454 citations · 1.5k across the 26 of their papers we have counts for
28 papers
EDGE-INFERNO: The chemical signatures of assembly history in reionization fossils
Eric P. Andersson, Martin P. Rey, Alexander P. Ji +9
In galaxies, stellar populations represent a superposition of both in situ and accreted components, tracing internal chemical evolution as well as the histories of merged satellite…
Early onset of the hot circumgalactic medium around Milky Way galaxies
Víctor Rufo-Pastor, Oscar Agertz, Santi Roca-Fábrega +6
Hot coronae are key regulators in Milky Way (MW)-type galaxy formation and are thought to emerge once a galaxy's dark matter halo crosses a critical mass threshold, $M_{\mathrm{vir…
Dark matter haloes from dwarf to massive galaxies: no systematic inner-density tension with ΛCDM hydrodynamical simulations
Pavel E. Mancera Piña, Justin I. Read, Jorge Sarrato-Alós +1
Two of the most prominent small-scale challenges to the cold dark matter (CDM) paradigm are the cusp-core and diversity-of-rotation-curves problems. The former concerns the shallow…
A Universal Distribution of Dark Matter in Milky Way-like galaxies and How to Infer It
Sam Cheng-Tse Huang, Matthew R. Buckley, Justin I. Read +1
The phase-space density of dark matter within the Milky Way is a key quantity that encodes information about the nature of the dark sector. The local phase-space density is also re…
EDGE-INFERNO: How chemical enrichment assumptions impact the individual stars of a simulated ultra-faint dwarf galaxy
Eric P. Andersson, Martin P. Rey, Robert M. Yates +6
The chemical abundances of stars in galaxies are a fossil record of the star formation and stellar evolution processes that regulate galaxy formation, including the stellar initial…
The radial acceleration relation at the EDGE of galaxy formation: testing its universality in low-mass dwarf galaxies
Mariana P. Júlio, Justin I. Read, Marcel S. Pawlowski +6
A tight correlation between the baryonic and observed acceleration of galaxies has been reported over a wide range of mass () - the Radi…
The emergence of globular clusters and globular-cluster-like dwarfs
Ethan D. Taylor, Justin I. Read, Matthew D. A. Orkney +7
Globular clusters (GCs) are among the oldest and densest stellar systems in the Universe, yet how they form remains a mystery. Here we present a suite of cosmological simulations i…
The CHIMERA Survey: The first CO detection in Leo T, the lowest mass known galaxy still hosting cold molecular gas
Vicente Villanueva, Matías Blaña, Alberto D. Bolatto +13
We report the first CO detection in Leo T, representing the most extreme observation of carbon monoxide molecules in the lowest stellar mass gas-rich dwarf galaxy ($\sim…
The PARADIGM project II: The lifetimes and quenching of satellites in Milky Way-mass haloes
Gandhali D. Joshi, Andrew Pontzen, Oscar Agertz +2
The abundance and star-formation histories of satellites of Milky Way (MW)-like galaxies are linked to their hosts' assembly histories. To explore this connection, we use the PARAD…
The galaxy-halo connection of disc galaxies over six orders of magnitude in stellar mass
Pavel E. Mancera Piña, Justin I. Read, Stacy Kim +5
(Abridged) The relations between stellar (), gas (), baryonic (), and dark matter halo mass () provide unique cons…
EDGE: The emergence of dwarf galaxy scaling relations from cosmological radiation-hydrodynamics simulations
Martin P. Rey, Ethan Taylor, Emily I. Gray +14
We present a new suite of EDGE (`Engineering Dwarfs at Galaxy formation's Edge') cosmological zoom simulations. The suite includes 15 radiation-hydrodynamical dwarf galaxies coveri…
Trial by FIRE: Probing the dark matter density profile of dwarf galaxies with GraphNPE
Tri Nguyen, Justin Read, Lina Necib +4
The Dark Matter (DM) distribution in dwarf galaxies provides crucial insights into both structure formation and the particle nature of DM. GraphNPE (Graph Neural Posterior Estimato…
