Ultralight bosonic fields are compelling dark-matter candidates and arise in a variety of beyond-Standard-Model scenarios. These fields can tap energy and angular momentum from spinning black holes through superradiant instabilities, during which a macroscopic bosonic condensate develops around the black hole. For real bosonic fields, striking signatures of this phenomenon that have been studied over the past few years include: gaps in the spin-mass distribution of astrophysical black holes, a continuous gravitational-wave signal emitted by the condensate and signatures imprinted in the gravitational waves emitted by binary black black holes. In this talk I will give an overview of the status of this research program and discuss some of the latest searches for signatures of ultralight bosons in gravitational-wave data.
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Zoom Meeting ID: 852 8915 0495
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