Axionlike dark matter clouds around rotating black holes

  title={Axionlike dark matter clouds around rotating black holes},
  author={Bartłomiej Kiczek and M. Rogatko},
Numerical analysis of dark matter axion-like cloud in the vicinity of rotating black hole has been performed. The model where axion-like scalar field is non-trivially coupled to Maxwell field is studied in the spacetime of Kerr black hole in uniform magnetic field and in Kerr-Newman one. The dependence of scalar mass and black hole angular momentum on accumulation of axion dark matter cloud was given. It was revealed that condensation of the dark matter clouds is preferable for a very small… Expand

Figures from this paper


Influence of dark matter on black hole scalar hair
Searches for dark matter sector field imprints on the astrophysical phenomena are one of the most active branches of the current researches. Using numerical methods, we elaborate the influence ofExpand
Axionic instabilities and new black hole solutions
The coupling between scalar and vector fields has a long and interesting history. Axions are one key possibility to solve the strong CP problem and axion-like particles could be one solution to theExpand
Stimulated Axion Decay in Superradiant Clouds around Primordial Black Holes.
It is shown that, despite the long lifetime of the QCD axion with respect to spontaneous decay into photon pairs, stimulated decay becomes significant above a minimum axion density and leads to extremely bright lasers, suggesting a possible link to the observed fast radio bursts. Expand
Constraining the mass of dark photons and axion-like particles through black-hole superradiance
Ultralight bosons and axion-like particles appear naturally in different scenarios and could solve some long-standing puzzles. Their detection is challenging, and all direct methods hinge on unknownExpand
Axion configurations around pulsars
Axion-like particles lead to a plethora of new phenomena relating to compact astrophysical objects including stellar and black hole superradiance, axion stars and axion clusters. In this work, weExpand
Blasts of Light from Axions.
It is shown that laserlike emission from clouds exists at the classical level, and this work provides the first quantitative description of the problem. Expand
Dark photon dark matter produced by axion oscillations
Despite growing interest and extensive effort to search for ultralight dark matter in the form of a hypothetical dark photon, how it fits into a consistent cosmology is unclear. Several dark photonExpand
Axion dark matter detection with CMB polarization
We point out two ways to search for low-mass axion dark matter using cosmic microwave background (CMB) polarization measurements. These appear, in particular, to be some of the most promising ways toExpand
New Limits on Axionic Dark Matter from the Magnetar PSR J1745-2900
Axions are a promising dark matter candidate that were motivated to solve the strong CP problem and that may also address the cosmological matter-antimatter asymmetry. Axion-photon conversion isExpand
Black hole in a uniform magnetic field
Using the fact that a Killing vector in a vacuum spacetime serves as a vector potential for a Maxwell test field, we derive the solution for the electromagnetic field occurring when a stationary,Expand