Absorption models for low-frequency variability in compact radio sources

@inproceedings{Marscher1979AbsorptionMF,
  title={Absorption models for low-frequency variability in compact radio sources},
  author={Alan Patrick Marscher},
  year={1979}
}
The possibility that low-frequency (v or approx. =10/sup 5/ cm/sup -3/), photoionized cloud is found to be the most favorable mechanism by which changes in optical depth can cause the observed flux variations.The model predicts strong optical absorption lines, (O III) lambdalambda4959, 5007 emission, and Faraday rotation in many low-frequency variables. Furthermore, optical (and, by inference, ultraviolet) outbursts should be accompanied by decreases in the low-frequency radio flux. However… CONTINUE READING