111 citations · 344 across the 9 of their papers we have counts for
12 papers · 1 filter
Incidence of the host galaxy on the measured optical linear polarization of blazars
I. Andruchow, Sergio A. Cellone, Gustavo E. Romero
We study the incidence of the underlying host galaxy light on the measured optical linear polarization of blazars. Our methodology consists of the implementation of simulated obser…
Galaxy populations in the Antlia cluster. I. Photometric properties of early-type galaxies
A. V. Smith Castelli, L. P. Bassino, T. Richtler +3
We present the first colour-magnitude relation (CMR) of early-type galaxies in the central region of the Antlia cluster, obtained from CCD wide-field photometry in the Washington p…
Unveiling the nature of INTEGRAL objects through optical spectroscopy. VI. A multi-observatory identification campaign
N. Masetti, E. Mason, L. Morelli +18
Using 8 telescopes in the northern and southern hemispheres, plus archival data from two on-line sky surveys, we performed a systematic optical spectroscopic study of 39 putative c…
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…
Multifrequency variability of the blazar AO 0235+164. The WEBT campaign in 2004-2005 and long-term SED analysis
C. M. Raiteri, M. Villata, M. Kadler +3
A huge multiwavelength campaign targeting the blazar AO 0235+164 was organized by the Whole Earth Blazar Telescope (WEBT) in 2003-2005 to study the variability properties of the so…