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An X-ray and MIR perspective on AGN unification

AuthorsCarrera, Francisco J. ; Fernández-Manteca, Pedro; Mateos, Silvia
Issue Date2017
PublisherSociedad Española de Astronomía
CitationProceedings of the XII Scientific Meeting of the Spanish Astronomical Society: 120-124 (2017)
SeriesHighlights on Spanish Astrophysics IX
AbstractWe have investigated the claimed flattening of the X-ray to mid-IR luminosity correlation using the SDSS DR12 QSO sample, correlating it with the XMM DR5 catalogue and UNWISE, to build a large sample of luminous optically-selected type 1 AGN with measured X-ray and mid-IR luminosities (or upper limits to them). We confirm that there is a > 99.9 % significant flattening in the correlation, in the sense that the X-ray luminosity ''saturates'' at the highest mid-IR luminosities. Further work using a direct estimate of the seed optical-UV power will allow discriminating between different explanations for this phenomenon. It may occur because the X-ray generating mechanism cannot keep up with the increase in AGN power, or because the structure of the material reprocessing the primary emission into the mid-IR changes its properties.
DescriptionTrabajo presentado al XII Scientific Meeting of the Spanish Astronomical Society (SEA), celebrado en Bilbao del 18 al 22 de julio de 2016.
Identifiersisbn: 978-84-617-8931-3
Appears in Collections:(IFCA) Libros y partes de libros
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