Results 11 to 20 of about 24,339 (257)
Astroparticle Physics, 1998 The recent Cherenkov telescope observations and detections of the BL Lac objects Mkn 421, Mkn 501, 1ES 2344+514, PKS 2155--304 and possibly 1ES 1959+658 have shown that there exists a subclass of BL Lac objects emitting a substantial fraction of their ...
Ghisellini, Gabriele
core +3 more sources
Basic properties of Fermi blazars and the ‘blazar sequence’ [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 By statistically analyzing a large sample which includes blazars of Fermi detection (FBs) and non-Fermi detection (NFBs), we find that there are significant differences between FBs and NFBs for redshift, black hole mass, jet kinetic power from "cavity" power, broad-line luminosity, and ratio of core luminosity to absolute V-band magnitude ($R_{\rm v}$),
Xiong, Dingrong +3 more
openaire +2 more sources
The recognition of blazars and the blazar spectral sequence [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 Accepted for publication in ...
Antón, S., Browne, I. W A
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SYNCHROTRON POLARIZATION IN BLAZARS [PDF]
The Astrophysical Journal, 2014 We present a detailed analysis of time- and energy-dependent synchrotron polarization signatures in a shock-in-jet model for gamma-ray blazars. Our calculations employ a full 3D radiation transfer code, assuming a helical magnetic field throughout the jet.
Haocheng Zhang +2 more
openaire +4 more sources
FLARING PATTERNS IN BLAZARS [PDF]
The Astrophysical Journal, 2011 6 pages, 3 figures, accepted for publication in The Astrophysical ...
Paggi, A. +4 more
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Unifying MeV-blazars with GeV-blazars [PDF]
, 2002 We demonstrate that the spectral differences between Flat Spectrum Radio Quasars (FSRQ) with steep gamma-ray spectra (MeV-blazars) and FSRQ with flat gamma-ray spectra (GeV-blazars) can be explained by assuming that in the MeV-blazars, the production of gamma-rays is dominated by Comptonization of infrared radiation of hot dust, whereas in the GeV ...
Blazejowski, M. +3 more
openaire +3 more sources
Radio core-dominance of Fermi-blazars: implication for blazar unification [PDF]
Astrophysics and Space Science, 2021 ...The distribution of radio core-dominance is consistent with average projection angles of 13.5, 14.8, 16.8, 20.4, and 28.2 for ISPs, LSPs, FSRQs, HSPs, and radio galaxies, respectively. Linear regression analyses of our data yield significant anti-correlation r greater than 0.60 between core-dominance parameter and extended luminosity in each ...
E. U. Iyida, F. C. Odo, A. E. Chukwude
openaire +2 more sources
Searches for IceCube neutrinos from blazar flares using correlations with gamma-ray lightcurves [PDF]
EPJ Web of Conferences, 2019 Blazars have long been considered as accelerator candidates for cosmic rays. In such a scenario, hadronic interactions in the jet would produce neutrinos and gamma rays.
Raab Christoph +1 more
doaj +1 more source
Angular power spectrum of gamma-ray sources for GLAST: blazars and clusters of galaxies [PDF]
, 2006 Blazars, a beamed population of active galactic nuclei, radiate high-energy gamma-rays, and thus are a good target for the Gamma Ray Large Area Space Telescope (GLAST).
Ando, Shin'ichiro +3 more
core +2 more sources
AIP Conference Proceedings, 2001 Invited talk at "International Symposium on High Energy Gamma-Ray Astronomy", Heidelberg, Eds. F. Aharonian and H.
Sikora, M., Madejski, G.
openaire +3 more sources