
%0 Journal Article
%A Hoyle, F 
%A Ellis, GRA 
%T On the Existence of an Ionized Layer about the Galactic Plane
%J Australian Journal of Physics
%D 1963/03/01
%V 16
%N 1
%P 1-7
%K 
%R https://doi.org/10.1071/PH630001
%U https://www.publish.csiro.au/paper/PH630001 
%X The radio frequency spectrum observed in directions towards the galactic pole shows a maximum near 5 Mc/s. It seems unlikely that the synchrotron process responsible for the emission can give such a maximum and it is suggested that the observed fall in the flux density at lower frequencies is caused by absorption in an ionized layer parallel to the galactic plane. 
