390 citations · 2.5k across the 48 of their papers we have counts for
4 papers · 2 filters
Circum-galactic medium in the halo of quasars
Riccardo Ottolina, Renato Falomo, Aldo Treves +4
The properties of circum-galactic gas in the halo of quasar host galaxies are investigated analyzing Mg II 2800 and C IV 1540 absorption-line systems along the line of sight close…
An 800-million-solar-mass black hole in a significantly neutral Universe at redshift 7.5
E. Bañados, B. P. Venemans, C. Mazzucchelli +15
Quasars are the most luminous non-transient objects known and as a result they enable studies of the Universe at the earliest cosmic epochs. Despite extensive efforts, however, the…
Physical properties of 15 quasars at
C. Mazzucchelli, E. Bañados, B. P. Venemans +21
Quasars are galaxies hosting accreting supermassive black holes; due to their brightness, they are unique probes of the early universe. To date, only few quasars have been reported…
Rapidly star-forming galaxies adjacent to quasars at redshifts exceeding 6
Roberto Decarli, Fabian Walter, Bram P. Venemans +11
The existence of massive ( solar masses) elliptical galaxies by redshift z~4 (when the Universe was 1.5 billion years old) necessitates the presence of galaxies with star-…