Constraints on Massive Axion-Like Particles from X-ray Observations of NGC1275
arXiv:1712.08313 · doi:10.1093/mnras/sty1591
Abstract
If axion-like particles (ALPs) exist, photons can convert to ALPs on passage through regions containing magnetic fields. The magnetised intracluster medium of large galaxy clusters provides a region that is highly efficient at ALP-photon conversion. X-ray observations of Active Galactic Nuclei (AGNs) located within galaxy clusters can be used to search for and constrain ALPs, as photon-ALP conversion would lead to energy-dependent quasi-sinusoidal modulations in the X-ray spectrum of an AGN. We use Chandra observations of the central AGN of the Perseus Cluster, NGC1275, to place bounds on massive ALPs up to m_a ~ 10^-11 eV, extending previous work that used this dataset to constrain massless ALPs.
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Cited by in corpus (13)
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- Searching for Axion-Like Particles with X-ray Polarimeters
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- Accelerating the search for Axion-Like Particles with machine learning
- Photon-axion mixing in thermal emission of isolated neutron stars
- Magnetohydrodynamics predicts heavy-tailed distributions of axion-photon conversion
- Towards constraining axions with polarimetric observations of the isolated neutron star RX J1856.5-3754