No Evidence for Axions from Chandra Observation of the Magnetic White Dwarf RE J0317-853.

@article{Dessert2022NoEF,
  title={No Evidence for Axions from Chandra Observation of the Magnetic White Dwarf RE J0317-853.},
  author={Christopher Dessert and Andrew J. Long and Benjamin R. Safdi},
  journal={Physical review letters},
  year={2022},
  volume={128 7},
  pages={
          071102
        }
}
Axions with couplings g_{aγγ}∼few×10^{-11}  GeV^{-1} to electromagnetism may resolve a number of astrophysical anomalies, such as unexpected ∼TeV transparency, anomalous stellar cooling, and x-ray excesses from nearby neutron stars. We show, however, that such axions are severely constrained by the nonobservation of x rays from the magnetic white dwarf (MWD) RE J0317-853 using ∼40  ks of data acquired from a dedicated observation with the Chandra X-ray Observatory. Axions may be produced in the… 

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