Bibcode
Pović, 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.; Castañeda, H.; González-Serrano, J. I.; González, J. J.
Bibliographical reference
Astronomische Nachrichten, Vol.334, Issue 3, p.288
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3
2013
Citations
0
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0
Description
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.
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