activity
20192026
most citedNGC5846-UDG1: A galaxy formed mostly by star formation in massive, extremely dense clumps of gas

68 citations · 442 across the 41 of their papers we have counts for

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Showing 2025Show all

10 papers · 1 filter

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

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★ 1 cited

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…

astro-ph.GA2025

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…

astro-ph.GA2025

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…

astro-ph.GA2025★ 1 cited

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…

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…