Accretion disks around black holes in Scalar-Tensor-Vector Gravity

Understand

Scalar Tensor Vector Gravity (STVG) is an alternative theory of gravitation that has successfully explained the rotation curves of nearby galaxies, the dynamics of galactic clusters, and cosmological data without dark matter, but has hardly been tested in the strong gravity regime.

• In this work, we aim at building radiative models of thin accretion disks for both Schwarzschild and Kerr black holes in STVG theory.
• In particular, we study stable circular equatorial orbits around stellar and supermassive black holes in Schwarzschild and Kerr STVG spacetimes.
• We also calculate the temperature and luminosity distributions of accretion disks around these objects.