Measurements of optical emission-line flux variations based on spectra of the Seyfert galaxy NGC 5548 obtained between December 1988 and October 1989 are...
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PublicaciónSteps toward determination of the size and structure of the broad-line region in active galactic nuclei. IV - Intensity variations of the optical emission lines of NGC 5548
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PublicaciónSteps toward determination of the size and structure of the broad-line region in active galatic nuclei. 8: an intensive HST, IUE, and ground-based study of NGC 5548
We present the data and initial results from a combined Hubble Space Telescope (HST)/IUE/ground-based spectroscopic monitoring campaign on the Seyfert 1 galaxy...
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NoticiaTelescopios de La Palma participan en el hallazgo de un joven blázar resultado de la fusión de dos galaxias
Un equipo internacional de científicos ha obtenido la primera detección inequívoca de un chorro de material a altísima velocidad que emerge de una galaxia en...
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PublicaciónTesting the anisotropy of the central engine from extended emission line regions
Predictions about the angular behavior of the emission line spectrum from the ENLR for three plausible models of the nuclear engine are presented. Results are...
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PublicaciónThe Cavity of 3CR 196.1: Hα Emission Spatially Associated with an X-Ray Cavity
We present a multifrequency analysis of the radio galaxy 3CR 196.1 (z=0.198), associated with the brightest galaxy of the cool-core cluster CIZAJ0815.4-0303...
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PublicaciónThe central parsecs of AGN across the electromagnetic spectrum
High angular resolution observations across the electromagnetic spectrum of the nearest AGN are providing a view of the nuclear region rather different from-...
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PublicaciónThe circumstellar region of NGC 5728
A 2D array of optical fibers generating simultaneous spectral and spatial information has been used to observe the central 13 arcsec of NGC 5728; on this basis...
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PublicaciónThe complex narrow line region in NGC 4151
New narrow band images of NGC 4151, taken in excellent seeing conditions with the 4.2-m William Herschel Telescope on La Palma are presented. These reveal a...
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PublicaciónThe complex narrow-line region in NGC 4151
New narrow-band images of NGC 4151, taken in excellent seeing conditions with the 4.2-m William Herschel Telescope are presented. These reveal a wealth of...