Spontaneous Scalarization of Black Holes and Compact Stars from a Gauss-Bonnet Coupling.
Phys Rev Lett
; 120(13): 131104, 2018 Mar 30.
Article
en En
| MEDLINE
| ID: mdl-29694214
ABSTRACT
We identify a class of scalar-tensor theories with coupling between the scalar and the Gauss-Bonnet invariant that exhibit spontaneous scalarization for both black holes and compact stars. In particular, these theories formally admit all of the stationary solutions of general relativity, but these are not dynamically preferred if certain conditions are satisfied. Remarkably, black holes exhibit scalarization if their mass lies within one of many narrow bands. We find evidence that scalarization can occur in neutron stars as well.
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1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Año:
2018
Tipo del documento:
Article
País de afiliación:
Estados Unidos