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Título:
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Investigating evidence for different black hole accretion modes since redshift z ? 1
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Autores:
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Georgakakis, A. ;
Pérez González, Pablo Guillermo ;
Fanidakis, N. ;
Salvato, M. ;
Aird, J. ;
Messias, H. ;
Lotz, J. M. ;
Barro, Guillermo ;
Hsu, Li-Ting ;
Nandra, K. ;
Rosario, D. ;
Cooper, M. C. ;
Kocevski, D. D. ;
Newman, J. A.
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Tipo de documento:
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texto impreso
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Editorial:
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Wiley, 2014-05
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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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Chandra data in the COSMOS, AEGIS-XD and 4 Ms Chandra Deep Field South are combined with multiwavelength photometry available in those fields to determine the rest-frame U ? V versus V ? J colours of X-ray AGN hosts in the redshift intervals 0.1 0.6, such differences are significant at the 2? level only for sources with Eddington ratios ? 10^? 3. These findings are consistent with scenarios in which diverse accretion modes are responsible for the build-up of supermassive black holes at the centres of galaxies. We compare these results with the predictions of theGALFORM semi-analytic model for the cosmological evolution of AGN and galaxies. This model postulates two black hole fuelling modes, the first is linked to star formation events and the second takes place in passive galaxies. GALFORM predicts that a substantial fraction of the black hole growth at z
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En línea:
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https://eprints.ucm.es/id/eprint/38345/1/perezgonzalez10preprint.pdf
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