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20182026
most citedFormation of ultra-diffuse galaxies in the field and in galaxy groups

142 citations · 268 across the 16 of their papers we have counts for

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16 papers · 1 filter

astro-ph.GA2026★ 3 cited

Bulgeless Evolution And the Rise of Discs (BEARD) I. Physical drivers of the mass-size relation for Milky Way-like galaxies

C. Marrero-de la Rosa, J. Méndez-Abreu, A. de Lorenzo-Cáceres +20

In the standard cold dark matter (CDM) cosmology, the existence of massive pure-disc galaxies remains challenging within the hierarchical framework and is key to understandi…

astro-ph.GA2026

Bulgeless Evolution And the Rise of Discs (BEARD) III. A numerical simulation view of satellites around Milky-Way analogues

Salvador Cardona-Barrero, Jairo Méndez-Abreu, Adriana de Lorenzo-Cáceres +17

. The existence of massive disc galaxies with little or no bulge challenges conventional cold dark matter model, which typically favours dynamically hot central structure…

astro-ph.GA2026★ 2 cited

Bulgeless Evolution And the Rise of Discs (BEARD) II. The role of mergers in shaping the Milky Way analogues in TNG50

Yetli Rosas-Guevara, Jairo Méndez-Abreu, Adriana de Lorenzo-Cáceres +20

We study the formation and evolution of bulgeless galaxies within the Milky Way-Andromeda analogue sample of the TNG50 simulation. Through kinematic decomposition with Mordor, we i…

astro-ph.GA2025

Cored galaxies in cuspy dark matter halos

Fernando Valenciano, Jorge Martin Camalich, Arianna Di Cintio +4

We investigate constraints on the inner stellar density profile from photometric data of dwarf spheroidal and ultra-faint dwarf galaxies. Our aim is to clarify under what condition…

astro-ph.GA2025

Ultra-Diffuse, Ultra-Different: Observed vs. Simulated Ultra-Diffuse Galaxies Live in Fundamentally Different Halos

Jonah S. Gannon, Arianna Di Cintio, Duncan A. Forbes +5

In this work, we compare galaxies from the NIHAO and HESTIA simulation suites to ultra-diffuse galaxies (UDGs) with spectroscopically measured dynamical masses. For each observed U…

astro-ph.GA2025

Beyond single tracers: CNN-based inference of galaxy mass profiles from combined gas and stellar kinematics

Julen Expósito-Márquez, Arianna Di Cintio, Chris Brook +2

We investigate whether combining gas and stellar kinematic maps provides measurable advantages in recovering galaxy mass profiles, compared to using single-component maps alone. Wh…

astro-ph.GA2025★ 8 cited

A physically motivated galaxy size definition across different state-of-the-art hydrodynamical simulations

Elena Arjona-Galvez, Salvador Cardona-Barrero, Robert J. J. Grand +6

Galaxy sizes are a key parameter to distinguishing between different galaxy types and morphologies, reflecting their formation and assembly histories. Several methods define galaxy…

astro-ph.GA2024★ 26 cited

The role of AGN feedback on the evolution of dwarf galaxies from cosmological simulations: SMBHs suppress star formation in low-mass galaxies

Elena Arjona-Galvez, Arianna Di Cintio, Robert J. J. Grand

Aims. Recent observational studies suggest that feedback from active galactic nuclei (AGNs) may play an important role in the formation and evolution of low-mass dwarf galaxies, an…

astro-ph.GA2023★ 4 cited

Constraining gas metal mixing strength in simulations using observations of the Milky Way's disc

Jorge Sarrato-Alós, Christopher Brook, Arianna Di Cintio

This work explores the mixing rate of metals in the interstellar medium (ISM), comparing observational constraints from our solar neighbourhood to high resolution cosmological hydr…

astro-ph.GA2023★ 9 cited

On the anti-correlation between pericentric distance and inner dark matter density of Milky Way's dwarf spheroidal galaxies

Salvador Cardona-Barrero, Giuseppina Battaglia, Carlo Nipoti +1

An anti-correlation between the central density of the dark matter halo () and the pericentric distances () of the Milky Way's (MW's) dwarf spheroidal ga…

astro-ph.GA2021★ 15 cited

A shallow dark matter halo in Ultra Diffuse Galaxy AGC 242019: are UDGs structurally similar to low surface brightness galaxies?

Chris B. Brook, Arianna Di Cintio, Andrea V. Maccio +1

A central question regarding Ultra Diffuse Galaxies (UDGs) is whether they are a separate category to Low Surface Brightness (LSB) galaxies, or just their natural continuation towa…

astro-ph.GA2021★ 9 cited

Origin of stellar prolate rotation in a cosmologically simulated faint dwarf galaxy

Salvador Cardona-Barrero, Giuseppina Battaglia, Arianna Di Cintio +2

Stellar prolate rotation in dwarf galaxies is rather uncommon, with only two known galaxies in the Local Group showing such feature (Phoenix and And II). Cosmological simulations s…

astro-ph.GA2020★ 12 cited

Self-Interacting Dark Matter and the Delay of Super-Massive Black Hole Growth

Akaxia Cruz, Andrew Pontzen, Marta Volonteri +6

Using cosmological hydrodynamic simulations with physically motivated models of super-massive black hole (SMBH) formation and growth, we compare the assembly of Milky Way-mass ( $M…

astro-ph.GA2018★ 142 cited

Formation of ultra-diffuse galaxies in the field and in galaxy groups

Fangzhou Jiang, Avishai Dekel, Jonathan Freundlich +4

We study ultra-diffuse galaxies (UDGs) in zoom in cosmological simulations, seeking the origin of UDGs in the field versus galaxy groups. We find that while field UDGs arise from d…

astro-ph.GA2018★ 13 cited

Stellar Feedback and the Energy Budget of Late-Type Galaxies: Missing Baryons and Core Creation

Harley Katz, Harry Desmond, Federico Lelli +4

In a CDM cosmology, galaxy formation is a globally inefficient process: it is often the case that far fewer baryons are observed in galaxy disks than expected from the cosmic ba…

astro-ph.GA2018★ 25 cited

On the early evolution of Local Group dwarf galaxy types: star formation and supernova feedback

Jose R. Bermejo-Climent, Giuseppina Battaglia, Carme Gallart +8

According to star formation histories (SFHs), Local Group dwarf galaxies can be broadly classified in two types: those forming most of their stars before () and t…