Thermal and Nonthermal Components of the Galactic Radiation at 38 MHz for $ 4^\circ < l < 65^\circ$, $ b = 0^\circ$


J. Milogradov-Turin




The separation of components was done by Westerhout's method using surveys of the resolution of $7^\circ.7$ at 38 and 408 MHz. The derived distribution shows that the both components lie mainly inside and at the galactocentric distance of the Sagittarius arm. The nonthermal component is much more intense. The thermal component and optical depth have a distinct maximum in the direction of well known HII regions S54, S49 and S45. The derived nonthermal, emissivity increases with decreasing longitude. Electron density is 0.4 $cm^{-3}$.