Infinitesimally thin static scalar shells surrounding charged Gauss-Bonnet black holes
Abstract
We reveal the existence of a new form of spontaneously scalarized black-hole configurations. In particular, it is proved that Reissner-Nordström black holes in the highly charged regime Q/M > (Q/M)crit = √{21 }/5 can support thin matter shells that are made of massive scalar fields with a non-minimal coupling to the Gauss-Bonnet invariant of the curved spacetime. These static scalar shells, which become infinitesimally thin in the dimensionless large-mass Mμ » 1 regime, hover a finite proper distance above the black-hole horizon [here {M, Q} are respectively the mass and electric charge of the central supporting black hole, and μ is the proper mass of the supported scalar field]. In addition, we derive a remarkably compact analytical formula for the discrete resonance spectrum {η(Q/M,M)μ n} n =0n =∞ of the non-trivial coupling parameter which characterizes the bound-state charged-black-hole-thin-massive-scalar-shell cloudy configurations of the composed Einstein-Maxwell-scalar field theory.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- February 2022
- DOI:
- 10.1007/JHEP02(2022)039
- arXiv:
- arXiv:2201.03503
- Bibcode:
- 2022JHEP...02..039H
- Keywords:
-
- Black Holes;
- Classical Theories of Gravity;
- High Energy Physics - Theory;
- Astrophysics - High Energy Astrophysical Phenomena;
- General Relativity and Quantum Cosmology
- E-Print:
- 17 pages