activity
20212026
most citedA new class of dark matter-free dwarf galaxies? I. Clues from FCC 224, NGC 1052-DF2 and NGC 1052-DF4

17 citations · 51 across the 18 of their papers we have counts for

collaborators

19 papers

astro-ph.GA2026

The extended globular cluster system of the archetypal "failed galaxy" Dragonfly-44 from deep white-light Hubble Space Telescope imaging

Maria Luisa Buzzo, Pieter van Dokkum, Roberto Abraham +2

For nearly a decade, Dragonfly-44 (DF44, ) has been considered an archetypal ``failed galaxy'', a system so rich in globular clusters (GCs)…

astro-ph.GA2026

Dark matter-deficient twins: FCC 224 and FCC 240 as possible analogues of NGC 1052-DF2 and DF4

Maria Luisa Buzzo, Pieter van Dokkum, Michael Hilker +3

The recent "bullet-dwarf" model proposes that high-velocity collisions between dwarf galaxies can produce stellar systems with overluminous globular clusters (GCs) and a deficiency…

astro-ph.GA2026

MATLAS-42, A Globular Cluster-Rich Ultra-Diffuse Galaxy That Diverges from the "Failed Galaxy'' Formation Pathway

Jonah S. Gannon, Duncan A. Forbes, Francine R. Marleau +4

To date, there has been significant interest in globular cluster (GC)-rich ultra-diffuse galaxies (UDGs) and the evidence that they have formed via an unexpected, ``failed galaxy''…

astro-ph.GA2025

Connection Between Dwarf Galaxies and Globular Clusters: Insights from the Perseus Cluster Using Subaru Imaging and Keck Spectroscopy

Yimeng Tang, Aaron J. Romanowsky, Song Huang +11

We present a systematic study of 189 dwarf galaxies and their globular cluster (GC) systems in the Perseus cluster, based on deep Subaru Hyper Suprime-Cam imaging and Keck spectros…

astro-ph.GA2025★ 4 cited

Looking into the faintEst WIth MUSE (LEWIS): Exploring the nature of ultra-diffuse galaxies in the Hydra-I cluster IV. A study of the Globular Cluster population in four UDGs

Marco Mirabile, Michele Cantiello, Marina Rejkuba +20

As old stellar systems, globular clusters (GCs) are key fossil tracers of galaxy formation and interaction histories. This paper is part of the LEWIS project, an integral-field spe…

astro-ph.GA2025★ 2 cited

GAMA 526784: the progenitor of a globular cluster-rich ultra-diffuse galaxy? II. Molecular gas, neutral gas and environment

Maria Luisa Buzzo, Anita Zanella, Michael Hilker +3

Aims. We investigate the gas reservoirs, star formation (SF) properties, and environment of the ultra-diffuse galaxy GAMA526784 to understand its formation history, the efficiency…

astro-ph.GA2025★ 4 cited

GAMA 526784: the progenitor of a globular cluster-rich ultra-diffuse galaxy? I. Star clusters, stellar body and ionised gas properties

Maria Luisa Buzzo, Michael Hilker, Anita Zanella +4

Context. Ultra-diffuse galaxies (UDGs) are an intriguing population of galaxies. Despite their dwarf-like stellar masses and low surface brightness, they have large half-light radi…

astro-ph.GA2025★ 1 cited

Investigating the Ultra-diffuse Galaxy NGC5846_UDG1 through the Kinematics of its Rich Globular Cluster System

Lydia Haacke, Duncan A. Forbes, Jonah S. Gannon +8

Recent studies of ultra-diffuse galaxies (UDGs) have shown their globular cluster (GC) systems to be central in unveiling their remarkable properties and halo masses. Deep HST imag…

astro-ph.GA2025★ 17 cited

A new class of dark matter-free dwarf galaxies? I. Clues from FCC 224, NGC 1052-DF2 and NGC 1052-DF4

