Grad Talk: "Linking space and ground based observational data to identify hidden globular clusters in CenA galaxy"

Abstract: Based on data from the Panoramic Imaging Survey of Centaurus and Sculptor (PISCeS), Gaia Telescope Data Release 2, and the NOAO Source Catalog I present a new catalog of over 40,000 globular cluster (GC) candidates in the Centaurus A (CenA) galaxy out to a projected radius of ~150 kpc.  Ranking these candidates based on the likelihood that they are true GCs, I find that approximately 1900 belong to our top two ranking categories and should be the highest priority for spectroscopic follow-up for confirmation.  This work showcases the power of space-based telescopes such as Gaia to identify slightly extended sources at the ~4 Mpc distance of CenA, enabling accurate identification of GCs throughout the entire extended halo, not just the inner regions that have been the focus of most previous work.