Add functionality for predicting Faraday rotation #3160
Description
Note
I'll need to expand on this at some point when I'm not frantically trying to finish a grant proposal. 😅 For the moment I'm copying content from my Astronomy 253 slides from 2014.
Faraday rotation is a technique to infer information about electron density
When polarized light propagates through a magnetized region with free electrons, the left- and right-circularly polarized components travel with different phase velocities. There is rotation of the electric field vector:
...
Some notes:
- It is hard to disentangle variations in
$n_e$ and$B_∥$ . Three wavelengths are often needed.