Astrophysical Limits on Very Light Axion-like Particles from Chandra Grating Spectroscopy of NGC 1275

@article{Reynolds2020AstrophysicalLO,
  title={Astrophysical Limits on Very Light Axion-like Particles from Chandra Grating Spectroscopy of NGC 1275},
  author={C. S. Reynolds and M. C. Marsh and H. Russell and A. Fabian and Robyn N. Smith and F. Tombesi and S. Veilleux},
  journal={The Astrophysical Journal},
  year={2020},
  volume={890},
  pages={59}
}
  • C. S. Reynolds, M. C. Marsh, +4 authors S. Veilleux
  • Published 2020
  • Physics
  • The Astrophysical Journal
  • Axions/axion-like particles (ALPs) are a well motivated extension of the Standard Model and are generic within String Theory. The X-ray transparency of the intracluster medium (ICM) in galaxy clusters is a powerful probe of light ALPs (with mass $<10^{-11}\,{\rm eV}$); as X-ray photons from an embedded or background source propagate through the magnetized ICM, they may undergo energy-dependent quantum mechanical conversion into ALPs (and vice versa), imprinting distortions on the X-ray spectrum… CONTINUE READING

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