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Evidence of Absence of Tidal Features in the Outskirts of Ultra Diffuse Galaxies in the Coma Cluster
Lamiya Mowla, Pieter van Dokkum, Allison Merritt +3
We study the presence of tidal features associated with ultra diffuse galaxies (UDGs) in galaxy clusters. Specifically, we stack deep Subaru images of UDGs in the Coma cluster to d…
Gas Content and Kinematics in Clumpy, Turbulent Star-forming Disks
Heidi A. White, David B. Fisher, Norman Murray +6
We present molecular gas mass estimates for a sample of 13 local galaxies whose kinematic and star forming properties closely resemble those observed in main-sequenc…
Extensive Globular Cluster Systems Associated with Ultra Diffuse Galaxies in the Coma Cluster
Pieter van Dokkum, Roberto Abraham, Aaron J. Romanowsky +7
We present Hubble Space Telescope imaging of two ultra diffuse galaxies (UDGs) with measured stellar velocity dispersions in the Coma cluster. The galaxies, Dragonfly 44 and DFX1,…
The Dragonfly Nearby Galaxies Survey. III. The Luminosity Function of the M101 Group
Shany Danieli, Pieter van Dokkum, Allison Merritt +4
We obtained follow-up HST observations of the seven low surface brightness galaxies discovered with the Dragonfly Telephoto Array in the field of the massive spiral galaxy M101. Ou…