On the Existence of an Ionized Layer about the Galactic Plane
F Hoyle and GRA Ellis
Australian Journal of Physics
16(1) 1 - 7
Published: 1963
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.
Full text doi:10.1071/PH630001
© CSIRO 1963
