146 citations · 434 across the 4 of their papers we have counts for
4 papers
The extinction law at high redshift and its implications
S. Gallerani, R. Maiolino, Y. Juarez +9
We analyze the optical-near infrared spectra of 33 quasars with redshifts 3.9<z<6.4 to investigate the properties of dust extinction at these cosmic epochs. The SMC extinction curv…
The metallicity of the most distant quasars
Y. Juarez, R. Maiolino, R. Mujica +5
We investigate the metallicity of the broad line region (BLR) of a sample of 30 quasars in the redshift range 4<z<6.4, by using near-IR and optical spectra. We focus on the ratio o…
Extreme gas properties in the most distant quasars
R. Maiolino, E. Oliva, F. Ghinassi +4
We present near-IR, low resolution spectra of eight of the most distant quasars known, with redshifts in the range 4.9<z<6.4. Half of these quasars are characterized by deep, broad…
Early star formation traced by the highest redshift quasars
R. Maiolino, Y. Juarez, R. Mujica +2
The iron abundance relative to alpha-elements in the circumnuclear region of quasars is regarded as a clock of the star formation history and, more specifically, of the enrichment…