We have analysed the angular clustering of X-ray selected active galactic nuclei (AGN) in different flux-limited sub-samples of the Chandra Deep Field North (CDF-N) and South (CDF-S) surveys. We find a strong dependence of the clustering strength on the sub-sample flux-limit, a fact which explains most of the disparate clustering results of different XMM and Chandra surveys. Using Limber's equation, we find that the inverted CDF-N and CDF-S spatial clustering lengths are consistent with direct spatial clustering measures found in the literature, while at higher flux-limits the clustering length increases considerably; for example, at fx,limit10−15erg/s/cm−2weobtainr017+−5and18+−3h−1Mpc,fortheCDF−NandCDF−S,respectively.Weshowthattheobservedflux−limitclusteringtrendhintstowardsanX−rayluminositydependentclusteringofX−rayselected,z\sim 1$, AGNs.
@article{arxiv.0712.3072,
title = {Luminosity Dependent X-ray AGN Clustering ?},
author = {M. Plionis and M. Rovilos and S. Basilakos and I. Georgantopoulos and F. Bauer},
journal= {arXiv preprint arXiv:0712.3072},
year = {2017}
}