NEAR-INFRARED AND FAR-INFRARED EMISSION OF SEYFERT-2 GALAXIES AND VARIOUS TYPES OF STAR-FORMING GALAXIES

In order to study the origin of the near and far infrared emission of Seyfert 2 galaxies, we carried out near (J, H, K) infrared photometry of a small sample of Seyfert 2 and various types of star-forming galax ies, selected according to a criterium developed previously (papers I and II) that reveals enhanced star formation. All the galaxies have al so good detections in IRAS bands 25, 60 and 100 mu m. We found a stron g correlation between all the near and far luminosities for the Seyfer t 2 galaxies. In order to explain the position of the galaxies in the J-H, H-K diagram as well as the above mentioned correlation, we conclu de that their near and far infrared emission is dominated by a post-st arburst emission.