2015/10/10 by Liliana Altamirano-Dévora, L. Altamirano-Dévora, T. Miyaji +12
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics of Galaxies (astro-ph.GA) #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Gamma-ray bursts and supernovae #astro-ph.CO #astro-ph.GA
paper · pdf · doi:10.48550/arxiv.1510.02861
10 pages, 3 figures, RevMexAA accepted
openalex publication_date 2015/10/10 · arxiv created 2015/10/28 · arxiv updated 2015/10/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Motivated by recent inferred form of the halo occupation distribution (HOD) of X-ray selected AGNs, in the COSMOS field by Allevato et al. (2012), we investigate the HOD properties of moderate X-ray luminosity Active Galactic Nuclei (mXAGNs) using a simple model based on merging activity between dark matter halos (DMHs) in a Λ-CDM cosmology. The HODs and number densities of the simulated mXAGNs at z=0.5, under the above scenarios to compare with Allevato et al. (2012) results. We find that the simulated HODs of major and minor mergers, and the observed for mXAGNs are consistent among them. Our main result is that minor mergers, contrary to what one might expect, can play an important role in activity mAGNs.