BOBCat: A Big Cat-alogue of SMBHB Candidates

The Black Holes Orbiting Black Holes Catalog (BOBCat) will be an online, centralized database containing all Supermassive Black Hole Binary (SMBHB) candidates from the literature with separations ≲ 1 kpc, including detailed proposed models for various parameters of each candidate. Measurement and inference of fundamental SMBHB parameters remains a challenge due to the diversity of predictions and observations made in the literature. By centralizing observed data and modelled parameters for many SMBHBs, BOBCat could provide a means to easily find and select objects for developing a better understanding of MBHB physics. BOBCat aims to be a critical and continually up-to-date resource for Multi-Messenger Astronomy (MMA), coordinating information about promising continuous gravitational wave candidates with Pulsar Timing Arrays and LISA. Being the most comprehensive online catalog of SMBHBs, BOBCat will enable direct comparison of individual SMBHB models, and the sum of such models, to large-scale population models, potentially revealing new insights into SMBHB population evolution and biases in SMBHB candidate selection. We will present an update on the current status of BOBCat and its various features, as well as any population study results we may have.