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Ultra-diffuse and Ultra-compact Galaxies in the Frontier Fields Cluster Abell 2744
Steven Janssens, Roberto Abraham, Jean Brodie +3
We report the discovery of a large population of Ultra-diffuse Galaxies (UDGs) in the massive galaxy cluster Abell 2744 (z=0.308) as observed by the Hubble Frontier Fields program.…
Future Prospects: Deep Imaging of Galaxy Outskirts using Telescopes Large and Small
Roberto Abraham, Pieter van Dokkum, Charlie Conroy +5
The Universe is almost totally unexplored at low surface brightness levels. In spite of great progress in the construction of large telescopes and improvements in the sensitivity o…
Dust Attenuation in Clumpy, Star-Forming Galaxies at 0.07 < z < 0.14
Robert Bassett, Karl Glazebrook, David B. Fisher +7
Dust attenuation in galaxies has been extensively studied nearby, however, there are still many unknowns regarding attenuation in distant galaxies. We contribute to this effort usi…
The Dragonfly Nearby Galaxies Survey. II. Ultra diffuse galaxies near the elliptical galaxy NGC 5485
Allison Merritt, Pieter van Dokkum, Shany Danieli +4
We present the unexpected discovery of four ultra diffuse galaxies (UDGs) in a group environment. We recently identified seven extremely low surface brightness galaxies in the vici…
The stellar mass - size relation for cluster galaxies at z=1 with high angular resolution from the Gemini/GeMS multi-conjugate adaptive optics system
Sarah M. Sweet, Robert Sharp, Karl Glazebrook +7
We present the stellar mass - size relation for 49 galaxies within the = 1.067 cluster SPT-CL J05465345, with FWHM 80-120 mas -band data from the Gemini…
DYNAMO-HST Survey: Clumps in Nearby Massive Turbulent Disks and the Effects of Clump Clustering on Kiloparsec Scale Measurements of Clumps
David B. Fisher, Karl Glazebrook, Ivana Damjanov +6
We present 100 pc resolution Hubble Space Telescope H images of 10 galaxies from the DYnamics of Newly-Assembled Massive Objects (DYNAMO) survey of low- turbulent disk…