We present a joint estimate of the stellar/dark matter mass fraction in lens galaxies and the average size of the accretion disk of lensed quasars based on...
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PublicaciónDark Matter Mass Fraction in Lens Galaxies: New Estimates from Microlensing
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PublicaciónDeciphering Quasar Millilensing How to Distinguish Between Dark and Luminous Lenses
Dwarf-galaxy sized dark matter halos may be detectable when a bright background source is gravitationally lensed on scales of milliarcseconds. Such effects can...
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PublicaciónDeconstructing the narrow-line region of the nearest obscured quasar
We study the physical and kinematic properties of the narrow-line region (NLR) of the nearest obscured quasar MRK 477 (z = 0.037), using optical and near...
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NoticiaDescubren chorros relativistas que producen burbujas en la región central de la galaxia Taza de Té
Un estudio, liderado por la investigadora del Instituto de Astrofísica de Canarias (IAC) Anelise Audibert, revela uno de los procesos que explican la peculiar...
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NoticiaDescubren la primera galaxia cuya luminosidad ultravioleta es comparable a la de un cuásar
Un equipo científico internacional, liderado por investigadores del Centro de Astrobiología (CAB, CSIC-INTA) y con participación del Instituto de Astrofísica de...
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PublicaciónDetecting microvariability in type 2 quasars using enhanced F-test
Microvariability (intranight variability) is a low amplitude flux change at short time-scales (i.e. hours). It has been detected in unobscured type 1 active...
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PublicaciónDetection of an intranight optical hard lag with colour variability in blazar PKS 0735+178
Blazars are a highly variable subclass of active galactic nuclei that have been observed to vary significantly during a single night. This intranight...
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PublicaciónDetection of Chromatic Microlensing in Q 2237 + 0305 A
We present narrowband images of the gravitational lens system Q 2237 + 0305 made with the Nordic Optical Telescope in eight different filters covering the...
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PublicaciónDetection of persistent VHE gamma-ray emission from PKS 1510-089 by the MAGIC telescopes during low states between 2012 and 2017
Context. PKS 1510-089 is a flat spectrum radio quasar strongly variable in the optical and GeV range. To date, very high-energy (VHE, > 100 GeV) emission has...