Black holes surrounded by generic dark matter profiles: appearance and gravitational-wave emission

Understand

We develop a numerical approach to find asymptotically flat black hole solutions coupled to anisotropic fluids, described by generic density profiles.

• Our model allows for a variety of applications in realistic astrophysical scenarios, and is potentially able to describe the geometry of galaxies hosting supermassive black holes, dark matter environments and accretion phenomena.
• We apply our framework to a black hole surrounded by different families of dark matter profiles, namely the Hernquist, the Navarro-Frenk White and the Einasto models.
• We study the geodesic motion of light and of massive particles in such spacetimes.