metallicity stars
• Gaia Benchmark stars and their twins in the Gaia-ESO Survey
• zoomies: A tool to infer stellar age from vertical action in Gaia data
• Fuzzy Cluster Analysis: Application to Determining Metallicities for Very Metal-poor Stars
• Kinematic-Chemical analysis and Time tagging for the Diagonal Ridge Structure of the Galactic Outer Disk with LAMOST Red Giant Branch Stars
• A baseline on the relation between chemical patterns and birth stellar cluster
• Spectral Evidence of Solar Neighborhood Analogs in CALIFA Galaxies
• Vintage NPOI: New and Updated Angular Diameters for 145 Stars
• Lithium evolution in the Galactic thin disc from Main-Sequence and early Red-Giant-Branch stars
• Chemical tagging with APOGEE, MUSE, and HST: constraints on the formation of $\omega$ Centauri
• The Relative Calibration of Radial Velocity for LAMOST Medium Resolution Stellar Spectra
• Main-sequence Turnoff Stars as Probes of the Ancient Galactic Relic: Chemo-dynamical Analysis of a Pilot Sample
• Concerning Li-rich status of KIC~9821622: A Kepler field RGB star reported as Li-rich Giant
• Benchmark stars, benchmark spectrographs: Detailed spectroscopic comparison of ESPRESSO, PEPSI, and HARPS data for Gaia benchmark stars
• The Gaia-ESO Survey: new spectroscopic binaries in the Milky Way
• The Nephele ecosystem: stars, globular clusters, and stellar streams associated with the progenitor galaxy of $\omega$ Centauri
• Minimum-entropy constraints on galactic potentials
• Full abundance study of two newly discovered barium giants
• The evolution of velocity dispersion in the Sco-Cen OB association
• Survey for Distant Solar Twins (SDST) -- II. Design, observations and data
• Solar twins in Gaia DR3 GSP-Spec I. Building a large catalog of Solar twins with ages
• Chemical abundances of field halo stars -- Implications for the building blocks of the Milky Way
• Metallicity and absolute magnitude calibrations for F-G type main-sequence stars in the Gaia era
• Modelling the chemical evolution of the Milky Way
• Interrelations between Astrochemistry and Galactic Dynamics
• The metal-poorest tail of the Galactic halo: hypothesis on its origin from precise spectral analysis
• tonalli: an asexual genetic code to characterise APOGEE-2 stellar spectra. I. Validation with synthetic and solar spectra
• Stellar substructures in the Galactic disc and halo: Properties, origins, and evolution
• Disentanglement of the chemodynamical assembly: mapping the Milky Way disks
• Stellar multiplicity in the Milky Way Galaxy
• Gaia space mission and quasars
• Scalable Stellar Parameter Inference Using Python-based LASP: From CPU Optimization to GPU Acceleration
• Milky Way Mass Through Escape Velocity Curve from LAMOST K Giants
• 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
• Estimating Stellar Atmospheric Parameters and [α/Fe] for LAMOST O-M type Stars Using a Spectral Emulator
• Rediscovering the origins of the stellar halo with chemical tagging
• 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
• Calibration of the [C/N] and [Y/Mg] chemical clocks with asteroseismic ages from the TESS space mission
• The metal-poor tail of the APOGEE survey I. Uncovering [Fe/H] < -2.5 stars from the inner Galaxy to the Magellanic Clouds
• Two faces of Gaia-Sausage-Enceladus: Mining the chemical abundance space with graph attention networks
• HR-GO II: chemical abundances of low-$E$ retrograde dynamically-tagged-groups: Revealing Thamnos as a very metal-poor substructure
• Towards Understanding the Milky Way's Typicality: Assessing the Chemodynamics of M31's Bulge & Bar, Thick & Thin Discs
• Lessons learnt from the Solar neighbourhood and the Kepler field
• Studying Young Stars with Large Spectroscopic Surveys
• Investigating non-LTE abundances of Neodymium (Nd) in metal-poor FGK stars
• Turning Points in the Age-Metallicity Relations -- Created by Late Satellite Infall and Enhanced by Radial Migration
• Unravelling the role of merger histories in the population of In situ stars: linking IllustrisTNG cosmological simulation to H3 survey
• The AMBRE Project: Line-broadening and stellar rotation of ESO/FEROS archived spectra
• LRPayne: Stellar parameters and abundances from low-resolution spectra
• A method to derive self-consistent NLTE astrophysical parameters for 4 million high-resolution 4MOST stellar spectra in half a day with invertible neural networks
• SDSS-IV MaStar: Determination of Stellar Parameters Using Bayesian Averaging
• Probing the Milky Way Halo with RR Lyrae Stars from Gaia Data Release 3
• Searching for and characterizing halo substructures with the GALAH DR4 survey
• J-PLUS Reconstructing the Milky Way Disc's star formation history with twelve-filter photometry
• Gaia-Sausage-Enceladus: Lithium evolution from early red-giant-branch and main-sequence stars
• The GALAH Survey: A New Sample of Extremely Metal-Poor Stars Using A Machine Learning Classification Algorithm
• Purveyors of fine halos III. Chemical abundance analysis of a potential omega Cen associate
• Zeta-Payne: a fully automated spectrum analysis algorithm for the Milky Way Mapper program of the SDSS-V survey
• Tracing Milky Way substructure with an RR Lyrae hierarchical clustering forest
• Chemical Tagging of FGK Stars: Testing Membership to Young Stellar Kinematics Groups
• The GALAH Survey: Neutron-Capture Elemental Abundances for 350,000 Gaia-RVS spectra and the Chemodynamics of Accreted Structures
• Functional Data Analysis for Extracting the Intrinsic Dimensionality of Spectra: Application to Chemical Homogeneity in the Open Cluster M67
• Estimating stellar atmospheric parameters and elemental abundances using fully connected residual network
• Disruption of a Giant: Spectroscopic Identification of Members in the Periphery and Tidal Tails of $\omega$ Centauri
• 3D elemental abundances of stars at formation across the histories of Milky Way-mass galaxies in the FIRE simulations
• Wrinkles in Time. II. Stellar Age Trends in Kinematic Signatures from Transient Spiral Structure
• The SAPP pipeline for the determination of stellar abundances and atmospheric parameters of stars in the core program of the PLATO mission
• PISP: Projected-Space Inference of Stellar Parameters
• Refined M-type Star Catalog from LAMOST DR10: Measurements of Radial Velocities, $T_{\text{eff}}$, log $g$, [M/H] and [$\alpha$/M]
• Towards model-free stellar chemical abundances. Potential applications in the search for chemically peculiar stars in large spectroscopic surveys
• The DORCHA suite: nature, nurture, and the phase space distribution of the Milky Way's high redshift progenitors today
• Playing CHESS with stars. I. Search for similar stars in large spectroscopic data sets