PG 1553 + 113 is one of the few blazars with a convincing quasi-periodic emission in the gamma-ray band. The source is also a very high energy (VHE; >100 GeV)...
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PublicationThe variability patterns of the TeV blazar PG 1553 + 113 from a decade of MAGIC and multiband observations
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PublicationThe variability patterns of the TeV blazar PG 1553 + 113 from a decade of MAGIC and multiband observations
PG 1553 + 113 is one of the few blazars with a convincing quasi-periodic emission in the gamma-ray band. The source is also a very high energy (VHE; >100 GeV)...
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PublicationThe WEBT BL Lacertae Campaign 2000
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...
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PublicationThe WEBT BL Lacertae Campaign 2001 and its extension. Optical light curves and colour analysis 1994-2002
BL Lacertae has been the target of four observing campaigns by the Whole Earth Blazar Telescope (WEBT) collaboration. In this paper we present UBVRI light...
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PublicationThe WEBT campaign on the BL Lac object PG 1553+113 in 2013. An analysis of the enigmatic synchrotron emission
A multifrequency campaign on the BL Lac object PG 1553+113 was organized by the Whole Earth Blazar Telescope (WEBT) in 2013 April-August, involving 19 optical...
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PublicationThe z=0.558 absorption system towards PKS 0118-272: A candidate Damped LY α system at low redshift.
We present a study of the MgII absorption system at z=0.558 towards the BL Lac object PKS 0118-272 based on high resolution spectra (λ/{DELTA}λ=~2x10^4^)...
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PublicationUBVRI observations of BL Lacertae objects
A total of 85 UBVRI observations of BL Lac objects is presented. For most of them, an average continuum can be traced by means of well-defined color indices...
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PublicationUBVRI observations of quasars
UBVRI observations of 37 QSOs are reported. The sample is considered as a good representation of the bright (V not greater than 17) quasars in the compilation...
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PublicationUnprecedented study of the broadband emission of Mrk 421 during flaring activity in March 2010
Context. Because of its proximity, Mrk 421 is one of the best sources on which to study the nature of BL Lac objects. Its proximity allows us to characterize...