Speaker
Chen Yuan
(Shanghai University)
Description
Gravitational waves open a new window onto black holes and their surrounding environments. Realistic environments such as ultralight bosonic fields and accretion environments can leave observable signatures in gravitational wave signals. This talk explores how such environmental effects can be used to probe fundamental physics and astrophysics. Topics include gravitational waves from superradiant ultralight dark matter clouds around black holes, the resulting constraints on ultralight bosons, and the impact of accretion environments on black hole spin evolution and gravitational wave emission. These examples show how gravitational wave observations can probe and constrain ultralight dark matter, accretion physics, and strong-field gravity.
Author
Chen Yuan
(Shanghai University)