Low Frequency Radio Emission and Star Formation in the Nuclei of Infrared Galaxies
Source: Astrophysics and Space Science, Volume 252, Numbers 1-2, 1997 , pp. 107-114(8)
Abstract:Results of radio observations of luminous and ultraluminous infrared galaxies are discussed. The declining or flattening of the radio spectra of compact and (in some cases) extended sources found using interplanetary scintillation observations at 102 MHz is accounted for by absorption in thermal plasma, in agreement with the observed brightness of optical emission lines. It is argued that a region of violent star formation occupies the area of a molecular disc ∼ 1 kpc in size. The discrepancy between the linear sizes of the compact radio sources and the star forming regions is discussed.
Document Type: Regular Paper
Publication date: January 1, 1997