Bias in apparent dispersion measure due to de-magnification of plasma lensing on background radio sources

@inproceedings{Er2021BiasIA,
  title={Bias in apparent dispersion measure due to de-magnification of plasma lensing on background radio sources},
  author={Xinzhong Er and Jiangchuan Yu and Adam Rogers and Shih-Lun Liu and Shude Mao},
  year={2021}
}
  • X. Er, Jiangchuan Yu, +2 authors S. Mao
  • Published 24 November 2021
  • Physics
The effect of ionized gas on the propagation of radio signals is known as plasma lensing. Unlike gravitational lensing, plasma lensing causes both magnification and strong de-magnification effects to background sources. We study the cross section of plasma lensing for two density profiles, the Gaussian and power-law models. In general, the cross section increases with the density gradient. Radio sources can be used to measure the free electron density along the line of sight. However, plasma… 

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