4.7 Article

Exploring the diversity and similarity of radially anisotropic Milky Way-like stellar haloes: implications for disrupted dwarf galaxy searches

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Astronomy & Astrophysics

Dynamics of stellar disc tilting from satellite mergers

Benjamin C. Dodge et al.

Summary: The tilting of the Milky Way's stellar disc can be greatly influenced by infalling satellite galaxies and their tidal debris. This study uses N-body simulations to investigate the dynamics of disc tilting in a Milky Way-like host galaxy, considering satellite virial mass, initial position, and orbit as variables. The results suggest that the Galactic disc may still be tilting due to recent mergers, such as Gaia-Sausage-Enceladus, which has important implications for terrestrial direct detection experiments.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

Article Astronomy & Astrophysics

The Pristine Inner Galaxy Survey (PIGS) - V. A chemo-dynamical investigation of the early assembly of the Milky Way with the most metal-poor stars in the bulge

Federico Sestito et al.

Summary: The investigation of metal-poor stars in the Galactic bulge gives insights into the early assembly and evolution of the Milky Way. A chemo-dynamical analysis of 17 very metal-poor stars from the Pristine Inner Galaxy Survey revealed their similarity to stars in the Galactic halo. Orbits calculated from Gaia EDR3 data suggest that these stars were part of the earliest Galactic assembly. Some stars show evidence of ancient globular clusters in the inner Galaxy, while others indicate formation in a system polluted by low-mass supernovae. The study also highlights the existence of lower-metallicity globular clusters in the early Universe.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

Article Astronomy & Astrophysics

A comparative analysis of the chemical compositions of Gaia-Enceladus/Sausage and Milky Way satellites using APOGEE

Laura Fernandes et al.

Summary: This study contrasts the chemical composition of the newly discovered Gaia Enceladus/Sausage system (GE/S) with 10 Milky Way (MW) dwarf satellite galaxies using data from the 17th data release of the Apache Point Observatory Galactic Evolution Experiment (APOGEE 2). The main focus is on the stellar population distributions of these systems in the [Mg/Fe]-[Fe/H] and [Mg/Mn]-[Al/Fe] planes, which are commonly used for chemical diagnosis and differentiating dwarf galaxies from in situ populations. The research shows that the GE/S sample, defined purely based on orbital parameters, falls mostly within the locus of 'accreted' stellar populations in chemical space, indicating early quenching of star formation in GE/S. Stars in the metal-rich end of MW satellite populations have lower [Mg/Mn] compared to their GE/S counterparts due to a more protracted history of star formation. The study also finds that the direction of the metallicity gradient in the [Mg/Mn]-[Al/Fe] plane of dwarf galaxies serves as an indicator of the system's early star formation rate.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

Article Astronomy & Astrophysics

The chemical characterization of halo substructure in the Milky Way based on APOGEE

Danny Horta et al.

Summary: Galactic haloes in a ?-CDM universe contain debris from cannibalized dwarf galaxies that can provide information on the assembly history of the Galaxy. This study examines the chemical properties of various halo substructures and compares them to in situ populations and known satellite galaxies. The findings suggest different formation scenarios for different substructures and reveal a possible common origin for some of them.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

Article Astronomy & Astrophysics

A Swing of the Pendulum: The Chemodynamics of the Local Stellar Halo Indicate Contributions from Several Radial Merger Events

Thomas Donlon II et al.

Summary: We find that the chemical abundances and dynamics of APOGEE and GALAH stars in the local stellar halo do not support the idea that the inner halo is primarily formed by a single ancient merger event. Instead, multiple chemical evolution paths with distinct dynamics are present. We identify four components in the local stellar halo: Virgo Radial Merger (VRM), Cronus, Nereus, and Thamnos. The different substructures within the halo have implications for the selection of stars and their apparent chemodynamic properties.

ASTROPHYSICAL JOURNAL (2023)

Article Astronomy & Astrophysics

DESI Observations of the Andromeda Galaxy: Revealing the Immigration History of Our Nearest Neighbor

Arjun Dey et al.

Summary: We present observations of the inner halo of M31, revealing detailed kinematics of a recent galactic immigration event. The results show coherent kinematic structures in positions and velocities of individual stars, suggesting the substructure in the inner halo is a result of a single event 1-2 billion years ago. The study also finds metal-rich stars in the detected substructures, indicating an extended star formation history of the immigrating galaxy. The results have important implications for studying galactic scale stars and immigration histories of galaxies.

ASTROPHYSICAL JOURNAL (2023)

Article Astronomy & Astrophysics

VINTERGATAN-GM: The cosmological imprints of early mergers on Milky-Way-mass galaxies

Martin P. Rey et al.

