activity
20202026
most citedThe two formation pathways of S0 galaxies

42 citations · 101 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.GA2026

Coupling between stellar and HI lopsidedness in Milky Way-type galaxies from the Auriga Superstars cosmological simulations

Arianna Dolfi, Facundo A. Gómez, Rebekka Bieri +5

Lopsidedness is common in disk galaxies, yet its origin and evolution remain unclear. Previous studies typically examined stellar and gas asymmetries separately, but a combined ana…

astro-ph.GA2025

On the origin of counterrotating stellar disks in TNG50. I

M. C. Bugueño, Facundo A. Gómez, Arianna Dolfi +1

Understanding galaxy evolution is key to explaining the structures we observe in the present-day Universe. Counterrotating stellar disks (CRDs), i.e. co-spatial stellar disks rotat…

astro-ph.GA2024★ 3 cited

Tracing the origins of galaxy lopsidedness across cosmic time

Arianna Dolfi, Facundo A. Gomez, Antonela Monachesi +3

Current studies of large-scale asymmetries (i.e. lopsidedness) in the stellar density distribution of disk galaxies have mainly focused on the local Universe. Recent observations h…

astro-ph.GA2024★ 4 cited

A statistical study of lopsided galaxies using random forest

Valentina Fontirroig, Facundo A. Gomez, Marcelo Jaque Arancibia +2

Lopsided galaxies are late-type galaxies with a non-axisymmetric disk due to an uneven distribution of their stellar mass. Despite being a relatively common perturbation, several q…

astro-ph.GA2023

Lopsidedness as a tracer of early galactic assembly history

Arianna Dolfi, Facundo A. Gomez, Antonela Monachesi +4

Large-scale asymmetries (i.e. lopsidedness) are a common feature in the stellar density distribution of nearby disk galaxies both in low- and high-density environments. In this wor…

astro-ph.GA2023★ 10 cited

A Trail of the Invisible: Blue Globular Clusters Trace the Radial Density Distribution of the Dark Matter -- Case Study of NGC 4278

Matthias Kluge, Rhea-Silvia Remus, Iurii V. Babyk +2

We present new, deep optical observations of the early-type galaxy NGC 4278, which is located in a small loose group. We find that the galaxy lacks fine substructure, i.e., it appe…

astro-ph.GA2022★ 3 cited

The present-day globular cluster kinematics of lenticular galaxies from the E-MOSAICS simulations and their relation to the galaxy assembly histories

Arianna Dolfi, Joel Pfeffer, Duncan A. Forbes +5

We study the present-day rotational velocity () and velocity dispersion () profiles of the globular cluster (GC) systems in a sample of 50 lenticular (S0) galaxies from…

astro-ph.GA2021★ 42 cited

The two formation pathways of S0 galaxies

Simon Deeley, Michael J. Drinkwater, Sarah M. Sweet +4

Despite their ubiquity throughout the Universe, the formation of S0 galaxies remains uncertain. Recent observations have revealed that S0 galaxies make up a diverse population whic…

astro-ph.GA2021★ 24 cited

The SLUGGS survey: combining stars, globular clusters and planetary nebulae to understand the assembly history of early-type galaxies from their large radii kinematics

A. Dolfi, D. A. Forbes, W. J. Couch +4

We investigate the kinematic properties of nine nearby early-type galaxies with evidence of a disk-like component. Three of these galaxies are located in the field, five in the gro…

astro-ph.GA2020★ 15 cited

The assembly history of the nearest S0 galaxy NGC 3115 from its kinematics out to six half-light radii

Arianna Dolfi, Duncan A. Forbes, Warrick J. Couch +6

Using new and archival data, we study the kinematic properties of the nearest field S0 galaxy, NGC 3115, out to half-light radii () from its stars (integrat…