68 citations · 442 across the 41 of their papers we have counts for
44 papers
The Rogue One: A Dark Matter-Dominated Dwarf in the Trail of Dark Matter-Deficient Galaxies
Daniel Vaz, Arsen Levitskiy, Duncan Forbes +6
We present the first measurement of the stellar velocity dispersion of LEDA 4014647, a compact dwarf galaxy spatially aligned with the NGC 1052 trail, a linear chain of dark matter…
Distance Estimation using Globular Clusters and Ultra-Compact Dwarfs
Bas van Heumen, Jonah S. Gannon, Duncan A. Forbes +2
The tight scaling relation between absolute magnitude and internal velocity dispersion () for globular clusters (GCs), referred to as the GC velocity dispersion (GCVD) relation,…
The Stellar Populations of Two Quiescent Low Surface Brightness Dwarf Galaxies in Low Density Environments
Duncan A. Forbes, Hannah S. Christie, Arsen Levitskiy +3
Dwarf galaxies located in low density environments that have quiescent stellar populations are extremely rare and the mechanism for quenching their stars is highly uncertain. Here…
Phase-Space Diagnostics for Dwarf Galaxies in Cluster Environments
Anna Ivleva, Rhea-Silvia Remus, Klaus Dolag +3
Ongoing effort is devoted to observing spectroscopic samples of dwarf galaxies in clusters, allowing the analysis of their distribution and associated trends in projected phase-spa…
Diffuse Dwarf Galaxies in Galaxy Clusters: I. Stellar Populations and Radial Gradients
Arsen Levitskiy, Duncan A. Forbes, Jonah S. Gannon +5
We use Keck/KCWI spectroscopy to study one ultra-diffuse galaxy (UDG) and five Nearly-UDGs (NUDGEs) in the Perseus cluster, together with an additional UDG in the Coma cluster. As…
FAST and Dark: A catalogue of Dark Galaxy Candidates within 50 Mpc
Marco Monaci, Duncan A. Forbes, Jonah S. Gannon +4
Using the first data release of the Five-hundred-meter Aperture Spherical radio Telescope (FAST) All-Sky HI survey (FASHI), we compile a catalogue of 70 dark galaxy candidates (DGC…
The Dawes Review 14: A Decade of Ultra-Diffuse Galaxies
Jonah S. Gannon, Anna Ferré-Mateu, Duncan A. Forbes
It has been 10 years since the initial discovery of Ultra-Diffuse Galaxies (UDGs) in the Coma cluster and the revelation that large, low surface brightness galaxies may constitute…
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''…
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…
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…
Analysis of Galaxies at the Extremes: Failed Galaxy Progenitors in the MAGNETICUM Simulations
Jonah S. Gannon, Lucas C. Kimmig, Duncan A. Forbes +5
There is increasing observational evidence for a failed galaxy formation pathway for some ultradiffuse galaxies (UDGs) at low redshift however they currently lack simulated counter…
Do Ultra-Diffuse Galaxies Follow the Globular Cluster-Halo Mass Relation?
Duncan A. Forbes, Jonah S. Gannon
The stellar mass-halo mass relation and the globular cluster (GC) number-halo mass relation are two scaling relations that relate fundamental properties of normal galaxies. Ultra-D…
A Comprehensive Look at PUDG-R21: Stellar Population and Kinematics of a Globular Cluster-Rich Ultra-Diffuse Galaxy in the Perseus Cluster
Arsen Levitskiy, Duncan A. Forbes, Jonah S. Gannon +5
We present the analysis of the stellar populations and kinematics of the globular cluster (GC) rich ultra-diffuse galaxy, PUDG-R21, using spectroscopic observations obtained with t…
Radial velocities and stellar populations for a sample of MATLAS survey dwarfs
Kate Southon, Jonah S. Gannon, Duncan A. Forbes +4
Spectroscopic observations are essential for confirming associations, measuring kinematics, and determining stellar populations in dwarf galaxies. Here, we present Keck Cosmic Web…
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…
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…
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)…
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…
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$_{…
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…
Comparing E-MOSAICS predictions of high-redshift proto-globular clusters with JWST observations in lensed galaxies
Joel Pfeffer, Duncan A. Forbes, Aaron J. Romanowsky +8
High-resolution imaging and strong gravitational lensing of high-redshift galaxies have enabled the detection of compact sources with properties similar to nearby massive star clus…
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…
The PIPER Survey. II. The Globular Cluster Systems of Low Surface Brightness Galaxies in the Perseus Cluster
Steven R. Janssens, Duncan A. Forbes, Aaron J. Romanowsky +7
We present Hubble Space Telescope ACS/WFC and WFC3/UVIS imaging for a sample of 50 low surface brightness (LSB) galaxies in the 10 M Perseus cluster, which w…
Keck/KCWI Spectroscopy of Globular Clusters in Local Volume Dwarf Galaxies
Duncan A. Forbes, Daniel Lyon, Jonah Gannon +2
A number of nearby dwarf galaxies have globular cluster (GC) candidates that require spectroscopic confirmation. Here we present Keck telescope spectra for 15 known GCs and GC cand…