Equatorial orbits and imaging of hairy cubic Galileon black holes

Van Aelst, Karim; Gourgoulhon, Eric; Vincent, Frederic H.

doi:10.1103/PhysRevD.104.124034

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Equatorial orbits and imaging of hairy cubic Galileon black holes

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Van Aelst, Karim
Computational Relativistic Astrophysics, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Citation

Van Aelst, K., Gourgoulhon, E., & Vincent, F. H. (2021). Equatorial orbits and imaging of hairy cubic Galileon black holes. Physical Review D, 104(12): 124034. doi:10.1103/PhysRevD.104.124034.

Cite as: https://hdl.handle.net/21.11116/0000-0008-2CA5-D

Abstract

Null and timelike orbits are investigated in a family of hairy rotating black
holes in the cubic Galileon theory. In particular, it is found that stable
circular geodesics exist below a critical coupling. Their properties expectedly
deviate from general relativity, which is further highlighted by computing
images of an accretion disk around such black holes.