Imprints of Axion Superradiance in the CMB
arXiv:2009.10074 · doi:10.1103/PhysRevD.102.103018
Abstract
Light axions ( eV) can form dense clouds around rapidly rotating astrophysical black holes via a mechanism known as rotational superradiance. The coupling between axions and photons induces a parametric resonance, arising from the stimulated decay of the axion cloud, which can rapidly convert regions of large axion number densities into an enormous flux of low-energy photons. In this work we consider the phenomenological implications of a superradiant axion cloud undergoing resonant decay. We show that the low energy photons produced from such events will be absorbed over cosmologically short distances, potentially inducing massive shockwaves that heat and ionize the IGM over Mpc scales. These shockwaves may leave observable imprints in the form of anisotropic spectral distortions or inhomogeneous features in the optical depth.
v2: Published Version. Minor modifications to text and notation. v1: 9 pages, 4 figures
References in corpus (20)
- Discovering the QCD Axion with Black Holes and Gravitational Waves
- Revisiting the SN1987A gamma-ray limit on ultralight axion-like particles
- Gravitational wave searches for ultralight bosons with LIGO and LISA
- Black holes as particle detectors: evolution of superradiant instabilities
- Superradiant instabilities in astrophysical systems
- Stochastic and resolvable gravitational waves from ultralight bosons
- Redefining the Axion Window
- Ultra Light Boson Dark Matter and Event Horizon Telescope Observations of M87*
- Exploring black hole superkicks
- Bosenova collapse of axion cloud around a rotating black hole
- Fast Radio Bursts and Axion Miniclusters
- Reconstructing Patchy Reionization from the Cosmic Microwave Background
- Superkicks in Hyperbolic Encounters of Binary Black Holes
- Aspects of Nonlinear Effect on Black Hole Superradiance
- Modeling maximum astrophysical gravitational recoil velocities
- Missing black holes in brightest cluster galaxies as evidence for the occurrence of superkicks in nature
- Superkicks in ultrarelativistic encounters of spinning black holes
- Probing the string axiverse by gravitational waves from Cygnus X-1
- Clocking Out Superradiance Limits
- Amplification of superkicks in black-hole binaries through orbital eccentricity
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- Electromagnetic Bursts from Mergers of Oscillons in Axion-like Fields
- Axion Star Explosions: A New Source for Axion Indirect Detection
- Superradiant axion clouds around asteroid-mass primordial black holes
- Quenching Mechanisms of Photon Superradiance
- Plasma-photon interaction in curved spacetime I: formalism and quasibound states around nonspinning black holes
- CMB spectral distortions from continuous large energy release
- Superradiance in massive vector fields with spatially varying mass
- Constraining Light Dark Photons from GW190517 and GW190426_152155
- Axion Cloud Decay due to the Axion-photon Conversion with Background Magnetic Fields
- Local Group Velocity Distribution inside Superradiant Condensates
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