TY - JOUR
T1 - X-ray luminosity functions of different morphological and X-ray type AGN populations
AU - Pović, M.
AU - Pérez García, A. M.
AU - Sánchez-Portal, M.
AU - Bongiovanni, A.
AU - Cepa, J.
AU - Fernández Lorenzo, M.
AU - Lara-López, M. A.
AU - Gallego, J.
AU - Ederoclite, A.
AU - Márquez, I.
AU - Masegosa, J.
AU - Alfaro, E.
AU - Castañeda, H.
AU - González-Serrano, J. I.
AU - González, J. J.
PY - 2013/3
Y1 - 2013/3
N2 - 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.
AB - 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.
KW - Active-Galaxies
KW - Galaxies
KW - Luminosity function
KW - Mass function-X-rays
UR - http://www.scopus.com/inward/record.url?scp=84874463169&partnerID=8YFLogxK
U2 - 10.1002/asna.201211840
DO - 10.1002/asna.201211840
M3 - Artículo
SN - 0004-6337
VL - 334
SP - 288
EP - 299
JO - Astronomische Nachrichten
JF - Astronomische Nachrichten
IS - 3
ER -