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Título:
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The evolution of the X-ray luminosity functions of unabsorbed and absorbed AGNs out to z ~ 5
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Autores:
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Aird, J. ;
Coil, A. L. ;
Georgakakis, A. ;
Nandra, K. ;
Barro, G. ;
Pérez González, Pablo Guillermo
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Tipo de documento:
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texto impreso
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Editorial:
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Wiley, 2015-07-01
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Astrofísica
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Materia = Ciencias: Física: Astronomía
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Tipo = Artículo
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Resumen:
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We present new measurements of the evolution of the X-ray luminosity functions (XLFs) of unabsorbed and absorbed active galactic nuclei (AGNs) out to z ~ 5. We construct samples containing 2957 sources detected at hard (2-7 keV) X-ray energies and 4351 sources detected at soft (0.5-2 keV) energies from a compilation of Chandra surveys supplemented by wide-area surveys from ASCA and ROSAT. We consider the hard and soft X-ray samples separately and find that the XLF based on either (initially neglecting absorption effects) is best described by a new flexible model parametrization where the break luminosity, normalization, and faint-end slope all evolve with redshift. We then incorporate absorption effects, separately-modelling the evolution of the XLFs of unabsorbed (20
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En línea:
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https://eprints.ucm.es/33806/1/perezgonzalez154preprint.pdf
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