Reionization and the abundance of galactic satellites

Abstract

One of the main challenges facing standard hierarchical structure formation models is that the predicted abundance of galactic subhalos with circular velocities of 10-30 km/s is an order of magnitude higher than the number of satellites actually observed within the Local Group. Using a simple model for the formation and evolution of dark halos, based on the extended Press-Schechter formalism and tested against N-body results, we show that the theoretical predictions can be reconciled with observations if gas accretion in low-mass halos is suppressed after the epoch of reionization. In this picture, the observed dwarf satellites correspond to the small fraction of halos that accreted substantial amounts of gas before reionization. The photoionization mechanism naturally explains why the discrepancy between predicted halos and observed satellites sets in at about 30 km/s, and for reasonable choices of the reionization redshift (z_re = 5-12) the model can reproduce both the amplitude and shape of the observed velocity function of galactic satellites. If this explanation is correct, then typical bright galaxy halos contain many low-mass dark matter subhalos. These might be detectable through their gravitational lensing effects, through their influence on stellar disks, or as dwarf satellites with very high mass-to-light ratios. This model also predicts a diffuse stellar component produced by large numbers of tidally disrupted dwarfs, perhaps sufficient to account for most of the Milky Way's stellar halo.

5 pages, 2 figures, Submitted to ApJ

References in corpus (5)

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• The dearth of halo dwarf galaxies: is there power on short scales?
• The Velocity Function of Galaxies
• Limits on the Gunn-Peterson Effect at z = 5
• Soft X-ray Absorption by High-Redshift Intergalactic Helium

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• Origin of Two Distinct Populations in Dwarf Spheroidal Galaxies
• Motivations for a Large Self-Interacting Dark Matter Cross Section from Milky Way Satellites
• Effects of Early Cosmic Reionization on the Substructure Problem in Galactic Halo
• An SDSS Survey For Resolved Milky Way Satellite Galaxies I: Detection Limits
• A Search for Ionized Gas in the Draco and Ursa Minor Dwarf Spheroidal Galaxies
• The little things matter: relating the abundance of ultrafaint satellites to the hosts' assembly history
• Cosmological simulations of dwarfs: the need for ISM physics beyond SN feedback alone
• The Next Generation Virgo Cluster Survey. VII. The intrinsic shapes of low-luminosity galaxies in the core of the Virgo cluster, and a comparison with the Local Group
• Size matters: the non-universal density profile of subhaloes in SPH simulations and implications for the Milky Way's dSphs
• Modified Dust and the Small Scale Crisis in CDM
• Comparing the Quenching Times of Faint M31 and Milky Way Satellite Galaxies
• Gravitational lensing as a probe of cold dark matter subhalos
• Detection of a Companion Lens Galaxy using the Mid-infrared Flux Ratios of the Gravitationally Lensed Quasar H1413+117
• The Halos and Environments of Nearby Galaxies (HERON) I: Imaging, Sample Characteristics, and Envelope Diameters
• Massive Milky Way Satellites in Cold and Warm Dark Matter: Dependence on Cosmology
• The Detection of Pure Dark Matter Objects with Bent Multiply Imaged Radio Jets
• The Evolution of Substructure in Galaxy, Group and Cluster Haloes III: Comparison with Simulations
• GRUMPY: a simple framework for realistic forward-modelling of dwarf galaxies
• Tucana B: A Potentially Isolated and Quenched Ultra-faint Dwarf Galaxy at D$\approx$1.4 Mpc
• The effect of low mass substructures on the Cusp lensing relation
• The Cosmic Evolution of Faint Satellite Galaxies as a Test of Galaxy Formation and the Nature of Dark Matter
• The LBT Satellites of Nearby Galaxies Survey (LBT-SONG): The Satellite Population of NGC 628
