| |
 |
| Paper: |
Mid- and far-infrared spectroscopy of Seyfert galaxies |
| Volume: |
290, Active Galactic Nuclei: from Central Engine to Host Galaxy |
| Page: |
557 |
| Authors: |
Spinoglio, L.; Malkan, M. A.; Smith, H. A.; Fischer, J. |
| Abstract: |
Infrared line ratio diagrams are a powerful tool to distinguish the different emission components in galaxies. We will focus on two particular examples: The ISO LWS diagram showing the [CII]158um/[OI]63um ratio versus the [OIII]88um/[OI]63um ratio is able to separate AGNs from starburst and PDR emission. The ISO SWS diagram with the [NeVI]7.6um/[OIV]26um ratio versus the [NeV]14um/[NeV]24um ratio is a good tracer of both the ionization potential and the density in the extreme conditions of AGNs, as is shown from photoionization models. Finally the complete mid- to far-IR spectrum of the prototype Seyfert 2 galaxy NGC1068 is shown and discussed. |
|
|
|
|
|
