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Gamma-gamma absorption in the broad line region radiation fields of gamma-ray blazars
(IOP Publishing, 2016)
The expected level of γγ absorption in the Broad Line Region (BLR) radiation field of γ-ray loud Flat Spectrum Radio Quasars (FSRQs) is evaluated as a function of the location of the γ-ray emission region. This is done ...
On the minimum jet power of TeV BL Lac Objects in the p–γ model
(IOP Publishing, 2019)
We study the requirement of the jet power in the conventional p–γ models (photopion production and Bethe–
Heitler pair production) for TeV BL Lac objects. We select a sample of TeV BL Lac objects whose spectral ...
Probing the emission mechanism and magnetic field of neutrino blazars with multiwavelength polarization signatures
(IOP Publishing, 2019)
The characteristic two-component blazar spectral energy distribution (SED) can be of either leptonic and/or hadronic origins. The potential association of the high-energy neutrino event IceCube-170922A with the flaring ...
Cascading constraints from neutrino-emitting blazars: the case of TXS 0506+056
(IOP Publishing, 2019)
We present a procedure to generally constrain the environments of neutrino-producing sites in photomeson production models of jetted active galactic nuclei (AGNs) where any origin of the dominant target photon field can ...
EBL inhomogeneity and hard-spectrum gamma-ray sources
(IOP Publishing, 2017)
The unexpectedly hard very-high-energy (VHE; E > 100 GeV) γ-ray spectra of a few distant blazars have been interpreted as evidence of a reduction of the γγ opacity of the universe due to the interaction of VHE γ-rays with ...
Polarization signatures of relativistic magnetohydrodynamic shocks in the blazar emission region. I. Force-free helical magnetic fields
(IOP, 2016)
The optical radiation and polarization signatures in blazars are known to be highly variable during flaring activities. It is frequently argued that shocks are the main driver of the flaring events. However, the spectral ...
Particle diffusion and localized acceleration in inhomogeneous AGN jets. II. Stochastic variation
(Oxford Univ Press, 2016)
We study the stochastic variation of blazar emission under a 2D spatially resolved leptonic jet model we previously developed. Random events of particle acceleration and injection in small zones within the emission region ...
Relativistic shear flow between electron-ion and electron-positron plasmas and astrophysical applications
(IOP, 2017)
We present particle-in-cell simulation results of relativistic shear boundary layers between electron–ion and
electron–positron plasmas and discuss their potential applications to astrophysics. Specifically, we find that ...
3C 279 in outburst in 2015 june: a broadband sed study based on the integral detection
(IOP Publishing, 2016)
Blazars radiate from radio through gamma-ray frequencies and thereby make ideal targets for multifrequency studies. Such studies allow the properties of the emitting jet to be constrained. 3C 279 is among the most notable ...
Magnetic field amplification and flat spectrum radio quasars
(Oxford University Press, 2014)
We perform time-dependent, spatially resolved simulations of blazar emission to evaluate
several flaring scenarios related to magnetic-field amplification and enhanced particle acceleration.
The code explicitly accounts ...