Rotating tensor-multi-scalar solitons
arXiv:1912.02498 · doi:10.1103/PhysRevD.101.044021
Abstract
In the context of a special class of tensor-multi-scalar theories of gravity for which the target-space metric admits an isometry under which the theory is invariant, we present rotating vacuum solutions, namely with no matter fields. These objects behave like nontopological solitons, whose primary stability is due to the conserved charge arising from the global symmetry. We consider theories with two and three scalar fields, different Gauss curvatures and quartic interaction coefficients. As it occurs for boson stars, their angular momentum is quantized.
References in corpus (7)
- Ergoregion instability of ultra-compact astrophysical objects
- Rotating Boson Stars and Q-Balls II: Negative Parity and Ergoregions
- Models of rotating boson stars and geodesics around them: new type of orbits
- Supermassive black holes or boson stars? Hair counting with gravitational wave detectors
- Comparing timelike geodesics around a Kerr black hole and a boson star
- Excited Boson Stars
- A new type of dark compact objects in massive tensor-multi-scalar theories of gravity