Results 11 to 20 of about 282 (177)
The transition between BL Lac objects and flat spectrum radio quasars [PDF]
Monthly Notices of the Royal Astronomical Society, 2011 F Tavecchio, L Foschini, G Ghirlanda
exaly +2 more sources
Flat-spectrum radio quasars from the SDSS DR3 quasar catalogue [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 22 pages, 13 figures, 2 tables, accepted to ...
Chen, Zhaoyu, Gu, Minfeng, Cao, Xinwu
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The Physical Properties of Fermi-4LAC Flat Spectrum Radio Quasars [PDF]
The Astrophysical Journal Supplement Series, 2020 Abstract In this work, we collect quasi-simultaneous infrared, optical, X-ray and γ-ray data of 60 Fermi fourth LAT AGN catalog (4LAC) flat spectrum radio quasars (FSRQs). In the framework of the conventional one-zone leptonic model, we investigate the physical properties of Fermi-4LAC FSRQs’ jets by modeling their quasi-simultaneous ...
Can Tan +5 more
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TIME DEPENDENT HADRONIC MODELING OF FLAT SPECTRUM RADIO QUASARS [PDF]
The Astrophysical Journal, 2015 Accepted for publication in The Astrophysical ...
Diltz, C., Böttcher, M., Fossati, G.
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The “Blazar Sequence” in the TeV Band
The Astrophysical Journal, 2023 The “blazar sequence” has been proposed for more than 20 yr, yet its nature is still unclear. In this work, for the first time we expand this topic to the TeV band by using a sample of 58 TeV blazars, including 48 blazars in the quiescent state and 21 ...
Zhihao Ouyang +9 more
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DISCERNING THE GAMMA-RAY-EMITTING REGION IN THE FLAT SPECTRUM RADIO QUASARS [PDF]
The Astrophysical Journal Supplement Series, 2016 ABSTRACT A model-dependent method is proposed to determine the location of the γ-ray-emitting region for a given flat spectrum radio quasar (FSRQ). In the model, the extra-relativistic electrons are injected at the base of the jet and non-thermal photons are produced by both synchrotron radiation and inverse-Compton (IC) scattering in ...
Y. G. Zheng +3 more
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Identification of the OGLE Blazars behind the Large and Small Magellanic Clouds
Galaxies, 2017 We report the selection of blazar candidates behind the Large and Small Magellanic Clouds. Both flat spectrum radio quasar and BL Lacreate objects were selected based on the long-term, multi-colour Optical Gravitational Lensing Experiment photometric ...
Natalia Żywucka +6 more
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Flat Spectrum Radio Quasars through the MAGIC glasses [PDF]
Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015), 2016 The detection of Flat Spectrum Radio Quasars (FSRQs) in the Very High Energy (VHE, E > 100 GeV) range is challenging, mainly because of their steep spectra in this energy band. Up to now, only five FSRQs are known to be VHE γ-ray emitters, all of them have been detected by the MAGIC telescopes, that discovered four of them in the VHE band.
Becerra González, J. +15 more
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On the evolution of Seyfert galaxies, BL Lacertae objects and flat-spectrum radio quasars [PDF]
Astrophysics and Space Science, 2022 11 Pages, 14 figures, 4 tables.
Iyida, Evaristus U. +2 more
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EeV astrophysical neutrinos from flat spectrum radio quasars [PDF]
Astronomy & Astrophysics, 2020 Context. Flat-spectrum radio quasars (FSRQs) are the most powerful blazars in the γ-ray band. Although they are supposed to be good candidates in producing high-energy neutrinos, no secure detection of FSRQs has been obtained to date, except for a possible case of PKS B1424-418. Aims.
C. Righi +3 more
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