No short hair behaviors of ultra-compact stars
arXiv:2005.14512 · doi:10.1140/epjc/s10052-021-09034-7
Abstract
In the black hole spacetime, a no short hair theorem was proved, which states that the effective radius of black hole hairs must extend beyond the null circular orbit. In the present paper, in the horizonless gravity, we find a similar no short hair behavior that the effective radius of matter fields must also extend beyond the null circular orbit of ultra-compact stars.
arXiv comment6 pages
References in corpus (24)
- Geodesic stability, Lyapunov exponents and quasinormal modes
- Light ring stability in ultra-compact objects
- Connection between black-hole quasinormal modes and lensing in the strong deflection limit
- Fundamental photon orbits: black hole shadows and spacetime instabilities
- Universal Bound on Dynamical Relaxation Times and Black-Hole Quasinormal Ringing
- Hairy Black Holes and Null Circular Geodesics
- Does the black hole shadow probe the event horizon geometry?
- Black holes have no short hair
- Upper bound on the radii of black-hole photonspheres
- General relativistic polytropes with a repulsive cosmological constant
- Spherical null geodesics of rotating Kerr black holes
- The fastest way to circle a black hole
- Gravitational instability of polytropic spheres containing region of trapped null geodesics: a possible explanation of central supermassive black holes in galactic halos
- Polytropic spheres containing regions of trapped null geodesics
- Black Hole Shadows and Invariant Phase Space Structures
- Photon spheres in Einstein and Einstein-Gauss-Bonnet theories and circular null geodesics in axially-symmetric spacetimes
- Self-gravitating field configurations: The role of the energy-momentum trace
- On instabilities of scalar hairy regular compact reflecting stars
- The extreme orbital period in scalar hairy kerr black holes
- Hair mass bound in the black hole with nonzero cosmological constants
- Analytic study of self-gravitating polytropic spheres with light rings
- Hair distributions in noncommutative Einstein-Born-Infeld black holes
- Lower bound on the compactness of isotropic ultra-compact objects
- Hairy mass bound in the Einstein-Born-Infeld black hole