6 papers
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…
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…
E-INSPIRE -- I. Bridging the gap with the local Universe: Stellar population of a statistical sample of ultra-compact massive galaxies at
John Mills, Chiara Spiniello, Alexey Sergeyev +10
This paper presents the first effort to Extend the Investigation of Stellar Populations In RElics (E-INSPIRE). We present a catalogue of 430 spectroscopically-confirmed ultra-compa…
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…
The puzzle of isolated and quenched dwarf galaxies in cosmic voids
Bahar Bidaran, Isabel Pérez, Laura Sánchez-Menguiano +12
We report, for the first time, the detection of a sample of quenched and isolated dwarf galaxies (with 8.9 log(M/M) 9.5) in the least dense regi…