Probing Dark Matter with AGN Jets

Abstract

We study the possibility of detecting a signature of particle dark matter in the spectrum of gamma-ray photons from active galactic nuclei (AGNs) resulting from the scattering of high-energy particles in the AGN jet off of dark matter particles. We consider particle dark matter models in the context of both supersymmetry and universal extra-dimensions (UED), and we present the complete lowest-order calculation for processes where a photon is emitted in dark matter-electron and/or dark matter-proton scattering, where electrons and protons belong to the AGN jet. We find that the process is dominated by a resonance whose energy is dictated by the particle spectrum in the dark matter sector (neutralino and selectron for the case of supersymmetry, Kaluza-Klein photon and electron for UED). The resulting gamma-ray spectrum exhibits a very characteristic spectral feature, consisting of a sharp break to a hard power-law behavior. Although the normalization of the gamma-ray flux depends strongly on assumptions on both the AGN jet geometry, composition and particle spectrum as well as on the particle dark matter model and density distribution, we show that for realistic parameters choices, and for two prominent nearby AGNs (Centaurus A and M87), the detection of this effect is in principle possible. Finally, we compare our predictions and results with recent gamma-ray observations from the Fermi, H.E.S.S. and VERITAS telescopes.

23 pages, 13 figures, submitted

References in corpus (19)

• Supersymmetric Dark Matter
• The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission
• Dark matter annihilation at the galactic center
• Dark Matter and Collider Phenomenology of Universal Extra Dimensions
• Fast variability of TeV gamma-rays from the radio galaxy M 87
• The Black Hole Mass, Stellar M/L, and Dark Halo in M87
• Discovery of very high energy gamma-ray emission from Centaurus A with H.E.S.S
• Fermi Large Area Telescope Gamma-Ray Detection of the Radio Galaxy M87
• Dark Matter Profile in the Galactic Center
• Hints of the existence of Axion-Like-Particles from the gamma-ray spectra of cosmological sources
• X-ray Emission from the Hot ISM and SW Radio Lobe of the Nearby Radio Galaxy Centaurus A
• Fermi Large Area Telescope View of the Core of the Radio Galaxy Centaurus A
• Detecting Axion-Like Particles With Gamma Ray Telescopes
• A Statistical Analysis of Supersymmetric Dark Matter in the MSSM after WMAP
• Very High Energy Gamma-Ray Observations of a Strong Flaring Activity in M87 in 2008 February
• VERITAS 2008 - 2009 monitoring of the variable gamma-ray source M87
• M87: A Misaligned BL LAC?
• Multi-GeV photons from electron-dark matter scattering near Active Galactic Nuclei
• A model for the electromagnetic spectrum of the inner jets of Cen A

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• Blazar-Boosted Dark Matter: Novel Signatures via Elastic and Inelastic Scattering
• High-Energy Neutrinos from Cosmic-Ray Scatterings with Supernova Neutrinos