Summary: This study presents cosmological simulations to investigate how the mass ratio of a merger affects the morphology and chemical dynamics of halo stars in Milky-Way mass galaxies. The results show that the merger history affects the galaxy's structure but has minimal impact on the chemodynamical features of the halo.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

Article Astronomy & Astrophysics

The Global Dynamical Atlas of the Milky Way Mergers: Constraints from Gaia EDR3-based Orbits of Globular Clusters, Stellar Streams, and Satellite Galaxies

Khyati Malhan et al.

Summary: We uncover the merging process of the Milky Way halo by detecting groupings of globular clusters, stellar streams, and satellite galaxies in action space. We find a total of 6 mergers, including a new one, and discover that the most-metal-poor streams are associated with one of the mergers.

ASTROPHYSICAL JOURNAL (2022)

Article Astronomy & Astrophysics

Evidence from Disrupted Halo Dwarfs that r-process Enrichment via Neutron Star Mergers is Delayed by ≳500 Myr

Rohan P. Naidu et al.

Summary: The astrophysical origins of r-process elements are still unknown. Neutron star mergers and certain types of core-collapse supernovae are leading candidates. The study found that the disrupted dwarfs Kraken and GSE, with similar masses but different star formation durations, provide an opportunity to investigate r-process enrichment. The results suggest that both neutron star mergers and core-collapse supernovae contribute to the enrichment of r-process elements.

ASTROPHYSICAL JOURNAL LETTERS (2022)

Article Astronomy & Astrophysics

From dawn till disc: Milky Way's turbulent youth revealed by the APOGEE plus Gaia data

Vasily Belokurov et al.

Summary: This study uses accurate measurements of aluminium abundance to select a pure sample of stars born in the Milky Way with specific metallicity range. The low-metallicity in-situ component, named Aurora, exhibits distinct kinematic and chemical properties. The observed kinematic transformation and change in chemical abundances suggest a rapid formation of the Milky Way disc. The results also imply that these trends are common in the early evolution of Milky Way-sized galaxies.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2022)

Article Astronomy & Astrophysics

Merger-induced galaxy transformations in the artemis simulations

Adam M. Dillamore et al.

Summary: By using high-resolution cosmological simulations, this study investigates various dynamical transformations of Milky Way-like galaxies during mergers, including the pathways of star clusters, changes in dark matter haloes, shifts in angular momentum axes, and the origin of in situ retrograde stars.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2022)

Article Astronomy & Astrophysics

The synchronized dance of the magellanic clouds' star formation history

P. Massana et al.

Summary: We used the SMASH survey to quantitatively derive the star formation history of the Small Magellanic Cloud (SMC) and found five distinctive peaks of star formation in the last 3.5 billion years. We compared the star formation history of the SMC with that of the Large Magellanic Cloud (LMC) and found clear synchronicity. Tidal interactions between the two galaxies have played an important role in their evolution for the past 3.5 billion years.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2022)

Article Astronomy & Astrophysics

A Tilt in the Dark Matter Halo of the Galaxy

Jiwon Jesse Han et al.

Summary: This paper studies the ancient merger debris in the stellar halo, finding that long-lived structures HAC and VOD are associated with GSE, and the dark matter halo of the Galaxy is tilted and aligned with HAC-VOD. Such halo-disk misalignment is common in modern cosmological simulations. In addition, the relationship between the local and global stellar halo is analyzed.

ASTROPHYSICAL JOURNAL (2022)

Article Astronomy & Astrophysics

The Local Stellar Halo is Not Dominated by a Single Radial Merger Event

Thomas Donlon et al.

Summary: We used nearby halo dwarf stars with photometrically determined metallicities to identify local halo substructures. We found multiple components, including the retrograde Virgo Radial Merger (VRM), the nonrotating Nereus, and the corotating Cronus. We also observed the Nyx Stream, metal-poor halo stars, and a disk/Splash component. The Gaia Sausage velocity structure is a combination of these identified components.

ASTROPHYSICAL JOURNAL LETTERS (2022)

Article Astronomy & Astrophysics

Linking the brightest stellar streams with the accretion history of Milky Way like galaxies

Alex Vera-Casanova et al.

Summary: According to current galaxy-formation models, mergers and interactions play a crucial role in shaping present-day galaxies. This study used simulations to investigate the presence of stellar streams in Milky Way mass haloes, finding that no stream signatures were detected when the limiting magnitude was below 25 mag arcsec(-2). However, the detection of streams significantly increased between 28 and 29 mag arcsec(-2).

