Black holes with primary scalar hair

A Bakopoulos, C Charmousis, P Kanti, N Lecoeur… - Physical Review D, 2024 - APS
We present explicit black holes endowed with primary scalar hair within the shift-symmetric
subclass of beyond Horndeski theories. These solutions depend, in addition to the …

Regular compact objects with scalar hair

T Karakasis, NE Mavromatos, E Papantonopoulos - Physical Review D, 2023 - APS
We discuss exact regular compact object solutions in higher-dimensional extensions of
general relativity sourced by a phantom scalar field in arbitrary D spacetime dimensions (D> …

Exact black holes in string-inspired Euler-Heisenberg theory

A Bakopoulos, T Karakasis, NE Mavromatos, T Nakas… - Physical Review D, 2024 - APS
We consider higher-order derivative gauge field corrections that arise in the fundamental
context of dimensional reduction of string theory and Lovelock-inspired gravities and obtain …

Novel exact ultracompact and ultrasparse hairy black holes emanating from regular and phantom scalar fields

A Bakopoulos, T Nakas - Physical Review D, 2023 - APS
In the framework of a simple gravitational theory that contains a scalar field minimally
coupled to gravity, we investigate the emergence of analytic black-hole solutions with …

Compact objects with primary hair in shift and parity symmetric beyond Horndeski gravities

A Bakopoulos, N Chatzifotis, T Nakas - Physical Review D, 2024 - APS
In this work, we delve into the model of the shift symmetric and parity-preserving beyond
Horndeski theory in all its generality. We present an explicit algorithm to extract static and …

[HTML][HTML] Matter accretion onto the magnetically charged Euler–Heisenberg black hole with scalar hair

H Rehman, G Abbas, T Zhu, G Mustafa - The European Physical Journal C, 2023 - Springer
This paper deals with astrophysical accretion onto the magnetically charged Euler–
Heisenberg black holes with scalar hair. We examine the accretion process of a variety of …

Thermodynamics of the Einstein-Euler-Heisenberg rotating black hole

D Amaro, N Breton, C Lämmerzahl, A Macías - Physical Review D, 2024 - APS
We study the thermodynamic properties of a rotating electrically charged Einstein-Euler-
Heisenberg black hole solution. This describes a QED generalization of the Kerr-Newman …

Orbits in static magnetically and dyonically charged Einstein-Euler-Heisenberg black hole spacetimes

D Magos, N Bretón, A Macías - Physical Review D, 2023 - APS
In the framework of the nonlinear Euler-Heisenberg electrodynamics coupled to general
relativity, we consider static Einstein-Euler-Heisenberg magnetically and dyonically charged …

Scalar hairy black holes with an inverted Mexican-hat potential

XY Chew, KG Lim - Physical Review D, 2024 - APS
We numerically construct the asymptotically flat solutions of hairy black holes supported by a
symmetric inverted Mexican hat potential with a local minimum and two degenerate global …

Accretion around a hairy black hole in the framework of gravitational decoupling theory

H Rehman, G Abbas - Chinese Physics C, 2023 - iopscience.iop.org
We investigate astrophysical accretion onto a static and spherically symmetric hairy black
hole within the framework of gravitational decoupling. To achieve this goal, we examine the …