Superradiance and the Spins of Black Holes from LIGO and X-ray binaries

• DOI: 10.48550/arxiv.1911.07862
• Publication Date: 2019-01-01
• Authors: Nicolas Fernandez; Akshay Ghalsasi; Stefano Profumo
• Keywords: Superradiance

Measurements of the spin stellar mass black holes (BHs) are now possible both through LIGO observations binary BH mergers and for BHs in X-ray systems. The spins as inferred from suggest that on lower end what is expected a ``flat'' distribution spins, while those binaries tend to be large. Superradiance, process can effectively reduce before they merge, could explain observed non self-interacting light boson. In this paper, we use Bayesian analysis infer posterior probability boson fit data. We also analyze binaries, find data explained by superradiance due with large self-interactions. range such consistent