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The star formation histories of quiescent ultra-diffuse galaxies and their dependence on environment and globular cluster richness
Anna Ferré-Mateu, Jonah S. Gannon, Duncan A. Forbes +3
We derive the stellar population parameters of 11 quiescent ultra-diffuse galaxies (UDGs) from Keck/KCWI data. We supplement these with 14 literature UDGs, creating the largest spe…
Initial mass function variability from the integrated light of diverse stellar systems
Chloe M. Cheng, Alexa Villaume, Michael L. Balogh +4
We present a uniform analysis of the stellar initial mass function (IMF) from integrated light spectroscopy of 15 compact stellar systems (11 globular clusters in M31 and 4 ultra c…
Keck Spectroscopy of NGC 1052-DF9: Stellar Populations in the Context of the NGC 1052 Group
Jonah S. Gannon, Maria Luisa Buzzo, Anna Ferré-Mateu +3
In this study, we use Keck/KCWI spectroscopy to measure the age, metallicity and recessional velocity of NGC~1052-DF9 (DF9), a dwarf galaxy in the NGC~1052 group. We compare these…
The large-scale structure of globular clusters in the NGC 1052 group
Maria Luisa Buzzo, Duncan A. Forbes, Jean P. Brodie +4
Prompted by the many controversial claims involving the NGC 1052 group, including that it hosts two dark matter-free galaxies with overluminous and monochromatic globular cluster (…