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2022)

Article Astronomy & Astrophysics

Milky Way's Eccentric Constituents with Gaia, APOGEE, and GALAH

G. C. Myeong et al.

Summary: We present the results of an unsupervised decomposition of the local stellar halo using abundance measurements from APOGEE DR17 and GALAH DR3. Our analysis reveals that only four independent components dominate the halo in the solar neighborhood, including one newly identified component called Eos. We find that the GS/E is the main progenitor of the Galactic stellar halo, and Aurora is consistent with the chemical properties of the Heracles merger. The presence of Eos suggests that at least some of the outer thin disk of the Galaxy started its evolution in the gas polluted by the GS/E.

ASTROPHYSICAL JOURNAL (2022)

Article Astronomy & Astrophysics

The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package*

Adrian M. Price-Whelan et al.

Summary: The Astropy Project is an open-source Python package that provides commonly needed functionality to the astronomical community. Its core package, astropy, serves as the foundation for specialized projects and packages. This article summarizes the key features of the core package and provides updates on the project. It also discusses the connections with astronomical observatories and missions, and the future outlook and challenges of the Astropy Project.

ASTROPHYSICAL JOURNAL (2022)

Article Astronomy & Astrophysics

Gastro Library. I. The Simulated Chemodynamical Properties of Several Gaia-Sausage-Enceladus-like Stellar Halos

Joao A. S. Amarante et al.

Summary: This study simulates the merger events of the Milky Way and finds that supernova feedback influences the behavior and chemistry of satellites, high-energy stars have low metallicity, the most bound stars in the models are more metal-rich than observed, and the models can explain the common origin of other substructures.

ASTROPHYSICAL JOURNAL (2022)

Article Astronomy & Astrophysics

Possibilities and Limitations of Kinematically Identifying Stars from Accreted Ultra-faint Dwarf Galaxies

Kaley Brauer et al.

Summary: Research shows that clustering algorithms have limited success in recovering accreted UFD remnants in the Milky Way, with only up to 6% of UFD remnants being recoverable. Real clusters tend to have higher median energy and angular momentum, providing a way to distinguish real from fake clusters. Incorporating chemical tagging is recommended to improve clustering results.

ASTROPHYSICAL JOURNAL (2022)

Article Astronomy & Astrophysics

The Unmixed Debris of Gaia-Sausage/Enceladus in the Form of a Pair of Halo Stellar Overdensities

Helio D. Perottoni et al.

Summary: This study finds that in the first billion years after its formation, the Galaxy underwent several mergers with dwarf satellites of various masses. The debris of Gaia-Sausage/Enceladus (GSE), the galaxy responsible for the last significant merger of the Milky Way, dominates the inner halo and has been suggested to be the progenitor of both the Hercules-Aquila Cloud (HAC) and Virgo Overdensity (VOD). The research shows that HAC, VOD, and GSE have comparable orbital eccentricity distributions and metallicity distribution functions, indicating a common origin.

ASTROPHYSICAL JOURNAL LETTERS (2022)

Article Astronomy & Astrophysics

Observing EAGLE galaxies with JWST: predictions for Milky Way progenitors and their building blocks

Tilly A. Evans et al.

Summary: Predictions derived from the EAGLE cosmological hydrodynamical simulations suggest that the James Webb Space Telescope (JWST) is capable of detecting galaxies at high redshifts and studying their properties. Specifically, the study focuses on galaxies resembling the Milky Way and its major components.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2022)

Article Astronomy & Astrophysics

The impact of two massive early accretion events in a Milky Way-like galaxy: repercussions for the buildup of the stellar disc and halo

Matthew D. A. Orkney et al.

Summary: We have identified and characterized a Milky Way-like realization from the Auriga simulations, involving two consecutive massive mergers similar to the reported Kraken and Gaia-Sausage-Enceladus. These mergers have significant impacts on the mass distribution, chemistry, and star formation history of the Milky Way, providing predictions for future observations.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2022)

Article Astronomy & Astrophysics

The Stellar Halo of the Galaxy is Tilted and Doubly Broken

Jiwon Jesse Han et al.

Summary: Modern Galactic surveys have identified an ancient merger, known as Gaia-Sausage-Enceladus (GSE), that dominates the stellar halo of our galaxy. Through the use of chemical abundances and kinematics, researchers have inferred the density profile of the accreted component of the stellar halo and discovered a triaxial ellipsoid tilted 25 degrees above the Galactic plane. This finding provides new insights into the initial conditions and evolution of the GSE merger, as well as implications for the dynamical mass modeling of the galaxy and dark matter detection experiments.