Theoretical Predictions for the Inner Dark Matter Distribution in the Milky Way Informed by Simulations
Abdelaziz Hussein, Lina Necib, Manoj Kaplinghat +5
We build a theoretical range for the Milky Way's (MW) inner dark matter (DM) distribution informed by the FIRE-2, Auriga, VINTERGATAN-GM, and TNG50 simulation suites assuming the c…
Merian: A Wide-Field Imaging Survey of Dwarf Galaxies at z~0.06-0.10
Shany Danieli, Erin Kado-Fong, Song Huang +32
We present the Merian Survey, an optical imaging survey optimized for studying the physical properties of bright star-forming dwarf galaxies. Merian is carried out with two medium-…
EDGE-INFERNO: Simulating every observable star in faint dwarf galaxies and their consequences for resolved-star photometric surveys
Eric P. Andersson, Martin P. Rey, Andrew Pontzen +4
Interpretation of data from faint dwarf galaxies is made challenging by observations limited to only the brightest stars. We present a major improvement to tackle this challenge by…
EDGE: Predictable Scatter in the Stellar Mass--Halo Mass Relation of Dwarf Galaxies
Stacy Y. Kim, Justin I. Read, Martin P. Rey +6
The stellar-mass--halo-mass (SMHM) relation is central to our understanding of galaxy formation and the nature of dark matter. However, its normalisation, slope, and scatter are hi…
Core formation by binary scouring and gravitational wave recoil in massive elliptical galaxies
Nader Khonji, Alessia Gualandris, Justin I. Read +1
Scouring by supermassive black hole (SMBH) binaries is the most accepted mechanism for the formation of the cores seen in giant elliptical galaxies. However, an additional mechanis…
EDGE: Dark matter core creation depends on the timing of star formation
Claudia Muni, Andrew Pontzen, Justin I. Read +5
We study feedback-driven cold dark matter core creation in the EDGE suite of radiation-hydrodynamical dwarf galaxy simulations. Understanding this process is crucial when using obs…
The PARADIGM project I: How early merger histories shape the present-day sizes of Milky-Way-mass galaxies
Gandhali D. Joshi, Andrew Pontzen, Oscar Agertz +3
How mergers affect galaxy formation depends on both feedback processes, and on the geometry and strength of the mergers themselves. We introduce the PARADIGM project, where we stud…
EDGE: A new model for Nuclear Star Cluster formation in dwarf galaxies
Emily I. Gray, Justin I. Read, Ethan Taylor +8
Nuclear Star Clusters (NSCs) are amongst the densest stellar systems in the Universe and are found at the centres of many bright spiral and elliptical galaxies, and up to 4…
Dwarf galaxies imply dark matter is heavier than
Tim Zimmermann, James Alvey, David J. E. Marsh +2
It is widely established that a lower bound on the dark matter particle mass, , can be obtained by demanding that the de Broglie wavelength in a given galaxy must be smaller tha…
Abundance matching with the mean star formation rate: there is no missing satellites problem in the Milky Way above
J. I. Read, D. Erkal
We introduce a novel abundance matching technique that produces a more accurate estimate of the pre-infall halo mass, , for satellite galaxies. To achieve this, we abundan…
The stellar mass-halo mass relation of isolated field dwarfs: a critical test of CDM at the edge of galaxy formation
J. I. Read, G. Iorio, O. Agertz +1
We fit the rotation curves of isolated dwarf galaxies to directly measure the stellar mass-halo mass relation () over the mass range $5 \times 10^5 < M_{*}/{\rm M}_\od…
Understanding the shape and diversity of dwarf galaxy rotation curves in LCDM
J. I. Read, G. Iorio, O. Agertz +1
The shape and diversity of dwarf galaxy rotation curves is at apparent odds with dark matter halos in a Cold Dark Matter (CDM) cosmology. We use mock data from isolated dwar…