• Satellite dwarf galaxies: Stripped but not quenched
• A Predicted Correlation Between Age Gradient and Star Formation History in FIRE Dwarf Galaxies
• Mechanisms of Baryon Loss for Dark Satellites in Cosmological SPH Simulations
• Local Group dSph radio survey with ATCA (II): Non-thermal diffuse emission
• The effect of Warm Dark Matter on galaxy properties: constraints from the stellar mass function and the Tully-Fisher relation
• Gas in Simulations of High Redshift Galaxies and Minihalos
• Warm FIRE: Simulating Galaxy Formation with Resonant Sterile Neutrino Dark Matter
• Axino warm dark matter and ${\Omega }_b-{\Omega }_{DM}$ coincidence
• A Keck/DEIMOS spectroscopic survey of the faint M31 satellites And XV and And XVI
• On the stark difference in satellite distributions around the Milky Way and Andromeda
• The Cosmic Abundance of Classical Milky Way Satellites
• Substructure Lensing: Effects of Galaxies, Globular Clusters & Satellite Streams
• The velocity anisotropy of the Milky Way satellite system
• Subhalo statistics of galactic halos: beyond the resolution limit
• Small-scale shear: Peeling off diffuse subhalos with gravitational waves
• The Absence of Stars in Compact High-Velocity Clouds
• Eppur si muove: Positional and kinematic correlations of satellite pairs in the low Z universe
• On the common mass scale of the Milky Way satellites
• The Most Metal-poor Stars in the Magellanic Clouds are $r$-process Enhanced
• The star formation histories of dwarf galaxies in Local Group cosmological simulations
• Scaling Relations for Galaxies Prior to Reionization
• The Expected Mass Function for Low Mass Galaxies in a CDM Cosmology: Is There a Problem?
• Status of Cold Dark Matter Cosmology
• Satellites in MW-like hosts: Environment dependence and close pairs
• The infall of dwarf satellite galaxies are influenced by their host's massive accretions
• Damped Lyman alpha systems and galaxy formation models - II. High ions and Lyman limit systems
• Model for Gravitational Interaction between Dark Matter and Baryons
• Dependence of the Local Reionization History on Halo Mass and Environment: Did Virgo Reionize the Local Group?
• A unified solution to the small scale problems of the $\Lambda$CDM model II: introducing parent-satellite interaction
• Chemical and stellar properties of star-forming dwarf galaxies
• Testing cold dark matter with the low mass Tully-Fisher relation
• Ancient stars beyond the Local Group: RR Lyrae variables and Blue Horizontal Branch stars in Sculptor Group Dwarf Galaxies
• A comparative study of satellite galaxies in Milky Way-like galaxies from HSC, DECaLS and SDSS
• Evolutionary tracks of tidally stirred disky dwarf galaxies
• The Effects of Massive Substructures on Image Multiplicities in Gravitati onal Lenses
• Mapping the Tidal Disruption of the Hercules Dwarf: A Wide-Field DECam Imaging Search for RR Lyrae Stars
• The Dark Matter Annihilation Signal from Dwarf Galaxies and Subhalos
• Precision Cosmology
• Nature of branon dark matter
• Low-mass suppression of the satellite luminosity function due to the supersonic baryon--cold-dark-matter relative velocity
• A robust mass estimator for dark matter subhalo perturbations in strong gravitational lenses
• The Cold Dark Matter crisis on galactic and subgalactic scales
• Warm Dark Matter in B-L Inverse Seesaw
• Constraining global properties of the Draco dwarf spheroidal galaxy
• The baryonic mass-velocity relation; clues to feedback processes during structure formation and the cosmic baryon inventory
• Deep Photometry of Andromeda Reveals Striking Similarities in the Tidal Stream and Spheroid Populations
• The Lens Galaxy In PG1115+080 is an Ellipse
• The Milky Way system in LCDM cosmological simulations
• Measuring the reionization optical depth without large-scale CMB polarization
• Pegasus W: An Ultra-Faint Dwarf Galaxy Outside the Halo of M31 Not Quenched by Reionization
• An optical and HI study of the dwarf Local Group galaxy VV124=UGC4879. A gas-poor dwarf with a stellar disk?
