The following document lists the file abstract/GRIEKE_SEYFERT2.abs
from catalogue VI/111.
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===================================================================== ==> In this proposal, more time is being requested for GRIEKE.SEYF ===================================================================== Seyfert 2 nuclei appear to live in galaxies with an elevated rate of star formation compared with field galaxies or the host galaxies of Seyfert 1 nuclei. In addition, the Seyfert 2 hosts have a higher incidence of morphological distortions such as bars, oval bulges, and strong interactions that are thought both to enhance star formation rates and possibly to help funnel gas in toward an AGN. Surprisingly, we find that the Seyfert 2 hosts do NOT have an elevated rate of CO emission compared with Seyfert 1s. This violation of the usual proportionality between far infrared and CO suggests that the elevated star formation is not occurring exactly as in field galaxies, but that it may be causally connected to the nuclear activity. To test this connection, we have selected a sample of Seyfert galaxies with strong star formation and which can be well resolved by ISO. We have determined the specific observations required to resolve these galaxies that are NOT included in the guaranteed time and we propose to obtain these data. We are currently scheduled to image 8 of these galaxies and we request here the time required to add the members of our original sample that could not be observed previously as well as to supplement the sample to bring the total to 15. Because we have carefully selected galaxies that can be well resolved by ISO, these images will account for a large portion of the Seyfert hosts whose mid infrared structure will be studied by ISO. The images will allow us to determine the relationships among: 1.) morphological structures known to enhance star formation; 2.) the star formation itself; and 3.) the AGN.