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Multi-wavelength observations of the flaring gamma-ray blazar 3C 66A in 2008 october
(The Astrophysical Journal, 2011)
The γ -ray sky seen at X-ray energies: II. The swift hunt of fermi BL lac objects among unidentified γ -ray sources
(EDP Sciences, 2020-06)
Context. Nearly 50% of all sources detected by the Fermi Large Area Telescope are classified as blazars or blazar candidates, one of the most elusive classes of active galaxies. Additional blazars can also be hidden within ...
Optical archival spectra of blazar candidates of uncertain type in the 3rd fermi large area telescope catalog
(Springer Netherlands, 2016-09)
Despite the fact that blazars constitute the rarest class among active galactic nuclei (AGNs) they are the largest known population of associated γ
-ray sources. Many of the γ
-ray objects listed in the Fermi-Large Area ...
The γ -ray sky seen at X-ray energies: II. The Swift hunt of Fermi BL Lac objects among unidentified γ -ray sources
(EDP Sciences, 2020-06)
Context. Nearly 50% of all sources detected by the Fermi Large Area Telescope are classified as blazars or blazar candidates, one of the most elusive classes of active galaxies. Additional blazars can also be hidden within ...
Very-High-Energy γ-Ray Observations of the Blazar 1ES 2344+514 with VERITAS
(Wiley Blackwell Publishing, Inc, 2017-10)
We present very-high-energy γ-ray observations of the BL Lac object 1ES 2344+514 taken by the Very Energetic Radiation Imaging Telescope Array System (VERITAS) between 2007 and 2015. 1ES 2344+514 is detected with a statistical ...
Particle acceleration and magnetic field structure in PKS 2155-304: optical polarimetric observations
(WILEY-BLACKWELL, 2010)
In this paper, we present multiband optical polarimetric observations of the very-high energy blazar PKS 2155-304 made simultaneously with a HESS/Fermi high-energy campaign in 2008, when the source was found to be in a low ...
A two-component model for the high-energy variability of blazars: application to PKS 2155-304
(EDP Sciences, 2012-09)
Aims. We study the production of VHE emission in blazars as a superposition of a steady component from a baryonic jet and a time-dependent contribution from an inner e− e+ beam launched by the black hole. Methods. Both ...
Measurement of the extragalactic background light imprint on the spectra of the brightest blazars observed with H.E.S.S.
(EDP Sciences, 2013-02)
The extragalactic background light (EBL) is the diffuse radiation with the second highest energy density in the Universe after the cosmic microwave background. The aim of this study is the measurement of the imprint of the ...