Bibcode
Ramos Almeida, C.; Ricci, Claudio
Referencia bibliográfica
Nature Astronomy, Volume 1, p. 679-689
Fecha de publicación:
10
2017
Número de citas
225
Número de citas referidas
203
Descripción
The material surrounding accreting supermassive black holes connects the
active galactic nucleus with its host galaxy and, besides being
responsible for feeding the black hole, provides important information
on the feedback that nuclear activity produces on the galaxy. In this
Review, we summarize our current understanding of the close environment
of accreting supermassive black holes obtained from studies of local
active galactic nuclei carried out in the infrared and X-ray regimes.
The structure of this circumnuclear material is complex, clumpy and
dynamic, and its covering factor depends on the accretion properties of
the active galactic nucleus. In the infrared, this obscuring material is
a transition zone between the broad- and narrow-line regions, and, at
least in some galaxies, it consists of two structures: an equatorial
disk/torus and a polar component. In the X-ray regime, the obscuration
is produced by multiple absorbers across various spatial scales, mostly
associated with the torus and the broad-line region. In the coming
decade, the new generation of infrared and X-ray facilities will greatly
contribute to our understanding of the structure and physical properties
of nuclear obscuration in active galactic nuclei.
Proyectos relacionados
Actividad Nuclear en Galaxias: una Perspectiva 3D del Núcleo y su Entorno
Nuestro proyecto puede dividirse en dos líneas principales de investigación. En primer lugar, el estudio de los vientos producidos por cuásares luminosos oscurecidos y del impacto que estos tienen en sus galaxias anfitrionas (retroalimentación del AGN). Para ello hemos obtenido observaciones infrarrojas y ópticas con los instrumentos del Gran
Cristina
Ramos Almeida