The continuum and emission lines properties of a sample of 73 blazars is studied, investigating differences and similarities among normal low-polarization...
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PublicationAre high polarization quasars and BL Lacertae objects really different? A study of the optical spectral properties.
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PublicationAre radio-loud Broad Absorption Line Quasars young sources?
Studying Broad Absorption Line Quasars (BAL QSOs) is interesting because they probe the physics of the AGN environment, and because AGN outflows are important...
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PublicationAround the Clock Observations of the Q0957+561A,B Gravitationally Lensed Quasar
An observing campaign with 10 participating observatories has undertaken to monitor the optical brightness of the Q0957 gravitationally lensed quasar for 10...
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PublicationAround-the-Clock Observations of the Q0957+561A,B Gravitationally Lensed Quasar. II. Results for the Second Observing Season
We report on an observing campaign in 2001 March to monitor the brightness of the later arriving Q0957+561B image in order to compare with the previously...
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NewsAstronomers find the first galaxy whose ultraviolet luminosity is comparable to that of a quasar
An international scientific team, led by researchers at the Centre for Astrobiology (CAB, CSIC-INTA) and with participation by the Instituto de Astrofísica de...
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PublicationBH mass determination of low redshift quasars
We present the analysis of the photometric and spectroscopic properties of a sample of 29 low redshift (z < 0.6) QSOs for which both HST WFPC2 optical images...
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PublicationBlack hole masses for 14 gravitationally lensed quasars
Aims: We have estimated black hole masses (M BH) for 14 gravitationally lensed quasars using Balmer lines; we also provide estimates based on MgII and CIV...
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PublicationBlack hole virial masses from single-epoch photometry. The miniJPAS test case
Context. Precise measurements of black hole masses are essential to understanding the coevolution of these sources and their host galaxies. Aims: We develop a...
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PublicationBlack hole-galaxy scaling relation evolution from Z̃2.5: Simulated observations with HARMONI on the ELT
We present preliminary results on the potential of HARMONI, the first light integral field spectrograph for the ELT, to explore the evolution of central super...