• Spatial and luminosity distributions of galactic satellites
• Discovery of a Solitaire Dwarf Galaxy in the APPLES Survey
• Probing sub-galactic mass structure with the power spectrum of surface-brightness anomalies in high-resolution observations of galaxy-galaxy strong gravitational lenses. II.Observational constraints on the sub-galactic matter power spectrum
• Reionization of the Local Group of Galaxies
• A search for low surface brightness dwarf galaxies in different environments
• And In The Darkness Unbind Them: High-Resolution Simulations of Dark Matter Subhalo Disruption in a Milky Way-like Tidal Field
• The Pandora project. I: the impact of radiation and cosmic rays on baryonic and dark matter properties of dwarf galaxies
• Predictably Missing Satellites: Subhalo Abundance in Milky Way-like Halos
• MaGICC-WDM: the effects of warm dark matter in hydrodynamical simulations of disc galaxy formation
• Probing wave-optics effects and low-mass dark matter halos with lensing of gravitational waves from massive black holes
• Where are All the Gas-Bearing Local Dwarf Galaxies? Quantifying Possible Impacts of Reionization
• Signatures of Dark Matter Halo Expansion in Galaxy Populations
• Confronting fuzzy dark matter with the rotation curves of nearby dwarf irregular galaxies
• Observed Properties of Dark Matter on Small Spatial Scales
• The Most Massive Black Holes in the Universe: Effects of Mergers in Massive Galaxy Clusters
• A Divided Universe: Red and Blue Galaxies and their Preferred Environments
• The Cosmological Significance of High-Velocity Cloud Complex H
• The spatial distribution of Milky Way satellites, gaps in streams and the nature of dark matter
• The importance of preventive feedback: inference from observations of the stellar masses and metallicities of Milky Way dwarf galaxies
• The cosmic UV background and the beginning and end of star formation in simulated field dwarf galaxies
• The Sky Polarization Observatory
• SDSS Survey for Resolved Milky Way Satellite Galaxies II: High-Velocity Clouds in the Early Data Release
• Weak Lensing by Line-of-sight Halos as the Origin of Flux-ratio Anomalies in Quadruply Lensed QSOs
• A Wide Field Survey of Satellite Galaxies around the Spiral Galaxy M106
• The importance of galaxy formation histories in models of reionization
• Completely dark galaxies: their existence, properties, and strategies for finding them
• The binary-host connection: astrophysics of gravitational wave binaries from their host galaxy properties
• Discovery of a new Local Group Dwarf Galaxy Candidate in UNIONS: Boötes V
• Relating the Diverse Merger Histories and Satellite Populations of Nearby Galaxies
• Nonthermal dark matter in mirage mediation
• A matter of measurement: rotation velocities and the velocity function of dwarf galaxies
• The Next Generation Virgo Cluster Survey. IX. Estimating the Efficiency of Galaxy Formation on the Lowest-Mass Scales
• Star Formation and Feedback in Smoothed Particle Hydrodynamic Simulations II: Resolution Effects
• On the dynamics of the satellite galaxies in NGC 5044
• History of Hydrogen Reionization in the Cold Dark Matter Model
• A rogues gallery of Andromeda's dwarf galaxies I. A predominance of red horizontal branches
• On dark matter - dark radiation interaction and cosmic reionization
• A bound on the 12C/13C ratio in near-pristine gas with ESPRESSO
• The effect of tides on the Sculptor dwarf spheroidal galaxy
• Tidal Mass Loss from Collisionless Systems
