Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-10-24
Astronomy and Astrophysics
Astrophysics
4 pages. Proceeding of the conference "Studying Galaxy Evolution with Spitzer and Herschel", Crete, May 28 - June 2, 2006. Eds
Scientific paper
A proper analysis of the evolution of sources emitting in the Mid-Infrared is strongly dependent on their broad-band spectral properties (SEDs) at different redshifts and luminosities and on a reliable classification allowing to disentangle AGN from star-formation activity. The diagnostic diagrams based on the optical line ratios are often ambiguous and/or misleading not allowing a proper separation of the galaxy/AGN populations. Thanks to the combination of deep Spitzer and X-rays data a much better census of the hidden AGN activity and dust-obscured star-forming galaxies can be obtained, constraining galaxy and AGN evolutionary models.
Comastri Andrea
Gruppioni Carlotta
Pozzi Francesca
Rodighiero Giulia
Vignali Christian
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