In 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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PublicaciónA refined sub-grid model for black hole accretion and AGN feedback in large cosmological simulations
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PublicaciónActive Galactic Nuclei Feedback and the Origin and Fate of the Hot Gas in Early-type Galaxies
A 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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PublicaciónAGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst
Context. 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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PublicaciónConstraining the Epoch of Reionization from the Observed Properties of the High-z Universe
We combine observational data on a dozen independent cosmic properties at high-z with the information on reionization drawn from the spectra of distant luminous...
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NoticiaEl Gran Telescopio Canarias encuentra el agujero negro más lejano perteneciente a una rara familia de galaxias
Un equipo internacional de astrónomos ha identificado una rara clase de galaxias que emiten rayos gamma, conocidas como BL Lacertae, dentro de los primeros 2...
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PublicaciónIndividual Estimates of the Virial Factor in 10 Quasars: Implications on the Kinematics of the Broad-line Region
Assuming a gravitational origin for the Fe iiiλλ2039-2113 redshift and using microlensing based estimates of the size of the region emitting this feature, we...
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PublicaciónPrimary Black Hole Spin in OJ 287 as Determined by the General Relativity Centenary Flare
OJ 287 is a quasi-periodic quasar with roughly 12 year optical cycles. It displays prominent outbursts that are predictable in a binary black hole model. The...
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NoticiaRevelada la estructura del famoso chorro de materia de M87, la galaxia más brillante del Cúmulo de Virgo
Un trabajo del Máster en Astrofísica de la Universidad de Barcelona (UB) realizado en el Instituto de Astrofísica de Canarias (IAC) por la alumna Alejandra...
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PublicaciónThe Black Hole Mass-Color Relations for Early- and Late-type Galaxies: Red and Blue Sequences
The tight correlations between supermassive black hole (SMBH) mass (MBH) and the properties of the host galaxy have useful implications for our understanding of...