We present optical spectrophotometric observations for 50 blazars obtained in 13 different campaigns over a 7 year period. The spectral flux distribution is...
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PublicationOptical spectrophotometry of blazars
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PublicationOptical Spectroscopic Survey of a Sample of Unidentified Fermi Objects
We present optical spectroscopy secured at the 10 m Gran Telescopio Canarias of the counterparts of 20 extragalactic γ-ray sources detected by the Fermi...
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PublicationOptical Spectroscopic Survey of a Sample of Unidentified Fermi Objects: II
We report on optical spectroscopy obtained at the 10.4 m Gran Telescopio Canarias of 28 Fermi γ-ray sources that completes the study of a sample of 60 targets...
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PublicationOptical spectroscopy of BL Lac objects: TeV candidates
We investigate the spectroscopic optical properties of gamma-ray sources detected with high significance above 50 GeV in the Third Catalog of Hard Fermi-LAT...
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PublicationOptical spectroscopy of blazars for the Cherenkov Telescope Array
Context. Blazars are the most numerous class of high-energy (HE; E ∼ 50 MeV−100 GeV) and very high-energy (VHE; E ∼ 100 GeV−10 TeV) gamma-ray emitters...
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PublicationOptical spectroscopy of blazars for the Cherenkov Telescope Array - II
Active galactic nuclei (AGNs) make up about 35 per cent of the more than 250 sources detected in very high-energy (VHE) gamma rays to date with the imaging...
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PublicationOptical spectroscopy of blazars for the Cherenkov Telescope Array - III
Context. Blazars, which include BL Lacs and flat-spectrum radio quasars, represent the brightest persistent extragalactic sources in the high-energy (HE; 10 MeV...
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PublicationPG 1553+113: Five Years of Observations with MAGIC
We present the results of five years (2005-2009) of MAGIC observations of the BL Lac object PG 1553+113 at very high energies (VHEs; E > 100 GeV). Power-law...
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PublicationPlanck early results. XV. Spectral energy distributions and radio continuum spectra of northern extragalactic radio sources
Spectral energy distributions (SEDs) and radio continuum spectra are presented for a northern sample of 104 extragalactic radio sources, based on the Planck...