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Disentangling the stellar populations in the counter-rotating disc galaxy NGC 4550
Evelyn J. Johnston, Michael R. Merrifield, Alfonso Aragon-Salamanca +1
In order to try and understand its origins, we present high-quality long-slit spectral observations of the counter-rotating stellar discs in the strange S0 galaxy NGC 4550. We kine…
Radially Extended Kinematics in the S0 Galaxy NGC 2768 from Planetary Nebulae, Globular Clusters and Starlight
Duncan A. Forbes, Arianna Cortesi, Vincenzo Pota +7
There are only a few tracers available to probe the kinematics of individual early-type galaxies beyond one effective radius. Here we directly compare a sample of planetary nebulae…
The Structures of Distant Galaxies V: The Evolution of Galaxy Structure in Stellar Mass at z < 1
Michelle Lanyon-Foster, Christopher J. Conselice, Michael R. Merrifield
Galaxy structure and morphology is nearly always studied using the light originating from stars, however ideally one is interested in measuring structure using the stellar mass dis…
Dwarfs Gobbling Dwarfs: A Stellar Tidal Stream Around NGC 4449 and Hierarchical Galaxy Formation on Small Scales
David Martinez-Delgado, Aaron J. Romanowsky, R. Jay GaBany +13
A candidate diffuse stellar substructure was previously reported in the halo of the nearby dwarf starburst galaxy NGC 4449 by Karachentsev et al. We map and analyze this feature us…