Globular clusters indicate ultra diffuse galaxies are dwarfs

We present an analysis of archival {\it HST/ACS} imaging in the F475W (g_{475}), F606W (V_{606}) and F814W (I_{814}) bands of the globular cluster (GC) system of a large (3.4 kpc effective radius) ultra-diffuse galaxy (DF17) believed located in the Coma Cluster of galaxies. We detect 11 GCs down to the... Show more