ASTRONOMICAL JOURNAL (2022)

Article Astronomy & Astrophysics

Proper Motions, Orbits, and Tidal Influences of Milky Way Dwarf Spheroidal Galaxies

Andrew B. Pace et al.

Summary: This study combines Gaia early data release 3 with accurate photometry to measure the systemic proper motion of 52 dwarf spheroidal satellite galaxies of the Milky Way, revealing new insights and offering suggestions for future research.

ASTROPHYSICAL JOURNAL (2022)

Article Astronomy & Astrophysics

The Poor Old Heart of the Milky Way

Hans-Walter Rix et al.

Summary: Using data from the Gaia Data Release 3, we have constructed a sample of 2 million bright giant stars, revealing an ancient and metal-poor population in the Milky Way. These stars have a spatial distribution concentrated around the Galactic center, with most orbits confined to the inner Galaxy. They likely predate the oldest disk population, implying they formed in the early stages of the Milky Way.

ASTROPHYSICAL JOURNAL (2022)

Article Astronomy & Astrophysics

The Pristine Inner Galaxy Survey (PIGS) - V. A chemo-dynamical investigation of the early assembly of the Milky Way with the most metal-poor stars in the bulge

Federico Sestito et al.

Summary: The investigation of metal-poor stars in the Galactic bulge provides insights into the early assembly and evolution of the Milky Way. The study suggests the presence of metal-poor stars similar to those in the Galactic halo in the bulge, as well as hints at the existence of ancient dissolved globular clusters in the inner Galaxy.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2022)

Article Astronomy & Astrophysics

Reconstructing the Last Major Merger of the Milky Way with the H3 Survey

Rohan P. Naidu et al.

Summary: Several lines of evidence suggest that the Milky Way underwent a major merger with the Gaia-Sausage-Enceladus galaxy at z similar to 2. By using data analysis and simulations, researchers have revealed the process of GSE galaxy entering the Milky Way on a retrograde orbit, reconstructed the merger event, and made predictions about the shape of the inner halo and retrograde streams in the outer halo.

ASTROPHYSICAL JOURNAL (2021)

Article Astronomy & Astrophysics

Evidence from APOGEE for the presence of a major building block of the halo buried in the inner Galaxy

Danny Horta et al.

Summary: Evidence from APOGEE suggests the presence of a new metal-poor stellar structure near the Galactic Center, possibly associated with an accretion event in the early Milky Way. This structure, termed the Inner Galaxy Structure (IGS), displays chemical composition similarities to low-mass Milky Way satellites and is dynamically detached from more metal-rich populations in the inner Galaxy. Comparisons with cosmological simulations indicate a progenitor system for the IGS with a stellar mass approximately double that of the Gaia-Enceladus/Sausage system. The ratio of accreted to in situ stars within the metal-poor bulge sample is estimated to be between 1:3 and 1:2, in line with predictions from various cosmological numerical simulations.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2021)

Article Astronomy & Astrophysics

HAYDN High-precision AsteroseismologY of DeNse stellar fields

Andrea Miglio et al.

Summary: In the past decade, the Kepler and CoRoT missions have shown the potential of asteroseismology as a powerful tool for testing stellar physics and characterizing stellar properties. Advocating for a new space mission dedicated to collecting high-precision photometric data could lead to breakthroughs in stellar astrophysics.

EXPERIMENTAL ASTRONOMY (2021)

Article Astronomy & Astrophysics

VINTERGATAN III: how to reset the metallicity of the Milky Way

Florent Renaud et al.

Summary: The study presents a new scenario for the onset of star formation at the metal-poor end of the low-alpha/Fe sequence in a Milky Way-like galaxy, fuelled by two distinct gas flows with differing chemical content. This tilting disc scenario is likely to be common in Milky Way-like galaxies, with the low-alpha/Fe sequence being populated in situ simultaneously from two formation channels. The scenario contrasts with purely sequential scenarios for the assembly of the Milky Way disc and could be tested observationally.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2021)

Article Astronomy & Astrophysics

VINTERGATAN-II. The history of the Milky Way told by its mergers

Florent Renaud et al.

Summary: The study shows that the initial growth phase of galaxy evolution, dominated by repeated major mergers, leads to the formation of a thick, kinematically hot disc with high-[alpha/Fe] stars. The simulated galaxy displays little overlap between in situ and accreted populations for any given chemical composition. The cessation of merger activity promotes the in situ formation of stars in the low-[alpha/Fe] regime, establishing chemically bimodal thin and thick discs.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2021)

Article Astronomy & Astrophysics

Determining the full satellite population of a Milky Way-mass halo in a highly resolved cosmological hydrodynamic simulation

Robert J. J. Grand et al.

