Dirac star with SU(2) Yang-Mills and Proca fields
arXiv:1911.11614 · doi:10.1103/PhysRevD.101.024023
Abstract
We study spherically symmetric strongly gravitating configurations supported by nonlinear spinor fields and non-Abelian SU(2) Yang-Mills/Proca magnetic fields. Regular asymptotically flat solutions describing objects with positive Arnowitt-Deser-Misner masses are obtained numerically. When the mass of the spinor fields is much smaller than the Planck mass, we find approximate solutions that can describe systems with total masses comparable to the Chandrasekhar mass and with effective radii of the order of kilometers. For the values of the system free parameters used here, we show that the SU(2) magnetic field always gives a small contribution to the total energy density and mass of the configurations under investigation. From the astrophysical point of view, one can regard such objects as magnetized Dirac stars.
10 pages, 6 figures, some corrections to content, new references added, version published in PRD. arXiv admin note: substantial text overlap with arXiv:1901.09905
References in corpus (21)
- TOPICAL REVIEW: General relativistic boson stars
- Astrophysical Signatures of Secluded Dark Matter
- Gravitating Non-Abelian Solitons and Black Holes with Yang-Mills Fields
- Proca Stars: gravitating Bose-Einstein condensates of massive spin 1 particles
- Gravitational Stability of Boson Stars
- Spinors, Inflation, and Non-Singular Cyclic Cosmologies
- Boson Stars: Alternatives to primordial black holes?
- Non-linear dynamics of spinning bosonic stars: formation and stability
- Particle-Like Solutions of the Einstein-Dirac Equations
- Asymptotically flat scalar, Dirac and Proca stars: discrete vs. continuous families of solutions
- Cylindrical wormholes
- Particle-Like Solutions of the Einstein-Dirac-Maxwell Equations
- Dirac star in the presence of Maxwell and Proca fields
- Fermionic cosmologies with Yukawa type interactions
- Dirac stars supported by nonlinear spinor fields
- Cosmological model with fermion and tachyon fields interacting via Yukawa-type potential
- Nonlinear spinor field equations in gravitational theory: spherical symmetric soliton-like solutions
- Nonlinear Spinor field in isotropic space-time and dark energy models
- Non-Abelian Proca-Dirac-Higgs theory: particle-like solutions and their energy spectrum
- Perturbing the ground state of Dirac stars
- Self-gravitating stringlike configurations from nonlinear electodynamics
Cited by in corpus (14)
- MGD Dirac stars
- The minimal of geometric deformation of Yang-Mills-Dirac stellar configurations
- Fermion soliton stars
- Axially symmetric Proca-Higgs boson stars
- Einstein-Dirac system in semiclassical gravity
- Proca balls with angular momentum or flux of electric field
- Spinor domain wall and test fermions on an arbitrary domain wall
- Gravitationally localized states of two neutral fermions interacting with a Higgs field
- Rapidly rotating Dirac stars
- Dirac stars with wormhole topology
- Analytical solutions for Maxwell-scalar system on radially symmetric spacetimes
- Static and collapsing configurations supported by the spinor fluid
- Internal symmetry to the rescue: well-posed 1+1 evolution of self-interacting vector fields
- Self-gravitating nonlinear Dirac fields