Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..380..157g&link_type=abstract
At the Edge of the Universe: Latest Results from the Deepest Astronomical Surveys ASP Conference Series, Vol. 380, proceedings o
Astronomy and Astrophysics
Astronomy
Scientific paper
We explore the environment of AGN at z ≈ 1 using a sample of 130 spectroscopically identified X-ray sources in the All-wavelength Extended Groth strip International Survey. We quantify the local density in the vicinity of an X-ray source by measuring the projected surface density of spectroscopically identified optical galaxies within a radius defined by the 3rd nearest neighbour. We find that X-ray selected AGN at z ≈ 1 avoid, on average, underdense regions and share the same environment with optical galaxies of the similar U-B and M_B.
AEGIS Collaboration
Cooper Martin C.
Georgakakis Antonis
Nandra Kirpal
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