The Clustering of AGN Using Photometric Redshifts

Elias Koulouridis

Antonis Georgakakis

National Observatory of Athens

Previous Results

A. Coil et al. 2009 projected cross-correlation function (wp) in AEGIS of 132 X-ray AGNs with 4669 galaxies from DEEP2 survey.

Limitations

Deep2 is a unique catalogue of spectroscopic redshifts.

Small number of X-ray AGN in AEGIS/DEEP2.

Other studies are not possible, like the study of the Luminosity dependent evolution of the AGN clustering.

Limitations

Log(Lbol/Lo)

Hopkins et al. 2007

Bias

b(L)

Probability Density Function (PDF) of Photometric Redshifts

Binned distribution with dz=0.04 from z=0 up to z=6

Our redshift bin is ±300 h -1Mpc = 5 bins in the PDF

Samples

110 X-ray detected AGN galaxies in AEGIS/CFHTLS

~21000 PDFs ~106 random galaxies

Results

--- spectrum z (A. Coil et al. 2009)

--- photometric z

Future WorkPossible fields : • Lockman-Hole• XMM-LSS• CFHTLS D4• Chandra Deep Field

North• Chandra Deep Field

South• Cosmos • Subaru-XMM (UDS)

} CFHTLS