Summary: The study reveals that there are five times as many satellite galaxies in high resolution simulations compared to standard resolution simulations, leading to a more centrally concentrated radial distribution of satellites. Additionally, the simulation successfully forms ultra-faint galaxies and reproduces the stellar velocity dispersion, half-light radii, and V-band luminosities of observed Milky Way and Local Group dwarf galaxies across six orders of magnitude in luminosity.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2021)

Article Astronomy & Astrophysics

Structural and photometric properties of barred galaxies from the Auriga cosmological simulations

Guillermo Blazquez-Calero et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Article Astronomy & Astrophysics

Weighing the stellar constituents of the galactic halo with APOGEE red giant stars

J. Ted Mackereth et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Article Astronomy & Astrophysics

Ages and kinematics of chemically selected, accreted Milky Way halo stars

Payel Das et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Article Astronomy & Astrophysics

The biggest splash

Vasily Belokurov et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Article Astronomy & Astrophysics

Chemodynamics of barred galaxies in cosmological simulations: On the Milky Way's quiescent merger history and in-situ bulge

F. Fragkoudi et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Article Astronomy & Astrophysics

The SkyMapper-Gaia RVS view of the Gaia-Enceladus-Sausage - an investigation of the metallicity and mass of the Milky Way's last major merger

Diane K. Feuillet et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Article Astronomy & Astrophysics

The dual origin of the Galactic thick disc and halo from the gas-rich Gaia-Enceladus Sausage merger

Robert J. J. Grand et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Article Astronomy & Astrophysics

A tale of two populations: surviving and destroyed dwarf galaxies and the build-up of the Milky Way's stellar halo

Azadeh Fattahi et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Article Astronomy & Astrophysics

Kraken reveals itself - the merger history of the Milky Way reconstructed with the E-MOSAICS simulations

J. M. Diederik Kruijssen et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Article Astronomy & Astrophysics

Timing the Early Assembly of the Milky Way with the H3 Survey

Ana Bonaca et al.

ASTROPHYSICAL JOURNAL LETTERS (2020)

Article Astronomy & Astrophysics

Evidence from the H3 Survey That the Stellar Halo Is Entirely Comprised of Substructure

Rohan P. Naidu et al.

ASTROPHYSICAL JOURNAL (2020)

Article Astronomy & Astrophysics

A Low-mass Stellar-debris Stream Associated with a Globular Cluster Pair in the Halo

Zhen Yuan et al.

ASTROPHYSICAL JOURNAL LETTERS (2020)

Article Astronomy & Astrophysics

The Pristine Inner Galaxy Survey (PIGS) I: tracing the kinematics of metal-poor stars in the Galactic bulge

A. Arentsen et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Article Astronomy & Astrophysics

The formation and assembly history of the Milky Way revealed by its globular cluster population

J. M. Diederik Kruijssen et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

The Auriga stellar haloes: connecting stellar population properties with accretion and merging history

Antonela Monachesi et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

The halo's ancient metal-rich progenitor revealed with BHB stars

Lachlan Lancaster et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

The COMBS survey - I. Chemical origins of metal-poor stars in the Galactic bulge

Madeline Lucey et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

Evidence for two early accretion events that built the Milky Way stellar halo

G. C. Myeong et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

Uncovering the birth of the Milky Way through accurate stellar ages with Gaia

Carme Gallart et al.

NATURE ASTRONOMY (2019)

Article Astronomy & Astrophysics

The prevalence of pseudo-bulges in the Auriga simulations

Ignacio D. Gargiulo et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

Drivers of disc tilting I: correlations and possible drivers for Milky Way analogues

Samuel W. F. Earp et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

Multiple retrograde substructures in the Galactic halo: A shattered view of Galactic history

Helmer H. Koppelman et al.

ASTRONOMY & ASTROPHYSICS (2019)

Article Astronomy & Astrophysics

Dark matter halo shapes in the Auriga simulations

Jesus Prada et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

The origin of galactic metal-rich stellar halo components with highly eccentric orbits

Azadeh Fattahi et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

Common origin for Hercules-Aquila and Virgo Clouds in Gaia DR2

Iulia T. Simion et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

The shape of the Galactic halo with Gaia DR2 RR Lyrae. Anatomy of an ancient major merger

Giuliano Iorio et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

AGAMA: action-based galaxy modelling architecture

Eugene Vasiliev

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

The origin of accreted stellar halo populations in the Milky Way using APOGEE, Gaia, and the EAGLE simulations

J. Ted Mackereth et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

The Fall of a Giant. Chemical evolution of Enceladus, alias the Gaia Sausage

Fiorenzo Vincenzo et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

Article Astronomy & Astrophysics

A Sequoia in the Garden: FSR 1758-Dwarf Galaxy or Giant Globular Cluster?

