Optical and radio behaviour of the BL Lacertae object 0716+ 714
CM Raiteri, M Villata, G Tosti, R Nesci… - Astronomy & …, 2003 - aanda.org
Eight optical and four radio observatories have been intensively monitoring the BL Lac
object 0716+ 714 in the last years: 4854 data points have been collected in the UBVRI …
object 0716+ 714 in the last years: 4854 data points have been collected in the UBVRI …
Optical and radio variability of the BL Lacertae object AO 0235+ 16: A possible 5-6 year periodicity
CM Raiteri, M Villata, HD Aller, MF Aller, J Heidt… - Astronomy & …, 2001 - aanda.org
The BL Lacertae object AO 0235+ 16 is well known for its extreme optical and radio
variability. New optical and radio data have been collected in the last four years by a wide …
variability. New optical and radio data have been collected in the last four years by a wide …
The dual nature of blazar fast variability: Space and ground observations of S5 0716+ 714
CM Raiteri, M Villata, D Carosati… - Monthly Notices of …, 2021 - academic.oup.com
ABSTRACT Blazar S5 0716+ 714 is well-known for its short-term variability, down to intraday
time-scales. We here present the 2-min cadence optical light curve obtained by the TESS …
time-scales. We here present the 2-min cadence optical light curve obtained by the TESS …
The WEBT BL Lacertae Campaign 2000
M Villata, CM Raiteri, OM Kurtanidze… - Astronomy & …, 2002 - aanda.org
We present UBVRI light curves of BL Lacertae from May 2000 to January 2001, obtained by
24 telescopes in 11 countries. More than 15 000 observations were performed in that period …
24 telescopes in 11 countries. More than 15 000 observations were performed in that period …
Results of WEBT, VLBA and RXTE monitoring of 3C 279 during 2006–2007
VM Larionov, SG Jorstad, AP Marscher… - Astronomy & …, 2008 - aanda.org
Context. The quasar 3C 279 is among the most extreme blazars in terms of luminosity and
variability of flux at all wavebands. Its variations in flux and polarization are quite complex …
variability of flux at all wavebands. Its variations in flux and polarization are quite complex …
Multi-colour optical monitoring of eight red blazars
Context. We present the observational results of multi-colour optical monitoring of eight red
blazars from 2003 September to 2004 February. Aims. The aim of our monitoring is to …
blazars from 2003 September to 2004 February. Aims. The aim of our monitoring is to …
Multifrequency monitoring of the blazar 0716+ 714 during the GASP-WEBT-AGILE campaign of 2007
M Villata, CM Raiteri, VM Larionov… - Astronomy & …, 2008 - aanda.org
Aims. Since the CGRO operation in 1991–2000, one of the primary unresolved questions
about the blazar γ-ray emission has been its possible correlation with the low-energy (in …
about the blazar γ-ray emission has been its possible correlation with the low-energy (in …
Periodic oscillations in the intra-day optical light curves of the blazar S5 0716+ 714
We present the results of a periodicity search of 20 intra-day variable optical light curves of
the blazar S5 0716+ 714, selected from a database of 102 light curves spanning over three …
the blazar S5 0716+ 714, selected from a database of 102 light curves spanning over three …
The WEBT BL Lacertae Campaign 2001 and its extension-Optical light curves and colour analysis 1994–2002
M Villata, CM Raiteri, OM Kurtanidze… - Astronomy & …, 2004 - aanda.org
BL Lacertae has been the target of four observing campaigns by the Whole Earth Blazar
Telescope (WEBT) collaboration. In this paper we present light curves obtained by the …
Telescope (WEBT) collaboration. In this paper we present light curves obtained by the …
Optical intra-day variability in blazars
We selected a sample of a dozen blazars which are the prime candidates for simultaneous
multi-wavelength observing campaigns in their outburst phase. We searched for optical …
multi-wavelength observing campaigns in their outburst phase. We searched for optical …