Abstract
The authors have carried out observations of the radio continuum, Hα, CO(1-0) and CO(2-1) and near infrared (J, H and K) emission from the early-type barred spiral galaxy NGC 1326. The main result is that they have detected in the radio continuum and in Hα a circumnuclear structure that would correspond to a so-called nuclear ring at a mean distance of about 300 pc from the nucleus. The mean radio continuum spectral index, using the integrated total fluxes is α = -0.7 (Sν ≡ να), but it is flatter when using the fluxes of individual sources suggesting a superposition of thermal and non-thermal radiation. The radio continuum and Hα emissions indicate an enhanced star formation activity in the ring giving rise to the thermal emission from H II regions and the nonthermal emission from the evolution of massive stars into supernovae and supernova remnants.
