Add to ORKGLarge, homogeneous quasar samples are necessary tools for the study of QSO statistics, cosmological tests, large scale structure and AGN evolution. These samples must be complete within well defined flux limits at all redshifts. An observational strategy without previous photometric selection of quasar candidates is described, based essentially on the VIRMOS Survey spectroscopy
Quasars (QSOs) are extremely luminous active galatic nuclei currently observed up to redshift $z=7.6...
High-redshift quasars are currently the only probes of the growth of supermassive black holes and po...
The spectral indexes distribution of a quasar sample is derived from a far-UV survey. A red average ...
Quasars (QSOs) are extremely luminous active galactic nuclei currently observed up to redshift z = 7...
This thesis is concerned with the cosmological evolution of quasars. I describe the construction of ...
Highly accreting quasars are possible cosmological probes, as their Eddington ratio is expected to s...
For 15 bright (V3) quasars, we have obtained IR spectra and photometry, and optical spectrophotometr...
Quasars accreting matter at very high rates (known as extreme Population A [xA] or super-Eddington a...
This thesis presents the discovery of the first luminous z & 6.5 quasars in the VISTA kilo-degree In...
Open Access.-Attribution 4.0 International (CC BY 4.0)The last 25 years saw a major step forward in ...
This paper describes the simulation of realistic Monte-Carlo extragalactic catalogues, aimed at comp...
We present a new catalogue of ∼2400 optically selected quasars with spectroscopic redshifts and X-ra...
We present a quasar candidate identification technique based on multicolor photometry. The tradition...
We present the results of a model-independent investigation of the rest-frame UV spectra from a comp...
Nuclear Activity in Galaxies Across Cosmic Time, Proceedings of the conference held 7-11 October 201...
Quasars (QSOs) are extremely luminous active galatic nuclei currently observed up to redshift $z=7.6...
High-redshift quasars are currently the only probes of the growth of supermassive black holes and po...
The spectral indexes distribution of a quasar sample is derived from a far-UV survey. A red average ...
Quasars (QSOs) are extremely luminous active galactic nuclei currently observed up to redshift z = 7...
This thesis is concerned with the cosmological evolution of quasars. I describe the construction of ...
Highly accreting quasars are possible cosmological probes, as their Eddington ratio is expected to s...
For 15 bright (V3) quasars, we have obtained IR spectra and photometry, and optical spectrophotometr...
Quasars accreting matter at very high rates (known as extreme Population A [xA] or super-Eddington a...
This thesis presents the discovery of the first luminous z & 6.5 quasars in the VISTA kilo-degree In...
Open Access.-Attribution 4.0 International (CC BY 4.0)The last 25 years saw a major step forward in ...
This paper describes the simulation of realistic Monte-Carlo extragalactic catalogues, aimed at comp...
We present a new catalogue of ∼2400 optically selected quasars with spectroscopic redshifts and X-ra...
We present a quasar candidate identification technique based on multicolor photometry. The tradition...
We present the results of a model-independent investigation of the rest-frame UV spectra from a comp...
Nuclear Activity in Galaxies Across Cosmic Time, Proceedings of the conference held 7-11 October 201...
Quasars (QSOs) are extremely luminous active galatic nuclei currently observed up to redshift $z=7.6...
High-redshift quasars are currently the only probes of the growth of supermassive black holes and po...
The spectral indexes distribution of a quasar sample is derived from a far-UV survey. A red average ...