Rodolfo H. Barba et al.

ASTROPHYSICAL JOURNAL LETTERS (2019)

Article Astronomy & Astrophysics

A Gaia-Enceladus Analog in the EAGLE Simulation: Insights into the Early Evolution of the Milky Way

Lucas A. Bignone et al.

ASTROPHYSICAL JOURNAL LETTERS (2019)

Article Astronomy & Astrophysics

Origin of chemically distinct discs in the Auriga cosmological simulations

Robert J. J. Grand et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2018)

Article Astronomy & Astrophysics

Gaia Data Release 2. Observational Hertzsprung-Russell diagrams

C. Babusiaux et al.

ASTRONOMY & ASTROPHYSICS (2018)

Article Astronomy & Astrophysics

Co-formation of the disc and the stellar halo

V. Belokurov et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2018)

Article Astronomy & Astrophysics

On the relevance of chaos for halo stars in the solar neighbourhood II

Nicolas P. Maffione et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2018)

Article Astronomy & Astrophysics

Where are the most ancient stars in the Milky Way?

Kareem El-Badry et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2018)

Article Astronomy & Astrophysics

Gaia Data Release 2. Observational Hertzsprung-Russell diagrams

C. Babusiaux et al.

ASTRONOMY & ASTROPHYSICS (2018)

Article Astronomy & Astrophysics

One Large Blob and Many Streams Frosting the nearby Stellar Halo in Gaia DR2

Helmer Koppelman et al.

ASTROPHYSICAL JOURNAL LETTERS (2018)

Article Astronomy & Astrophysics

The Milky Way Halo in Action Space

G. C. Myeong et al.

ASTROPHYSICAL JOURNAL LETTERS (2018)

Article Astronomy & Astrophysics

Apocenter Pile-up: Origin of the Stellar Halo Density Break

Alis J. Deason et al.

ASTROPHYSICAL JOURNAL LETTERS (2018)

Article Astronomy & Astrophysics

The oldest and most metal-poor stars in the APOSTLE Local Group simulations

Else Starkenburg et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2017)

Article Astronomy & Astrophysics

Warps and waves in the stellar discs of the Auriga cosmological simulations

Facundo A. Gomez et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2017)

Article Astronomy & Astrophysics

Contributions to the accreted stellar halo: an atlas of stellar deposition

N. C. Amorisco

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2017)

Article Astronomy & Astrophysics

Identifying true satellites of the Magellanic Clouds

Laura V. Sales et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2017)

Article Astronomy & Astrophysics

Lessons from the Auriga discs: the hunt for the Milky Way's ex situ disc is not yet over

Facundo A. Gomez et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2017)

Article Astronomy & Astrophysics

Baryonic impact on the dark matter orbital properties of Milky Way-sized haloes

Qirong Zhu et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2017)

Article Astronomy & Astrophysics

The Auriga Project: the properties and formation mechanisms of disc galaxies across cosmic time

Robert J. J. Grand et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2017)

Article Astronomy & Astrophysics

On the kinematic detection of accreted streams in the Gaia era: a cautionary tale

I. Jean-Baptiste et al.

ASTRONOMY & ASTROPHYSICS (2017)

Article Astronomy & Astrophysics

The Outer Halo of the Milky Way as Probed by RR Lyr Variables from the Palomar Transient Facility

Judith G. Cohen et al.

ASTROPHYSICAL JOURNAL (2017)

Article Astronomy & Astrophysics

PLATO as it is: A legacy mission for Galactic archaeology

A. Miglio et al.

ASTRONOMISCHE NACHRICHTEN (2017)

Article Astronomy & Astrophysics

Chaotic dispersal of tidal debris

Adrian M. Price-Whelan et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)

Article Astronomy & Astrophysics

Gaia Data Release 1 Summary of the astrometric, photometric, and survey properties

A. G. A. Brown et al.

ASTRONOMY & ASTROPHYSICS (2016)

Article Astronomy & Astrophysics

Evolution of galaxy shapes from prolate to oblate through compaction events

Matteo Tomassetti et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)

Article Astronomy & Astrophysics

The EMBLA survey - metal-poor stars in the Galactic bulge

Louise M. Howes et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)

Article Astronomy & Astrophysics

Stray, swing and scatter: angular momentum evolution of orbits and streams in aspherical potentials

Denis Erkal et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)

Article Astronomy & Astrophysics

A Magellanic origin of the DES dwarfs

P. Jethwa et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)

Article Astronomy & Astrophysics

Gaia Data Release 1 Summary of the astrometric, photometric, and survey properties

A. G. A. Brown et al.

ASTRONOMY & ASTROPHYSICS (2016)

Article Astronomy & Astrophysics

DISPERSAL OF TIDAL DEBRIS IN A MILKY-WAY-SIZED DARK MATTER HALO

Wayne Ngan et al.

