the cfa sample of seyfert galaxies is the standard for most agn studies in the near universe. the complete sample is being studied by iso with imaging and photometry in the 200-15 um and low resolution spectroscopy in the 2-12um range. we propose to complement the iso database with sws02 of the brightest members of the sample, i.e. f(12um)>=300mjy, for which high quality line spectroscopy is guaranteed. we propose to observe the high ionization lines: [nev]14.3, [oiv]25.9 and [mgviii]3.03 um (plus [siix] which appear to be the strongest in recent sws spectra of agn. the study of these lines will allow us to: 1) infer on the shape and strength of the usually absorbed 50-200 ev ionizing spectrum in seyferts; 2) discuss the emission processes on the basis of photoionization plus shocks composite models.
Instrument
SWS02
Temporal Coverage
1997-02-01T18:54:05Z/1998-01-30T02:08:52Z
Version
1.0
Mission Description
The Infrared Space Observatory (ISO) was the world's first true orbiting infrared observatory. Equipped with four highly-sophisticated and versatile scientific instruments, it was launched by Ariane in November 1995 and provided astronomers world-wide with a facility of unprecedented sensitivity and capabilities for a detailed exploration of the Universe at infrared wavelengths.
European Space Agency, 1999, The Cfa Sample Of Seyfert Galaxies: Follow-Up Line Spectroscopy With Sws, 1.0, European Space Agency, https://doi.org/10.5270/esa-zix7ezy
