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X-ray luminosity functions of different morphological and X-ray typeAGN populations

Abstract: Luminosity functions are one of the most important observational clues when studying galaxy evolution over cosmic time. In this paper we present the X-ray luminosity functions for X-ray detected AGN in the SXDS and GWS fields. The limiting fluxes of our samples are 9.0 ×10?15 and 4.8 ×10?16 erg cm?2 s?1 in the 0.5?7.0 keV band in the two fields, respectively. We carried out analysis in three X-ray bands and in two redshift intervals up to z ? 1.4. Moreover, we derive the luminosity functions for different optical morphologies and X-ray types. We confirm strong luminosity evolution in all three bands, finding the most luminous objects at higher redshift. However, no signs of density evolution are found in any tested X-ray band. We obtain similar results for compact and early-type objects. Finally, we observe the ?Steffen effect?, where X-ray type-1 sources are more numerous at higher luminosities in comparison with type-2 sources.

 Fuente: Astronomische Nachrichten. 2013, 334(83), 288-299

 Editorial: Wiley-VCH Verlag

 Año de publicación: 2013

 Nº de páginas: 11

 Tipo de publicación: Artículo de Revista

 DOI: 10.1002/asna.201211840

 ISSN: 0004-6337,1521-3994

 Proyecto español: AYA2011-29517-C03-01

 Url de la publicación: https://doi.org/10.1002/asna.201211840

Autoría

POVIC, M.

PÉREZ GARCÍA, A.M.

SÁNCHEZ-PORTAL, M.

BONGIOVANNI, A.

CEPA, J.

FERNÁNDEZ LORENZO, M.

LARA-LÓPEZ, M. A.

GALLEGO, J.

EDEROCLITE, A.

MÁRQUEZ, I.

MASEGOSA, J.

ALFARO, E.

GONZÁLEZ, J. J.