• Complementary Test of the Dark Matter Self-Interaction by Direct and Indirect Detections
• UniverseMachine: Predicting Galaxy Star Formation over Seven Decades of Halo Mass with Zoom-in Simulations
• The reionization of galactic satellite populations
• RESOLVE and ECO: The Halo Mass-Dependent Shape of Galaxy Stellar and Baryonic Mass Functions
• The galaxy-halo size relation of low-mass galaxies in FIRE
• The effects of Non-Gaussian initial conditions on the structure and substructure of Cold Dark Matter halos
• The Galactic globular cluster system as a fossil record of reionization
• High resolution simulations of the reionization of an isolated Milky Way - M31 galaxy pair
• Gravitational lensing magnification without multiple imaging
• Measuring Dark Matter Substructure with Galaxy-Galaxy Flexion Statistics
• The faintest radio source yet: EVLA observations of the gravitational lens SDSS J1004+4112
• The Morphology of Reionization in a Dynamically Clumpy Universe
• Quantifying the power spectrum of small-scale structure in semi-analytic galaxies
• Satellite Survival in Highly Resolved Milky Way Class Halos
• Astrophysical Tests of Dark Matter Self-Interactions
• Dwarf Spheroidal Satellite Formation in a Reionized Local Group
• Precision Cosmology: Successes and Challenges
• Dark Matter-baryon segregation in the non-linear evolution of coupled Dark Energy model
• A Search for Stellar Populations in High Velocity Clouds
• The PAndAS View of the Andromeda Satellite System. IV Global properties
• Running with BICEP2: Implications for Small-Scale Problems in CDM
• Fluctuations of the gravitational field generated by a random population of extended substructures
• Galaxy stellar mass assembly: the difficulty matching observations and semi-analytical predictions
• The Failure of Self-Interacting Dark Matter to solve the Overabundance of Dark Satellites and the Soft Core Question
• The PAndAS View of the Andromeda Satellite System. III. Dwarf galaxy detection limits
• X-rays and hard UV radiation From the First Galaxies: Ionization Bubbles and 21 cm Observations
• The 17 MeV Anomaly in Beryllium Decays and $U(1)$ Portal to Dark Matter
• Fossil records of cosmic reionization in galactic stellar halos
• The cusp-core problem in gas-poor dwarf spheroidal galaxies
• The concentration-velocity dispersion relation in galaxy groups
• Exploring extensions to the standard cosmological model and the impact of baryons on small scales
• Late decaying 2-component dark matter scenario as an explanation of the AMS-02 positron excess
• Pushing down the low-mass halo concentration frontier with the Lomonosov cosmological simulations
• Reionization Histories of Milky Way Mass Halos
• Tidal stirring of satellites with shallow density profiles prevents them from being too big to fail
• Towards a new modelling of gas flows in a semi-analytical model of galaxy formation and evolution
• The dark side of FIRE: predicting the population of dark matter subhaloes around Milky Way-mass galaxies
• The present-day gas content of simulated field dwarf galaxies
• The First Galaxies and the Likely Discovery of their Fossils in the Local Group
• Exploring Simulated Early Star Formation in the Context of the Ultrafaint Dwarf Galaxies
• Evolution of the baryon fraction in the Local Group: accretion versus feedback at low and high z
• Through a Smoother Lens: An expected absence of LCDM substructure detections from hydrodynamic and dark matter only simulations
• Reversal of Fortune: Increased Star Formation Efficiencies in the Early Histories of Dwarf Galaxies?
