Hubble Space Telescope (HST) observations have led to the discovery of the optical counterpart of the radio jet of PKS 2201+044 and to a detailed analysis of...
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PublicationHubble Space Telescope Observations of the Optical Jets of PKS 0521-365, 3C 371, and PKS 2201+044
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PublicationInfranight infrared spectral variability in OJ 287
We present results from five nights of pseudo-simulations JHK infrared monitoring of the blazar OJ 287 taken with the Carlos Sanchez Telescope during March 1991...
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PublicationInfrared astronomy
The physics of infrared emission processes is examined, taking into account black body radiation, radiation from dust particles, thermal plasma emission...
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PublicationInfrared properties of blazars: putting the GASP-WEBT sources into context
The infrared properties of blazars can be studied from the statistical point of view with the help of sky surveys, like that provided by the Wide-field Infrared...
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PublicationInsights into the emission of the blazar 1ES 1011+496 through unprecedented broadband observations during 2011 and 2012
Context. 1ES 1011+496 (z = 0.212) was discovered in very high-energy (VHE, E> 100 GeV) γ rays with MAGIC in 2007. The absence of simultaneous data at lower...
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PublicationInsights into the High-energy γ-ray Emission of Markarian 501 from Extensive Multifrequency Observations in the Fermi Era
We report on the γ-ray activity of the blazar Mrk 501 during the first 480 days of Fermi operation. We find that the average Large Area Telescope (LAT) γ-ray...
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PublicationIntense blazar activity in the photopolarimetric light curve of OJ 287
We present a detailed analysis on photopolarimetric monitoring on OJ 287 conducted at the Nordic Optical Telescope during January 1991. Large rapid variations...
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PublicationInternight and intranight variations in the wavelength dependent polarization of OJ 287
Simultaneous UBVRI photopolarimetric observations of the highly variable BL Lac object OJ 287 have been obtained on six nights. The polarization and position...
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PublicationInvestigating the peculiar emission from the new VHE gamma-ray source H1722+119
The Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescopes observed the BL Lac object H1722+119 (redshift unknown) for six consecutive nights between...