Redshift Distribution in the Spitzer Mid-Infrared Quasar Survey

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We have been undertaking a spectroscopic survey of luminous AGN and quasars selected in the mid-infrared from Spitzer shallow surveys. Mid-infrared selection is much less biased with respect to obscuration than optical techniques, and hence enables the discovery of obscured quasars as well as normal, unobscured ones. Our survey therefore provides an unique opportunity to construct luminosity functions for both obscured and unobscured quasars selected in the same way and covering similar redshifts and luminosities. Here we will present our current progress on the redshift distribution and luminosity function of this sample of type 1 & type 2 AGNs. In the 90% complete sample, we have over 400 confirmed AGN (including both Seyfert and quasar luminosities) from z = 0 to z=4.

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