Maria Luisa Buzzo, Duncan A. Forbes, Aaron J. Romanowsky +8

The discovery of quiescent, dark matter (DM)-deficient ultra-diffuse galaxies (UDGs) with overluminous globular clusters (GCs) has challenged galaxy formation models within the Lam…

astro-ph.GA2025★ 11 cited

An Unexplained Origin for the Unusual Globular Cluster System in the Ultra-diffuse Galaxy FCC 224

Yimeng Tang, Aaron J. Romanowsky, Jonah S. Gannon +9

We study the quiescent ultra-diffuse galaxy FCC 224 in the Fornax cluster using Hubble Space Telescope (HST) imaging, motivated by peculiar properties of its globular cluster (GC)…

astro-ph.GA2025★ 11 cited

Signs of `Everything Everywhere All At Once' formation in low surface brightness globular cluster-rich dwarf galaxies

Anna Ferré-Mateu, Jonah Gannon, Duncan A. Forbes +3

Only two ultra-diffuse galaxies (UDGs) have spatially resolved stellar population properties, both showing radially flat-to-rising metallicity profiles, indicative of a different f…

astro-ph.GA2024★ 1 cited

Why do some Ultra Diffuse Galaxies have Rich Globular Cluster Systems?

Duncan A. Forbes, Maria Luisa Buzzo, Anna Ferre-Mateu +4

Some ultra diffuse galaxies (UDGs) reveal many more globular clusters (GCs) than classical dwarf galaxies of the same stellar mass. These UDGs, with a mass in their GC system (M$_{…

astro-ph.GA2024

The multiple classes of ultra-diffuse galaxies: Can we tell them apart?

Maria Luisa Buzzo, Duncan A. Forbes, Thomas H. Jarrett +9

This study compiles stellar populations and internal properties of ultra-diffuse galaxies (UDGs) to highlight correlations with their local environment, globular cluster (GC) richn…

astro-ph.GA2024

Testing the Bullet Dwarf Collision Scenario in the NGC 1052 Group Through Morphologies and Stellar Populations

Yimeng Tang, Aaron J. Romanowsky, Pieter G. van Dokkum +8

NGC 1052-DF2 and -DF4 are two ultra-diffuse galaxies that have been reported as deficient in dark matter and associated with the same galaxy group. Recent findings suggest that DF2…

astro-ph.GA2024

A Catalogue and Analysis of Ultra-Diffuse Galaxy Spectroscopic Properties

Jonah S. Gannon, Anna Ferré-Mateu, Duncan A. Forbes +3

In order to help facilitate the future study of ultra-diffuse galaxies (UDGs) we compile a catalogue of their spectroscopic properties. Using it, we investigate some of the biases…

astro-ph.GA2024

Analysis of Galaxies at the Extremes: A Kinematic Analysis of the Virgo Cluster Dwarfs VCC 9 and VCC 1448 using the Keck Cosmic Web Imager

Jonah S. Gannon, Duncan A. Forbes, Aaron J. Romanowsky +8

We present spatially resolved Keck Cosmic Web Imager stellar spectroscopy of the Virgo cluster dwarf galaxies VCC 9 and VCC 1448. These galaxies have similar stellar masses and lar…

astro-ph.GA2024

Origin of the correlation between stellar kinematics and globular cluster system richness in ultra-diffuse galaxies

Joel Pfeffer, Steven R. Janssens, Maria Luisa Buzzo +9

Observational surveys have found that the dynamical masses of ultra-diffuse galaxies (UDGs) correlate with the richness of their globular cluster (GC) system. This could be explain…

astro-ph.GA2024

Constraining the stellar populations of ultra-diffuse galaxies in the MATLAS survey using spectral energy distribution fitting

Maria Luisa Buzzo, Duncan A. Forbes, Thomas H. Jarrett +12

We use spectral energy distribution (SED) fitting to place constraints on the stellar populations of 59 ultra-diffuse galaxies (UDGs) in the low-to-moderate density fields of the M…

astro-ph.GA2021

A new method to detect globular clusters with the S-PLUS survey

Maria Luísa Buzzo, Arianna Cortesi, Duncan A. Forbes +17

In this paper, we describe a new method to select globular cluster (GC) candidates, including galaxy subtraction with unsharp masking, template fitting techniques and the inclusion…