
%0 Journal Article
%A Shain, CA 
%T Galactic Absorption of 19·7 Mc/s Radiation
%J Australian Journal of Physics
%D 1957/03/01
%V 10
%N 1
%P 195-203
%K 
%R https://doi.org/10.1071/PH570195
%U https://www.publish.csiro.au/paper/PH570195 
%X Observations have been made of galactic radiation at a frequency of 19·7 Mc/s .using an aerial having a beamwidth 1°· 4. The effect of an absobing band of H II regions around the galactic equator is clearly seen. Isolated H II regions, some very faint, have been detected in absorption. A detailed study of the sky near the galactic centre shows that the source Sagittarius-A is observed in absorption at 19·7 Mc/s. 