• Small scale clustering of late forming dark matter
• Inflation that runs naturally: Gravitational waves and suppression of power at large and small scales
• Lens Galaxy Environments and Anomalous Flux Ratios in Gravitational Lenses
• The nonlinear evolution of baryonic overdensities in the early universe: Initial conditions of numerical simulations
• The SAGA Survey. V. Modeling Satellite Systems around Milky Way-mass Galaxies with Updated UniverseMachine
• Reionization of the Milky Way, M31, and their satellites I: reionization history and star formation
• Absence of HI in the Bootes Dwarf Spheroidal Galaxy
• Dissecting galaxy formation models with Sensitivity Analysis -- A new approach to constrain the Milky Way formation history
• Statistics of Magnification Perturbations by Substructure in the Cold Dark Matter Cosmological Model
• The New Cosmology
• Constraining SuperWIMPy and Warm Subhalos with Future Submillilensing
• Out of sight, out of mind? The impact of correlated clustering in substructure lensing
• Push it to the limit: Local Group constraints on high-redshift stellar mass functions for Mstar > 10^5 Msun
• The potential role of NGC 205 in generating Andromeda's vast thin co-rotating plane of satellite galaxies
• Shedding light on low-mass subhalo survival and annihilation luminosity with numerical simulations
• Warm Dark Haloes Accretion Histories and their Gravitational Signatures
• A Merger Tree with Microsolar Mass Resolution: Application to $\gamma$-ray Emission from Subhalo Population
• Hedgehog: An Isolated Quiescent Dwarf Galaxy at 2.4 Mpc
• BVRI Surface Photometry of Isolated Spiral Galaxies
• Dead or Alive? How Bursty Star Formation and Patchy Dust Can Cause Temporary Quiescence in High Redshift Galaxies
• The tidal evolution of the Fornax dwarf spheroidal and its globular clusters
• Impact of substructure on local dark matter searches
• Micro galaxies in LCDM
• The Quenched Satellite Population Around Milky Way Analogs
• Formation of proto-globular cluster candidates in cosmological simulations of dwarf galaxies at $z>4$
• The prolate dark matter halo of the Andromeda galaxy
• Keck Spectroscopy of Globular Clusters in the Virgo Cluster Dwarf Elliptical VCC 1386
• The Rise of Dwarfs and the Fall of Giants: Galaxy Formation Feedback Signatures in the Halo Satellite Luminosity Function
• Bimodal morphologies of massive galaxies at the core of a protocluster at z=3.09 and the strong size growth of a brightest cluster galaxy
• BDM Dark Matter: CDM with a core profile and a free streaming scale
• Understanding dwarf galaxies as galactic building blocks
• Satellites in the field and lens galaxies: SDSS/COSMOS vs. SLACS/CLASS
• The Star-Forming Dwarf Galaxy Populations of two z ~ 0.4 Clusters: MS1512.4+3647 and Abell 851
• The Extended Disk Galaxy Exploration Science Survey: Description and Surface Brightness Profile Properties
• Searching for Optical Counterparts to Ultra-compact High Velocity Clouds: Possible Detection of a Counterpart to AGC 198606
• Cosmic Voids in Evolving Dark Sector Cosmologies: the Low Redshift Universe
• On the Edge: the relation between stellar and dark matter haloes of Milky Way-mass galaxies
• The ACS LCID Project XI. On the early time resolution of LG dwarf galaxy SFHs: Comparing the effects of reionization in models with observations
• Cosmic Voids in Evolving Dark Sector Cosmologies: the High Redshift Universe
• A census of dwarf galaxy satellites around LMC-mass galaxy NGC 2403
• Selecting ultra-faint dwarf candidate progenitors in cosmological N-body simulations at high redshifts
• Reionization time of the Local Group and Local-Group-like halo pairs
• Sloshing of Galaxy Cluster Core Plasma in the Presence of Self-Interacting Dark Matter
• Absence of Dwarf Galaxies at High Redshifts: Evidence from a Galaxy Group
• Non-sphericity of ultralight axion dark matter haloes in the Galactic dwarf spheroidal galaxies
• Booms and Busts: the Burstiness of Star Formation in Nearby Dwarf Galaxies
• Beacons In the Dark: Using Novae and Supernovae to Detect Dwarf Galaxies in the Local Universe
• GHOSTS I: A New Faint very Isolated Dwarf Galaxy at D = 12 +/- 2 Mpc
• Devouring the Milky Way Satellites: Modeling Dwarf Galaxies with Galacticus
• Dark Subhaloes and Disturbances in Extended HI Discs
• An upper limit on primordial magnetic fields from ultra-faint dwarf galaxies
• Orbital pericenters and the inferred dark matter halo structure of satellite galaxies
• The AGORA High-Resolution Galaxy Simulations Comparison Project VII: Satellite quenching in zoom-in simulation of a Milky Way-mass halo
• Faint Dwarfs in Nearby Groups
• Can Early Dark Energy be Probed by the High-Redshift Galaxy Abundance?
