We present a sample of the most massive galaxies (M^{*}>10^{11}{M}_{&sun;}) found at z=0 in a fully cosmological simulation performed with MASCLET (Mesh...
Two families of hot stellar systems, named {it `ordinary'/} and {it 'bright'/}, are identified in the ($log R_e, mu_e$) plane built with a luminosity--limited...
From the analysis of radial velocity measurements of the Sun, obtained at Izaña from 1976 to 1985, stable periods longer than 1 day, have been found in the...
The 17 August 2010 stellar occultation by the dwarf-planet 1 Ceres.
We will present preliminary results of the occultation of Tycho star 6833-00163-1 by the dwarf-planet 1 Ceres. The 11.8 visual magnitude star was occulted in...
The 1989 and 2015 outbursts of V404 Cygni: a global study of optical features
The black hole transient V404 Cygni exhibited a bright outburst in June 2015 that was intensively followed over a wide range of wavelengths. Our team obtained...