The enormous energy output detected in many cores of galaxies is one of the key issues in the studies of galaxies and their evolution, notwithstanding several...
Kinetic power of quasars and statistical excess of MOJAVE superluminal motions
Aims: The MOJAVE (MOnitoring of Jets in AGN with VLBA Experiments) survey contains 101 quasars with a total of 354 observed radio components that are different...
We have used William Herschel Telescope/INGRID Ks images on two high-latitude fields, the Coppi and Groth strips, to obtain galaxy number counts over ~180...
The COSMOS Survey is currently mapping 0.5 deg2 of sky in optical and near-IR bands to definesamples of compact galaxies at high redshift for spectroscopic...
We present preliminary results of an on going program to study Lyman Alpha Emitters, Lyman Break Galaxies, and Quasars at high redshift with the OSIRIS...
Using deep near-infrared imaging of the Hubble Deep Field-South with the Infrared Spectrometer and Array Camera on the Very Large Telescope, we find six large...
Large Scale Absorbers in the Environment of High-z Radio-Galaxies
We discuss a number of interesting questions that arise from studies of extended absorbers observed in high redshift radio-galaxies. We propose to carry out 2-D...
Large-scale environments of z < 0.4 active galaxies
Context. Properties of galaxies depend on their large-scale environment. As the influence of active galactic nuclei (AGN) in galaxy evolution is becoming more...