Probing the Scale of ALP Interactions with Fermi Blazars

Abstract

Gamma-rays from cosmological sources contain information about gamma-ray interactions. Standard model and non-standard model photon interactions along the path between the source and the observer can lead to changes in the energy or state of the photons, which in turn alters the observed energy spectrum of the source. In general, these interactions are a function of photon energy as well as source distance. Here we show how existing high energy (50 GeV -- 10TeV) gamma-ray observations of blazars can be used to constrain the coupling of axion-like-particles (ALPs) to the photon. The same ALP-photon coupling that has been invoked to explain the observations of TeV blazars beyond their pair production horizon is shown to have an effect of the data set of \textit{Fermi} blazars.

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Cited by in corpus (12)

• Constraints on the Intergalactic Magnetic Field with Gamma-Ray Observations of Blazars
• Limits on axion-like particles from Mrk 421 with 4.5-year period observations by ARGO-YBJ and Fermi-LAT
• Constraints on axion-like particle properties with very high energy gamma-ray observations of Galactic sources
• Axion and dark photon limits from Crab Nebula high energy gamma-rays
• Revisiting the analysis of axion-like particles with the Fermi-LAT gamma-ray observation of NGC1275
• Searching for spectral oscillations due to photon-axionlike particle conversion using the Fermi-LAT observations of bright supernova remnants
• Searching for Axion-Like Particles with the Blazar Observations of MAGIC and Fermi-LAT
• The implications of the axion like particle from the Fermi-LAT and H.E.S.S. observations of PG 1553+113 and PKS 2155-304
• Searching for the possible signal of the photon-axionlike particle oscillation in the combined GeV and TeV spectra of supernova remnants
• Effect of axion-like particles on the spectrum of the extragalactic gamma-ray background
• Implications of photon-ALP oscillations in the extragalactic neutrino source TXS 0506+056 at sub-PeV energies
• Relevance of VHE Blazar Spectra Models with Axion-Like Particles