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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PublicationA refined sub-grid model for black hole accretion and AGN feedback in large cosmological simulationsIn large-scale cosmological hydrodynamic simulations simplified sub-grid models for gas accretion on to black holes and AGN feedback are commonly used. Such...
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PublicationAbsence of radio-bright dominance in a near-infrared selected sample of red quasarsContext. The dichotomy between red and blue quasars is still an open question. It is debated whether red quasars are simply blue quasars that are observed at...
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PublicationActive Galactic Nuclei Feedback and the Origin and Fate of the Hot Gas in Early-type GalaxiesA recent determination of the relationships between the X-ray luminosity of the ISM (L X) and the stellar and total mass for a sample of nearby early-type...
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PublicationAGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburstContext. The flat-spectrum radio quasar 4C +71.07 is a high-redshift (z = 2.172), γ-loud blazar whose optical emission is dominated by thermal radiation from...
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NewsAstronomers discover how to feed a black holeThe black holes at the centres of galaxies are the most mysterious objects in the Universe, not only because of the huge quantities of material within them...
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NewsAstronomers observe potential magnetic flip around a supermassive black holeAn international research, in which a team from the Instituto de Astrofísica de Canarias (IAC) has participated, has provided new evidence for an enigmatic...
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PublicationBASS. XXV. DR2 Broad-line-based Black Hole Mass Estimates and Biases from ObscurationWe present measurements of broad emission lines and virial estimates of supermassive black hole masses (M BH) for a large sample of ultrahard X-ray-selected...
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PublicationBASS. XXXV. The M <SUB>BH</SUB>-σ* Relation of 105 Month Swift-BAT Type 1 AGNsWe present two independent measurements of stellar velocity dispersions (σ ⋆) from the Ca II H+K λ3969, 3934 and Mg I b λ 5183, 5172, 5167 region (3880-5550 Å)...