Greybody factors of charged black holes with axion hair
arXiv:2506.18241 · doi:10.1103/5bcc-gc31
Abstract
We study the greybody factor of charged hairy black holes (BHs) that arise due to the presence of an axion coupled to the electromagnetic field. Specifically, we consider spin-0 and spin-1 test particles propagating in the background of BHs with axion hair, where the spacetime geometry is modified compared to that of the Reissner-Nordstrom (RN) BH. In contrast to the RN solution, with a given total BH charge, the effective potential for test particles depends on the ratio of electric to magnetic charges. In other words, charged BHs with axion hair breaks the electric-magnetic duality present in the RN solution. We compute the transmission coefficient of test particles plunging into the charged hairy BH and find that the deviation from the RN solution is particularly evident for higher multipole moments. Precise measurements of greybody factors can thus serve as probes for the possible existence of axions coupled to the electromagnetic field, as well as potential signatures of magnetic monopoles.
arXiv comment22 pages, 8 figures
References in corpus (47)
- Quasinormal modes of black holes and black branes
- String Axiverse
- Cold and Fuzzy Dark Matter
- Axions In String Theory
- Quasinormal behavior of the D-dimensional Schwarzshild black hole and higher order WKB approach
- The type IIB string axiverse and its low-energy phenomenology
- Revisiting the SN1987A gamma-ray limit on ultralight axion-like particles
- Quasinormal modes of black holes. The improved semianalytic approach
- Dirty blackholes: Thermodynamics and horizon structure
- Advanced Methods in Black-Hole Perturbation Theory
- An M Theory Solution to the Strong CP Problem and Constraints on the Axiverse
- Some general bounds for 1-D scattering
- Axion Dark Matter Detection with CMB Polarization
- Bounding the greybody factors for Schwarzschild black holes
- Axionic instabilities and new black hole solutions
- Comments on magnetic black holes
- Greybody factor for black string in dRGT massive gravity
- Weak deflection angle of Kazakov-Solodukhin black hole in plasma medium using Gauss-Bonnet theorem and its greybody bonding
- Charged black holes with axionic-type couplings: classes of solutions and dynamical scalarisation
- Greybody factor for black holes in dRGT massive gravity
- A black hole solution to the cosmological monopole problem
- Bounding the Greybody Factors for Non-rotating Black Holes
- Ringdown stability: greybody factors as stable gravitational-wave observables
- Quasinormal modes of charged black holes with corrections from nonlinear electrodynamics
- Regge-Wheeler equation, linear stability, and greybody factors for dirty black holes
- Bounding the Bogoliubov coefficients
- Hunting Axion Dark Matter with Protoplanetary Disk Polarimetry
- The Hawking effect and the bounds on greybody factor for higher dimensional Schwarzschild black holes
- Greybody factor and sparsity of Hawking radiation from a charged spherical black hole with scalar hair
- Quasinormal modes and gray-body factors of regular black holes in asymptotically safe gravity
- Thermal Ringdown of a Kerr Black Hole: Overtone Excitation, Fermi-Dirac Statistics and Greybody Factor
- Bounding the greybody factors for scalar excitations of the Kerr-Newman spacetime
- Greybody Factors Imprinted on Black Hole Ringdowns. II. Merging Binary Black Holes
- Analytic bounds on transmission probabilities
- Weak Deflection Angle, Hawking Radiation and Greybody Bound of Reissner-Nordström Black Hole Corrected by Bounce Parameter
- Transmission probabilities and the Miller-Good transformation
- Black hole perturbations in Maxwell-Horndeski theories
- Greybody factor for massive fermion emitted by a black hole in dRGT massive gravity theory
- Photonsphere, shadow, quasinormal modes, and greybody bounds of non-rotating Simpson-Visser black hole
- Hairy Magnetic and Dyonic Black Holes in the Standard Model
- Monopole-Antimonopole Pair Production in Primordial Magnetic Fields
- Spinning Black Holes with Axion Hair
- Constraints on axion-like polarization oscillations in the cosmic microwave background with POLARBEAR
- Can we distinguish black holes with electric and magnetic charges from quasinormal modes?
- Einstein-Maxwell-axion theory: Dyon solution with regular electric field
- Stability and Observability of Magnetic Primordial Black Hole-Neutron Star Collisions
- Probing the signature of axions through the quasinormal modes of black holes