58 citations · 83 across the 4 of their papers we have counts for
4 papers
GEMINI-GMOS spectroscopy in the Antlia cluster
F. Faifer, A. Smith Castelli, L. P. Bassino +2
We present preliminary results of a spectroscopic study performed in the Antlia cluster through GEMINI-GMOS data. We derived new radial velocities that allow us to confirm the clus…
A common colour-magnitude relation from giant elliptical galaxies to globular clusters?
A. V. Smith Castelli, L. P. Bassino, T. Richtler +3
We discuss the existence of a common colour-magnitude relation (CMR) of metal-poor globular clusters and early-type galaxies, i.e. giant ellipticals, normal ellipticals and lenticu…
Extreme photo-polarimetric behaviour of the blazar AO 0235+164
Sergio A. Cellone, Gustavo E. Romero, Jorge A. Combi +1
We present optical photo-polarimetric observations with high temporal resolution of the blazar AO 0235+164. Our data, the first to test the photo-polarimetric behaviour of this obj…
Extremely violent optical microvariability in blazars: fact or fiction?
Sergio A. Cellone, Gustavo E. Romero, Anabella T. Araudo
Variability amplitudes larger than 1 magnitude over time-scales of a few tens of minutes have recently been reported in the optical light-curves of several blazars. In order to ind…