Stationary Charged Scalar Clouds around Black Holes in String Theory
arXiv:1608.05974 · doi:10.1103/PhysRevD.94.085007
Abstract
It was reported that Kerr-Newman black holes can support linear charged scalar fields in their exterior regions. These stationary massive charged scalar fields can form bound states, which are called stationary scalar clouds. In this paper, we show that Kerr-Sen black holes can also support stationary massive charged scalar clouds by matching the near- and far-region solutions of the radial part of the Klein-Gordon wave equation. We also review stationary scalar clouds within the background of static electrically charged black hole solutions in the low-energy limit of heterotic string field theory, namely, the Gibbons-Maeda-Garfinkle-Horowitz-Strominger black holes.
13 pages, no figures; v2: references added, typos corrected
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Cited by in corpus (8)
- Black holes with synchronised Proca hair: linear clouds and fundamental non-linear solutions
- Kerr black holes with synchronised scalar hair and higher azimuthal harmonic index
- Superradiance in the BTZ black hole with Robin boundary conditions
- Quasibound states of charged dilatonic black holes
- Scalar clouds around Kerr-Sen black holes
- Black holes, stationary clouds and magnetic fields
- Analytical Study of a Kerr-Sen Black Hole and a Charged Massive Scalar Field
- Absorption by stringy black holes