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Title: Relativistic jet properties of GeV-TeV blazars and possible implications for the jet formation, composition, and cavity kinematics

We fit the spectral energy distributions of a GeV-TeV flat spectrum radio quasar (FSRQ) sample with the leptonic model. Their γ{sub min} of the relativistic electron distributions, which significantly affect the estimate of the jet properties, are constrained, with a typical value of ∼48. Their jet power, magnetized parameter, radiation efficiency, and jet production and radiation rates per central black hole (BH) mass are derived and compared with those of BL Lacertae (BL Lac) objects. We show that the FSRQ jets may be dominated by the Poynting flux and have a high radiation efficiency, whereas the BL Lac object jets are likely dominated by particles and have a lower radiation efficiency than FSRQs. Being different from BL Lac objects, the jet powers of FSRQs are proportional to their central BH masses. The jet production and radiation rates of the FSRQs distribute in narrow ranges and are correlated with each other, whereas no similar feature is found for the BL Lac objects. We also show that the jet power is correlated with the cavity kinetic power: the magnetic field energy in the jets may provide the cavity kinetic energy of FSRQs, and the kinetic energy of cold protons in the jetsmore » may be crucial for the cavity kinetic energy of BL Lac objects. We suggest that the dominating formation mechanism of FSRQ jets may be the Blandford-Znajek process, but BL Lac object jets may be produced via the Blandford-Payne and/or Blandford-Znajek processes, depending on the structures and accretion rates of accretion disks.« less
Authors:
; ;  [1] ; ; ;  [2]
  1. National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China)
  2. Department of Physics and GXU-NAOC Center for Astrophysics and Space Sciences, Guangxi University, Nanning 530004 (China)
Publication Date:
OSTI Identifier:
22356623
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 788; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCRETION DISKS; BL LACERTAE OBJECTS; BLACK HOLES; COMPARATIVE EVALUATIONS; EFFICIENCY; ELECTRONS; ENERGY SPECTRA; GALAXIES; GEV RANGE; MAGNETIC FIELDS; MASS; PROTONS; QUASARS; RELATIVISTIC RANGE; STARS; TEV RANGE