Axion Production in Pulsar Magnetosphere Gaps

Abstract

Pulsar magnetospheres admit non-stationary vacuum gaps that are characterized by non-vanishing $\mathbf{E}\cdot \mathbf{B}$. The vacuum gaps play an important role in plasma production and electromagnetic wave emission. We show that these gaps generate axions whose energy is set by the gap oscillation frequency. The density of axions produced in a gap can be several orders of magnitude greater than the ambient dark matter density. In the strong pulsar magnetic field, a fraction of these axions may convert to photons, giving rise to broadband radio signals. We show that dedicated observations of nearby pulsars with radio telescopes (FAST) and interferometers (SKA) can probe axion-photon couplings that are a few orders of magnitude lower than current astrophysical bounds.

arXiv comment7 pages, 3 figures

References in corpus (63)

• A bright millisecond radio burst of extragalactic origin
• String Axiverse
• Axions In String Theory
• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• A Population of Fast Radio Bursts at Cosmological Distances
• The McGill Magnetar Catalog
• A fast radio burst associated with a Galactic magnetar
• A SQUID-based microwave cavity search for dark-matter axions
• A Search for Invisible Axion Dark Matter with the Axion Dark Matter Experiment
• Fast Radio Burst Discovered in the Arecibo Pulsar ALFA Survey
• Transient pulsed radio emission from a magnetar
• Dielectric Haloscopes: A New Way to Detect Axion Dark Matter
• New ALPS Results on Hidden-Sector Lightweights
• Dense magnetized plasma associated with a fast radio burst
• The CHIME Fast Radio Burst Project: System Overview
• Any Light Particle Search II -- Technical Design Report
• Broadband and Resonant Approaches to Axion Dark Matter Detection
• First results from a microwave cavity axion search at 24 micro-eV
• ARCADE 2 Measurement of the Extra-Galactic Sky Temperature at 3-90 GHz
• The ORGAN Experiment: An axion haloscope above 15 GHz
• The Physical Mechanisms of Fast Radio Bursts
• Five new Fast Radio Bursts from the HTRU high latitude survey: first evidence for two-component bursts
• Current Flow and Pair Creation at Low Altitude in Rotation Powered Pulsars' Force-Free Magnetospheres: Space-Charge Limited Flow
• High-Altitude Particle Acceleration and Radiation in Pulsar Slot Gaps
• Probing eV-scale axions with CAST
• New Exclusion Limits for the Search of Scalar and Pseudoscalar Axion-Like Particles from "Light Shining Through a Wall"
• Drifting subpulses and inner acceleration regions in radio pulsars
• An Improved RF Cavity Search for Halo Axions
• Axion and hidden photon dark matter detection with multilayer optical haloscopes
• Observations of Fast Radio Bursts at Frequencies down to 400 Megahertz
• Radio Signals from Axion Dark Matter Conversion in Neutron Star Magnetospheres
• The host galaxies and progenitors of Fast Radio Bursts localized with the Australian Square Kilometre Array Pathfinder
• The detection of an extremely bright fast radio burst in a phased array feed survey
• Radio Quiet Pulsars with Ultra-Strong Magnetic Fields
• A fast radio burst in the direction of the Carina dwarf spheroidal galaxy
• First results of the CERN Resonant WISP Search (CROWS)
• The Galactic Position Dependence of Fast Radio Bursts and the Discovery of FRB 011025
• The Prelude to and Aftermath of the Giant Flare of 2004 December 27: Persistent and Pulsed X-ray Properties of SGR 1806-20 from 1993 to 2005
• Resonantly Enhanced Axion-Photon Regeneration
• Detecting Axion Dark Matter with Radio Lines from Neutron Star Populations
• A Cavity Experiment to Search for Hidden Sector Photons
• The Five-hundred-meter Aperture Spherical Radio Telescope (FAST) Project
• Resonant laser power build-up in ALPS -- a "light-shining-through-walls" experiment
• Green Bank and Effelsberg Radio Telescope Searches for Axion Dark Matter Conversion in Neutron Star Magnetospheres
• On the Nature of Pulsar Radio Emission
• Radio Signal of Axion-Photon Conversion in Neutron Stars: A Ray Tracing Analysis
• Dark matter axion detection in the radio/mm-waveband
• Timing the Nearby Isolated Neutron Star RX J1856.5-3754
• Fast Radio Transient searches with UTMOST at 843 MHz
• The implications of radio-quiet neutron stars
• Fast radio bursts from axion stars moving through pulsar magnetospheres
• The first XMM-Newton observations of the Soft Gamma-ray Repeater SGR 1900+14
• Axion Emission Can Explain a New Hard $X$-ray Excess from Nearby Isolated Neutron Stars
• New solar axion search in CAST with ${}^4$He filling
• X-ray Signatures of Axion Conversion in Magnetic White Dwarf Stars
• Constraining Axion-Like-Particles with Hard X-ray Emission from Magnetars
• Feasibility, engineering aspects and physics reach of microwave cavity experiments searching for hidden photons and axions
• Electrodynamics of Magnetars IV: Self-Consistent Model of the Inner Accelerator, with Implications for Pulsed Radio Emission
• Magnetars and Axion-like Particles: Probes with the Hard X-ray Spectrum
• X-Ray Polarization Signals from Magnetars with Axion-Like-Particles
• Resonant Conversion of Dark Matter Oscillons in Pulsar Magnetospheres
• Axion Constraints from Quiescent Soft Gamma-ray Emission from Magnetars
• On the Possibility of Curvature Radiation from Radio Pulsars

Cited by in corpus (17)

• Astrophysical Axion Bounds: The 2024 Edition
• Constraining self-interacting fermionic dark matter in admixed neutron stars using multimessenger astronomy
• Transient Radio Lines from Axion Miniclusters and Axion Stars
• Detecting Axion Dark Matter through the Radio Signal from Omega Centauri
• Axion-mediated Transport of Fast Radio Bursts Originating in Inner Magnetospheres of Magnetars
• Chiral anomalous processes in magnetospheres of pulsars and black holes
• A comprehensive calculation of the Primakoff process and the solar axion flux
• Fundamental physics with neutron stars
• Revealing Dark Matter's Role in Neutron Stars Anisotropy: A Bayesian Approach Using Multi-messenger Observations
• Optical circular polarization induced by axionlike particles in blazars
• On the Galactic radio signal from stimulated decay of axion dark matter
• Axions in Andromeda: Searching for Minicluster -- Neutron Star Encounters with the Green Bank Telescope
• Stacking the Deck: Gambling on a Light QCD Axion
• Superdense beaming of axion dark matter in the vicinity of the light cylinder of pulsars
• Probing ALP-photon couplings in Neutron Stars: Scalar versus pseudoscalar cases
• I-Love-Q Relations of Fermion-Boson Stars
• Physics beyond the Standard Model with the DSA-2000