Bondi Accretion in the Spherically Symmetric Johannsen-Psaltis Spacetime

Understand

The Johannsen-Psaltis spacetime explicitly violates the no hair theorem.

• It describes rotating black holes with scalar hair in the form of parametric deviations from the Kerr metric.
• In principle, black hole solutions in any modified theory of gravity could be written in terms of the Johannsen-Psaltis metric.
• We study the accretion of gas onto a static limit of this spacetime.