3C 227 (z = 0.085) exhibits one of the more spectacular extended nebulosities to be found among active galaxies at moderate redshifts. The gas can be traced to...
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PublicationThe extended nebulosity in the radio galaxy 3C 227
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PublicationThe Fermi-LAT Lightcurve Repository
The Fermi Large Area Telescope (LAT) lightcurve repository (LCR) is a publicly available, continually updated library of gamma-ray lightcurves of variable Fermi...
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PublicationThe Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope: Data Release 3
An incremental version of the fourth catalog of active galactic nuclei (AGNs) detected by the Fermi Large Area Telescope is presented. This version (4LAC-DR3)...
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NewsThe Gran Telescopio Canarias finds the farthest black hole that belongs to a rare family of galaxies
An international team of astronomers has identified one of the rarest known classes of gamma-ray emitting galaxies, called BL Lacertae, within the first 2...
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PublicationThe influence of relativistic kinematics on the asymmetry of spectral line profiles and the observed asymmetries in AGN's
The influence of general relativistic effects on spectral line profiles is studied. Some peculiarities observed in the profiles of broad lines of AGNs, like the...
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PublicationThe nuclear and extended mir-infrared emission of Seyfert galaxies
We present subarcsecond resolution mid-infrared (MIR) images obtained with 8-10 m-class ground-based telescopes of a complete volume-limited (DL
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PublicationThe nuclear region of the Sbc spiral galaxy NGC 5055: a mildly active nucleus.
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PublicationThe optical and UV spectrum of the Seyfert type 2 galaxy NGC 3393
The combined UV and optical spectrum of the Seyfert type 2 galaxy NGC 3393 is presented and analyzed together with published IR and IRAS data. The conditions in...
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PublicationThe radio source and bipolar nebulosity in the Seyfert galaxy NGC 3516
Results of radio continuum and optical emission-line observations of the type 1 Seyfert galaxy NGC 3516 are presented. The radio maps reveal an elongated one...