HALO OCCUPATION DISTRIBUTIONS OF MODERATE X-RAY AGNS FORMED THROUGH MAJOR AND MINOR MERGERS IN A Lambda-CDM COSMOLOGY
Por:
Altamirano-Devora, L., Miyaji, T., Aceves, H., Castro, A., Canas, R., Tamayo, F.
Publicada:
1 abr 2016
Resumen:
Motivated by the shape of the halo occupation distribution (HOD) of
X-ray selected AGNs in the COSMOS field recently inferred by Allevato et
al., we investigated the HOD properties of moderate X-ray luminosity
active galactic nuclei (mXAGNs) using a simple model based on the
merging activity between dark matter halos (DMHs) in a Lambda CDM
cosmology. The HODs and number densities of the simulated mXAGNs at z =
0.5, under the above scenarios were compared with the results of
Allevato et al. We found that the simulated HODs of major and minor
mergers, and the observed HODs of mXAGNs are consistent. Our main result
is that minor mergers, contrary to what one might expect, can play an
important role in the activity of mAGNs.
Filiaciones:
Altamirano-Devora, L.:
(Corresponding Author), Univ Nacl Autonoma Mexico, Inst Astron, Km 103 Carretera Tijuana Ensenada, Ensenada 22860, Baja California, Mexico
Univ Nacl Autonoma Mexico, Inst Astron, Km 103 Carretera Tijuana Ensenada, Ensenada 22860, Baja California, Mexico
Miyaji, T.:
Univ Nacl Autonoma Mexico, Inst Astron, Km 103 Carretera Tijuana Ensenada, Ensenada 22860, Baja California, Mexico
Aceves, H.:
Univ Nacl Autonoma Mexico, Inst Astron, Km 103 Carretera Tijuana Ensenada, Ensenada 22860, Baja California, Mexico
Castro, A.:
Univ Nacl Autonoma Mexico, Inst Astron, Km 103 Carretera Tijuana Ensenada, Ensenada 22860, Baja California, Mexico
Canas, R.:
Univ Nacl Autonoma Mexico, Inst Astron, Km 103 Carretera Tijuana Ensenada, Ensenada 22860, Baja California, Mexico
Tamayo, F.:
Univ Nacl Autonoma Mexico, Inst Astron, Km 103 Carretera Tijuana Ensenada, Ensenada 22860, Baja California, Mexico
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