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Galaxy and AGN Evolution in the MIR: a combined Spitzer and X-ray view

C. Gruppioni·F. Pozzi·A. Comastri·C. Vignali·G. Rodighiero·.
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Abstract

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.

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C. Gruppioni, F. Pozzi, A. Comastri, C. Vignali, G. Rodighiero, .. 2006-10-24. Galaxy and AGN Evolution in the MIR: a combined Spitzer and X-ray view. https://arxiv.org/abs/astro-ph/0610711

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