• Prospects for Detecting Gaps in Globular Cluster Stellar Streams in External Galaxies with the Nancy Grace Roman Space Telescope
• The Tail of Late-forming Dwarf Galaxies in $\Lambda$CDM
• Beyond Ultra-diffuse Galaxies. II. Environmental Quenching of Mass-Size Outliers among the Satellites of Milky Way Analogs
• Determining Satellite Infall Times Using Machine Learning
• Substructures in lens galaxies: PG1115+080 and B1555+375, two fold configurations
• Are symmetric tidal streams possible with long-range dark-matter forces?
• Milky Way simulations: the Galaxy, its stellar halo and its satellites - insights from a hybrid cosmological approach
• Accretion of Self-interacting Scalar Field Dark Matter Onto a Reissner-Nordström Black Hole
• Detectability of Local Group Dwarf Galaxy Analogues at High Redshifts
• Ultra faint dwarf galaxies: an arena for testing dark matter versus modified gravity
• Ghostly Halos in Dwarf Galaxies: Constraints on the Star Formation Efficiency before Reionization
• The Supersonic Project: The eccentricity and rotational support of SIGOs and DM GHOSts
• Satellite survival in cold dark matter cosmology
• On the coldness of the local Hubble flow: the role of baryons
• Ghostly Stellar Haloes and their Relationship to Ultra-faint Dwarfs
• Understanding the spatial variation of \ion{Mg}{II} and ionizing photon escape in a local LyC leaker
• Self-Consistent Theory of Halo Mergers - II: CDM Power Spectra
• Universal subhalo accretion in cold and warm dark matter cosmologies
• The THESAN-ZOOM project: Star-formation efficiencies in high-redshift galaxies
• Predictions on the stellar-to-halo mass relation in the dwarf regime using the empirical model for galaxy formation EMERGE
• Hidden from view: Coupled Dark Sector Physics and Small Scales
• Star Formation in Massive Galaxies at Redshift $z\sim 0.5$
• Where Did the Outskirts Go? Outer Stellar Haloes as a Sensitive Probe of Supernova Feedback
• Impact of a Warm Dark Matter late-time velocity dispersion on large-scale structures
• Dark matter dominated dwarf disc galaxy Segue 1
• Constraining Ultra-light Axions with Galaxy Cluster Number Counts
• NIHAO XXVIII: Collateral effects of AGN on dark matter concentration and stellar kinematics
• Non-explosive pre-supernova feedback in the COLIBRE model of galaxy formation
• The Properties of Satellite Galaxies in External Systems. I. Morphology and Structural Parameters
• Low Redshift QSO Lyman alpha Absorption Line Systems Associated with Galaxies
• A Novel Scheme for Dark Matter Annihilation Feedback in Cosmological Simulations
• A link between feedback outflows and satellite galaxy suppression
• Why do semi-analytic models predict higher scatter in the stellar mass-halo mass relation than cosmological hydrodynamic simulations?
