Six objects with broad emission lines and redshifts from 0.48 to 2.07 were discovered among 736 extragalactic objects in the Canada-France Redshift Survey (CFRS). Although the luminosities of half of the objects are such that they are in the Seyfert regime (MB>-23), all would be designated as quasars in traditional surveys. Since the only selection criterion was that 17.5 ~IAB ~ 22.5, or approximately B < 23 (assuming a continuum power-law slope 0 ( =- 0.5), these quasars represent an unbiased, flux-limited sample. Although uncertain, the implied surface density, 200~~~o deg-Z, is the highest yet measured, and is in good agreement with extrapola-tions from other faint surveys and the evolving luminosity function models of Boyle. The ...
This thesis describes the objectives, design, construction and analysis of the Chile-UK Quasar Surve...
Quasars are galaxies hosting accreting supermassive black holes; due to their brightness, they are u...
International audienceWe report 250 GHz (1.2 mm) observations of a sample of 20 quasars at redshifts...
International audienceWe present discovery imaging and spectroscopy for nine new z ∼ 6 quasars found...
International audienceWe present imaging and spectroscopic observations for six quasars at z ⩾ 5.9 d...
International audienceWe present imaging and spectroscopic observations for six quasars at z >= 5.9 ...
International audienceThe Canada-France High-z Quasar Survey (CFHQS) is an optical survey designed t...
High-redshift quasars are currently the only probes of the growth of supermassive black holes and po...
We report 250 GHz (1.2 mm) observations of a sample of 20 quasars at redshifts 5.8 < z < 6.5 from th...
International audienceBeing observed only one billion years after the Big Bang, z ∼ 7 quasars are a ...
We report 250 GHz (1.2 mm) observations of a sample of 20 quasars at redshifts 5.8 < z < 6.5 from th...
Emission-line quasar characteristics are confirmed for 80% of the objects observed, including at lea...
We report Herschel SPIRE (250, 350, and 500 μm) detections of 32 quasars with redshifts 0.5 ≤z < 3.6...
Luminous quasars at z > 5.6 can be studied in detail with the current generation of telescopes and p...
This thesis describes the objectives, design, construction and analysis of the Chile-UK Quasar Surve...
Quasars are galaxies hosting accreting supermassive black holes; due to their brightness, they are u...
International audienceWe report 250 GHz (1.2 mm) observations of a sample of 20 quasars at redshifts...
International audienceWe present discovery imaging and spectroscopy for nine new z ∼ 6 quasars found...
International audienceWe present imaging and spectroscopic observations for six quasars at z ⩾ 5.9 d...
International audienceWe present imaging and spectroscopic observations for six quasars at z >= 5.9 ...
International audienceThe Canada-France High-z Quasar Survey (CFHQS) is an optical survey designed t...
High-redshift quasars are currently the only probes of the growth of supermassive black holes and po...
We report 250 GHz (1.2 mm) observations of a sample of 20 quasars at redshifts 5.8 < z < 6.5 from th...
International audienceBeing observed only one billion years after the Big Bang, z ∼ 7 quasars are a ...
We report 250 GHz (1.2 mm) observations of a sample of 20 quasars at redshifts 5.8 < z < 6.5 from th...
Emission-line quasar characteristics are confirmed for 80% of the objects observed, including at lea...
We report Herschel SPIRE (250, 350, and 500 μm) detections of 32 quasars with redshifts 0.5 ≤z < 3.6...
Luminous quasars at z > 5.6 can be studied in detail with the current generation of telescopes and p...
This thesis describes the objectives, design, construction and analysis of the Chile-UK Quasar Surve...
Quasars are galaxies hosting accreting supermassive black holes; due to their brightness, they are u...
International audienceWe report 250 GHz (1.2 mm) observations of a sample of 20 quasars at redshifts...