Propagation Effects in Quiet Sun Observations at Meter Wavelengths
Sharma, Rohit and Divya Oberoi, Propagation Effects in Quiet Sun Observations at Meter Wavelengths, ApJ, 903, 126 (2020) (ADS)
(click on the image for a larger version)
Radio waves can lose their way either by refraction, via large-scale gradients,
or scattering from small-scale structures
("turbulence").
This nice diagram simply emphasizes the point that, at low radio frequencies
especially, a given observing field of view may contain signals from lots
of things.
Here PSF stands for "point-spread function", the intrinsic beam shape of the
telescope optics.
The Archive contains many items imagining scattering in totally different research
areas.
Radio waves can lose their way either by refraction, via large-scale gradients, or scattering from small-scale structures ("turbulence"). This nice diagram simply emphasizes the point that, at low radio frequencies especially, a given observing field of view may contain signals from lots of things. Here PSF stands for "point-spread function", the intrinsic beam shape of the telescope optics. The Archive contains many items imagining scattering in totally different research areas.