The radial extinction profiles of late-type galaxies
  We have used UV (FOCA) and FIR (IRAS) images of six nearby late type galaxies to study the radial variation of the UV extinction (deduced from the FIR/UV ratio). We compare the UV extinction gradient with other extinction indicators (Balmer decrement) and search for a relation between the extinction, the metallicity and the gas surface density among our galaxies. We detect in our small sample a clear relation between extinction and metallicity. These observed relations are used to calibrate an empirical recipe useful for extinction correction in the UV, visible and near-infrared images of late type galaxies. 
S. Boissier (1), A. Boselli (2), V. Buat (2), J. Donas (3), B.   Milliard (4) ((1) Carnegie Observatories, Pasadena (2) Labo...