ASTROPHYSICAL JOURNAL (2016)

Article Astronomy & Astrophysics

The evolution of streams in a time-dependent potential

Hans J. T. Buist et al.

ASTRONOMY & ASTROPHYSICS (2015)

Article Astronomy & Astrophysics

On the relevance of chaos for halo stars in the solar neighbourhood

N. P. Maffione et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2015)

Article Astronomy & Astrophysics

Internal alignments of red versus blue discs in dark matter haloes

Victor P. Debattista et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2015)

Article Astronomy & Astrophysics

Formation of in situ stellar haloes in Milky Way-mass galaxies

Andrew P. Cooper et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2015)

Article Astronomy & Astrophysics

The evolution of streams in a time-dependent potential

Hans J. T. Buist et al.

ASTRONOMY & ASTROPHYSICS (2015)

Article Astronomy & Astrophysics

The EAGLE project: simulating the evolution and assembly of galaxies and their environments

Joop Schaye et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2015)

Article Astronomy & Astrophysics

A STELLAR TIDAL STREAM AROUND THE WHALE GALAXY, NGC 4631

David Martinez-Delgado et al.

ASTRONOMICAL JOURNAL (2015)

Article Astronomy & Astrophysics

HUNTING THE MOST DISTANT STARS IN THE MILKY WAY: METHODS AND INITIAL RESULTS

John J. Bochanski et al.

ASTRONOMICAL JOURNAL (2014)

Article Astronomy & Astrophysics

Planck 2013 results. XVI. Cosmological parameters

P. A. R. Ade et al.

ASTRONOMY & ASTROPHYSICS (2014)

Article Astronomy & Astrophysics

The formation of disc galaxies in high-resolution moving-mesh cosmological simulations

Federico Marinacci et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2014)

Article Astronomy & Astrophysics

Introducing the Illustris project: the evolution of galaxy populations across cosmic time

Shy Genel et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2014)

Article Astronomy & Astrophysics

THE BEST AND BRIGHTEST METAL-POOR STARS

Kevin C. Schlaufman et al.

ASTROPHYSICAL JOURNAL (2014)

Article Astronomy & Astrophysics

BROKEN AND UNBROKEN: THE MILKY WAY AND M31 STELLAR HALOS

A. J. Deason et al.

ASTROPHYSICAL JOURNAL (2013)

Article Astronomy & Astrophysics

Satellites and haloes of dwarf galaxies

Laura V. Sales et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2013)

Article Astronomy & Astrophysics

Galactic star formation and accretion histories from matching galaxies to dark matter haloes

Benjamin P. Moster et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2013)

Article Astronomy & Astrophysics

A new way of setting the phases for cosmological multiscale Gaussian initial conditions

Adrian Jenkins

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2013)

Article Astronomy & Astrophysics

Streams in the Aquarius stellar haloes

Facundo A. Gomez et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2013)

Article Astronomy & Astrophysics

A model for cosmological simulations of galaxy formation physics

Mark Vogelsberger et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2013)

Article Astronomy & Astrophysics

ARGOS - IV. The kinematics of the Milky Way bulge

M. Ness et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2013)

Article Astronomy & Astrophysics

Stellar discs in Aquarius dark matter haloes

Jackson DeBuhr et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2012)

Article Astronomy & Astrophysics

The cold veil of the Milky Way stellar halo

A. J. Deason et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2012)

Article Astronomy & Astrophysics

Cosmological simulations of the formation of the stellar haloes around disc galaxies

A. S. Font et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2011)

Article Astronomy & Astrophysics

Two distinct halo populations in the solar neighborhood Evidence from stellar abundance ratios and kinematics

P. E. Nissen et al.

ASTRONOMY & ASTROPHYSICS (2010)

Article Astronomy & Astrophysics

Insights on the Milky Way bulge formation from the correlations between kinematics and metallicity

C. Babusiaux et al.

ASTRONOMY & ASTROPHYSICS (2010)

Article Astronomy & Astrophysics

THE SPHERICALIZATION OF DARK MATTER HALOS BY GALAXY DISKS

Stelios Kazantzidis et al.

