Imaginary images and Stokes phenomena in the weak plasma lensing of coherent sources

  title={Imaginary images and Stokes phenomena in the weak plasma lensing of coherent sources},
  author={Dylan L Jow and Fanglei Lin and E. Tyhurst and Ue-li Pen},
  journal={Monthly Notices of the Royal Astronomical Society},
  • Dylan L Jow, F. Lin, U. Pen
  • Published 15 March 2021
  • Physics
  • Monthly Notices of the Royal Astronomical Society
The study of astrophysical plasma lensing, such as in the case of extreme scattering events, has typically been conducted using the geometric limit of optics, neglecting wave effects. However, for the lensing of coherent sources such as pulsars and fast radio bursts, wave effects can play an important role. Asymptotic methods, such as the so-called Eikonal limit, also known as the stationary phase approximation, have been used to include first-order wave effects; however, these methods are… 

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