On the Anticorrelation Between Galaxy Light Concentration and X-ray-to-Optical Flux Ratio
Abstract
Active Galactic Nuclei (AGN) play an important role in many aspects of the modern cosmology, and of particular interest is the issue of the interplay between AGN and their host galaxy. Using X-ray and optical data sets, we have explored the properties of a large sample of AGNs in the Subaru/XMM-Newton Deep Survey (SXDS) field, and studied their evolution in relation with the evolution of their host galaxy. We present here an anticorrelation between X-ray-to-optical flux ratio (X/O) and galaxy light concentration (C), which has been found for the first time and might suggest that early type galaxies, having poor matter supply to feed the AGN activity, have lower Eddington rates than those of late type galaxies.
Keywords
Cite
@article{arxiv.0907.5099,
title = {On the Anticorrelation Between Galaxy Light Concentration and X-ray-to-Optical Flux Ratio},
author = {M. Pović and M. Sánchez-Portal and A. M. Pérez García and A. Bongiovanni and J. Cepa and M. Fernández Lorenzo and M. A. Lara-López and J. I. González-Serrano and E. J. Alfaro},
journal= {arXiv preprint arXiv:0907.5099},
year = {2015}
}
Comments
9 pages, 3 figures, accepted for publication in ApJ Letters