We report on a multiband variability and correlation study of the TeV blazar Mrk 421 during an exceptional flaring activity observed from 2013 April 11 to 19...
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PublicationUnraveling the Complex Behavior of Mrk 421 with Simultaneous X-Ray and VHE Observations during an Extreme Flaring Activity in 2013 April
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PublicationVariability and evolution of the optical polarization of a sample of gamma-ray blazars
We present a polarization variability analysis of a sample of 26 γ-ray blazars monitored by the Steward Observatory between 2008 and 2018 in the optical band...
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PublicationVariable Very High Energy γ-Ray Emission from Markarian 501
The blazar Mrk 501 was observed at energies above 0.10 TeV with the MAGIC Telescope from 2005 May through July. The high sensitivity of the instrument enabled...
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PublicationVisible and near-infrared monitoring of 3C279 in 1988-89
Near infrared monitoring taken with the 1.5 m Carlos Sanchez Telescope in Tenerife of the decline of 3C279 during its 1988 outburst is presented. These data are...
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PublicationVLT Optical Spectroscopy of BL Lac Objects
We report here the first results of a program aimed at obtaining high signal to noise (up to ~ 500) optical spectroscopy of a large sample of BL Lac objects...
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PublicationWhat Is the Redshift of the Gamma-ray BL Lac Source S4 0954+65?
High signal-to-noise ratio spectroscopic observations of the BL Lac object S4 0954+65 at the alleged redshift z = 0.367 are presented. This source was detected...