Program: GN-2015A-Q-6

We request Gemini/NIFS data to finish a survey of massive black holes in ultracompact dwarfs. Using Gemini/NIFS, we have recently discovered the first supermassive black hole in an ultracompact dwarf galaxy, M60-UCD1, making up 15% of the objects total mass. This indicates the object is likely the stripped nucleus of a once larger galaxy. There is indirect evidence from integrated dispersion measurements that many massive ultracompact dwarf galaxies may also host massive black holes. If true, these objects will make up a significant fraction of the total population of massive black holes. Our initial observations from 2014A focused on only the most massive and metal-rich targets, those most likely to be stripped nuclei and host black holes. Here we target objects with a wider range of metallicity and mass to obtain a census of black holes in ultracompact dwarf galaxies.