ASTROPHYSICAL JOURNAL LETTERS (2010)

Review Astronomy & Astrophysics

E pur si muove: Galilean-invariant cosmological hydrodynamical simulations on a moving mesh

Volker Springel

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2010)

Article Astronomy & Astrophysics

Galactic stellar haloes in the CDM model

A. P. Cooper et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2010)

Article Astronomy & Astrophysics

Star-Formation Histories, Abundances, and Kinematics of Dwarf Galaxies in the Local Group

Eline Tolstoy et al.

Annual Review of Astronomy and Astrophysics (2009)

Review Astronomy & Astrophysics

The Chemical Composition of the Sun

Martin Asplund et al.

ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, VOL 47 (2009)

Article Astronomy & Astrophysics

THE GHOST OF A DWARF GALAXY: FOSSILS OF THE HIERARCHICAL FORMATION OF THE NEARBY SPIRAL GALAXY NGC 5907

David Martinez-Delgado et al.

ASTROPHYSICAL JOURNAL (2008)

Article Astronomy & Astrophysics

The accretion origin of the Milky Way's stellar halo

Eric F. Bell et al.

ASTROPHYSICAL JOURNAL (2008)

Review Astronomy & Astrophysics

Thin, thick and dark discs in ΛCDM

J. I. Read et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2008)

Review Astronomy & Astrophysics

Simulations of minor mergers - I. General properties of thick discs

Alvaro Villalobos et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2008)

Article Astronomy & Astrophysics

An orphan in the Field of Streams

V. Belokurov et al.

ASTROPHYSICAL JOURNAL (2007)

Article Astronomy & Astrophysics

The Hercules-Aquila cloud

V. Belokurov et al.

ASTROPHYSICAL JOURNAL (2007)

Article Astronomy & Astrophysics

Growing live disks within cosmologically assembling asymmetric halos: Washing out the halo prolateness

Ingo Berentzen et al.

ASTROPHYSICAL JOURNAL (2006)

Article Astronomy & Astrophysics

Modeling tidal streams in evolving dark matter halos

Jorge Penarrubia et al.

ASTROPHYSICAL JOURNAL (2006)

Article Astronomy & Astrophysics

The field of streams: Sagittarius and its siblings

V. Belokurov et al.

ASTROPHYSICAL JOURNAL (2006)

Review Astronomy & Astrophysics

The James Webb Space Telescope

Jonathan P. Gardner et al.

SPACE SCIENCE REVIEWS (2006)

Article Astronomy & Astrophysics

Tracing galaxy formation with stellar halos. I. Methods

JS Bullock et al.

ASTROPHYSICAL JOURNAL (2005)

Article Astronomy & Astrophysics

Resolved massive star clusters in the Milky Way and its satellites: Brightness profiles and a catalog of fundamental parameters

DE McLaughlin et al.

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES (2005)

Article Astronomy & Astrophysics

A cold dark matter, stellar feedback, and the galactic halo abundance pattern

B Robertson et al.

ASTROPHYSICAL JOURNAL (2005)

Article Multidisciplinary Sciences

Simulations of the formation, evolution and clustering of galaxies and quasars

V Springel et al.

NATURE (2005)

Article Astronomy & Astrophysics

Accretion relics in the solar neighbourhood:: debris from ωCen's parent galaxy

A Meza et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2005)

Review Astronomy & Astrophysics

Stellar chemical signatures and hierarchical galaxy formation

KA Venn et al.

ASTRONOMICAL JOURNAL (2004)

Article Astronomy & Astrophysics

The origin and tidal evolution of cuspy triaxial haloes

B Moore et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2004)

Article Astronomy & Astrophysics

The phase-space structure of cold dark matter haloes: insights into the Galactic halo

A Helmi et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2003)

Article Astronomy & Astrophysics

On the origin of high-eccentricity halo stars

CB Brook et al.

ASTROPHYSICS AND SPACE SCIENCE (2003)

Article Astronomy & Astrophysics

Tidal debris of dwarf spheroidals as a probe of structure formation models

L Mayer et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2002)

Article Astronomy & Astrophysics

Double starbursts triggered by mergers in hierarchical clustering scenarios

PB Tissera et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2002)

Article Astronomy & Astrophysics

Uncovering cold dark matter halo substructure with tidal streams

RA Ibata et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2002)

Review Astronomy & Astrophysics

Populating a cluster of galaxies -: I.: Results at z=0

V Springel et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2001)

Article Astronomy & Astrophysics

Mapping the substructure in the Galactic halo with the next generation of astrometric satellites

A Helmi et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2000)