• Strong Lensing by Subhalos in the Dwarf-Galaxy Mass Range II: Detection Probabilities
• EDEN: Exploring Disks Embedded in N-body simulations of Milky-Way-mass halos from Symphony
• Globular clusters vs dark matter haloes in strong lensing observations
• Probing baryonic processes and gastrophysics in the formation of the Milky Way dwarf satellites: I. metallicity distribution properties
• First Light and Reionization: A Conference Summary
• Signatures of reionization feedback in the near-infrared background
• Structure Formation Constraints on Sommerfeld-Enhanced Dark Matter Annihilation
• The Hierarchical Structure of Galactic Haloes: Classification and characterisation with Halo-OPTICS
• Clues to the nature of dark matter from first galaxies
• Dark Matter Annihilation Feedback in Cosmological Simulations II: The Influence on Gas and Halo Structure
• The Properties of Satellite Galaxies in External Systems. II. Photometry and Colors
• Photometric Metallicities in Bootes I
• Tiny galaxies and dark substructures: exploring the "dark" subhaloes in TNG50
• Cosmological Signatures of Dark Sector Physics: The Evolution of Haloes and Spin Alignment
• Relating the HI Gas Structure of Spiral Disks to Passing Satellites
• Satellites in the Local Group and Other Nearby Groups
• Testing extensions to LCDM on small scales with forthcoming cosmic shear surveys
• Lyman-α polarization from cosmological ionization fronts: I. Radiative transfer simulations
• Observing the very low-surface brightness dwarfs in a deep field in the VIRGO cluster: constraints on Dark Matter scenarios
• Ultra-Faint Milky Way Satellites Discovered in Carina, Phoenix, and Telescopium with DELVE Data Release 3
• Born to be Starless: Revisiting the Missing Satellite Problem
• Inferring the density and membership of stellar streams with flexible models: The GD-1 stream in Gaia Data Release 3
• Exploring effects of IMF sampling and SN feedback injection on star formation and metallicity in ultra-faint dwarf galaxies
• Using dust to constrain dark matter models
• Kinetic recoupling of dark matter
• Quantifying the Detectability of Milky Way Satellites with Image Simulations: a Case Study with KiDS
• Aeos: The Impact of Population III Initial Mass Function and Star-by-Star Models in Galaxy Simulations
• 3-3-1 Self Interacting Dark Matter and the Galaxy Core-Cusp problem
• Too small to succeed: the difficulty of sustaining star formation in low-mass haloes
• DELVE Milky Way Satellite Galaxy Census I: Satellite Population and Survey Selection Function in DES, DELVE, and Pan-STARRS
• CO and HI observations of an enigmatic cloud
• HI-selected Galaxies as a probe of Quasar Absorption Systems
• Dark halo densities, substructure, and the initial power spectrum
• Semi-Analytic Modeling of Dark Matter Subhalo Encounters with Thin Stellar Streams: Statistical Predictions for GD-1-like Streams in CDM
• A hierarchical clustering method for quantifying satellite abundance
• Modified Cosmology or Modified Galaxy Astrophysics is Driving the z>6 JWST Results? CMB Experiments can discover the Origin in the Near Future
• How Does Feedback Affect Milky Way Satellite Formation?
• On the Size Evolution of a Galactic Disk in Hierarchical Merging of Cold Dark Matter Halos
• Quenching of satellite galaxies of Milky Way analogues: reconciling theory and observations
• The Lowest Metallicity Stars in the LMC: Clues from MaGICC Simulations
• Forward-modelling the Luminosity, Distance, and Size distributions of the Milky Way Satellites
• Dwarf stellar haloes: a powerful probe of small-scale galaxy formation and the nature of dark matter
• Formation and early evolution of massive black holes
• Oscillating scalar field as dark matter through the cosmological epochs
• Reionization in HESTIA: Studying reionization in the LG through zoom simulations
• EDGE-INFERNO: How chemical enrichment assumptions impact the individual stars of a simulated ultra-faint dwarf galaxy
• walter: A Tool for Predicting Resolved Stellar Population Observations with Applications to the Roman Space Telescope
• Bulgeless Evolution And the Rise of Discs (BEARD) III. A numerical simulation view of satellites around Milky-Way analogues
• An Estimate of the Impact of Reionization on Supermassive Black Hole Growth