News
A galaxy which outshines the rest
Gas is essential to the process of forming a galaxy. During the first stages the amount of gas present determines the number of stars which will be in the...
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PublicationAccretion tori and cones of ionizing radiation in Seyfert galaxies
The photoionization of extended narrow-line regions in Seyfert galaxies by the radiation produced in a thick accretion disk is studied. The emission-line...
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PublicationActive galactic nuclei and nuclear starbursts.
The Starburst model for radio-quiet Active Galactic Nuclei (AGN) postulates that the activity seen in most AGN is powered solely by young stars and compact...
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PublicationAdaptive Optics Observations of Active Galactic Nuclei: Zooming into the Central Parsec Region
First results from the AGN-Heidelberg program aimed at resolving the central pc region of the closest Active Galactic Nuclei in the IR are presented. The core...
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PublicationAn idealized model for dust accretion in active galactic nuclei
With an adequate supply of matter, the inward drifting of dust particles induced by the Poynting-Robertson effect can lead to the formation of a shell or disk...
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PublicationAn optical fiber system to perform bidimensional spectroscopy
This article describes a fiber optic system contrived to perform spectral imaging of extended objects. It consists of two fiber bundles mounted simultaneously...
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PublicationAre the extended narrow line regions in AGN photoionized by the emission from thick accretion disks?
We study the photoionization of the Extended Narrow Line Region (ENLR) using three anisotropic radiation fields: (1) a geometrically thick accretion disk; (2) a...
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NewsAstronomers develop new method for taking the temperature of black holes
An international research team led by researchers at the Instituto de Astrofísica de Canarias (IAC) has found a new method for measuring the masses of black...
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NewsAstronomers discover rapid oscillations in the light of a blazar
The international collaboration Whole Earth Blazar Telescope (WEBT), in which researchers from the Instituto de Astrofísica de Canarias (IAC) participate, has...