Shadows and Properties of Spin-Induced Scalarized Black Holes with and without a Ricci Coupling
arXiv:2403.14596 · doi:10.1103/PhysRevD.109.104033
Abstract
In this work, we explore the properties and shadows of spin-induced scalarized black holes, as well as investigate how a Ricci coupling influences them. Our findings reveal significant deviations from the Kerr metric in terms of the location and geodesic frequencies of the innermost stable circular orbit and light ring, with the former exhibiting more pronounced disparities. The shadows of scalarized black holes exhibit relatively minor deviations when compared to those of Kerr black holes with the same mass and spin. Overall, the presence of a Ricci coupling is observed to mitigate deviations from the Kerr metric.
8 pages, 6 figures
References in corpus (18)
- The Confrontation between General Relativity and Experiment
- First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole
- Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A
- First Sagittarius A* Event Horizon Telescope Results. VI: Testing the Black Hole Metric
- Constraints on black-hole charges with the 2017 EHT observations of M87*
- Gravitational Test Beyond the First Post-Newtonian Order with the Shadow of the M87 Black Hole
- Spontaneously scalarised Kerr black holes
- Self-interactions and Spontaneous Black Hole Scalarization
- Spontaneous scalarization
- Stellar and substellar objects in modified gravity
- Black hole scalarization with Gauss-Bonnet and Ricci scalar couplings
- Adaptive Analytical Ray Tracing of Black Hole Photon Rings
- The onset of spontaneous scalarization in generalised scalar-tensor theories
- Black Hole Photon Rings Beyond General Relativity
- A new approach and code for spinning black holes in modified gravity
- Neutron star scalarization with Gauss-Bonnet and Ricci scalar couplings
- Spinning Black Holes with Axion Hair
- Nonlinearly scalarized rotating black holes in Einstein-scalar-Gauss-Bonnet theory