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Radiation and polarization signatures of the 3D multizone time-dependent hadronic blazar model
(IOP Publishing, 2016)
We present a newly developed time-dependent three-dimensional multizone hadronic blazar emission model. By coupling a Fokker–Planck-based lepto-hadronic particle evolution code, 3DHad, with a polarization-dependent radiation ...
Synchrotron polarization in blazars
(IOP Publishing, 2014)
We present a detailed analysis of time- and energy-dependent synchrotron polarization signatures in a shock-in-jet model for γ-ray blazars. Our calculations employ a full three-dimensional radiation transfer code, assuming ...
Probing acceleration and turbulence at relativistic shocks in blazar jets
(Oxford Univ Press, 2017)
Diffusive shock acceleration (DSA) at relativistic shocks is widely thought to be an important acceleration mechanism in various astrophysical jet sources, including radio-loud active galactic nuclei such as blazars. Such ...
On the underlying particles in the jet of 3C 279
(PoS, 2017)
Recent high-energy missions have allowed keeping watch over blazars in flaring states, which
provide deep insights into the engine powered by supermassive black holes. However, having
a blazar caught in a very bright ...
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 ...
Constraining relativistic bow shock properties in rotation-powered millisecond pulsar binaries
(AAS, 2017)
Multiwavelength follow-up of unidentified Fermi sources has vastly expanded the number of known galactic-field "black widow" and "redback" millisecond pulsar binaries. Focusing on their rotation-powered state, we interpret ...
The dependence of optical polarisation of blazars on the synchrotron peak frequency
(PoS, 2017)
The RoboPol instrument and the relevant program was developed in order to conduct a systematic
study of the optical polarisation variability of blazars. Driven by the discovery that long smooth
rotations of the optical ...
Challenges in reconciling observations and theory of the brightest high-energy flare ever of 3C 279
(PoS, 2017)
Recent high-energy missions have allowed keeping watch over blazars in flaring states, which
provide deep insights into the engine powered by supermassive black holes. However, having
a quasar caught in a very bright ...
A hard gamma-ray flare from 3C 279 in 2013 December
(IOP, 2016)
The blazar 3C 279 exhibited twin γ-ray flares of similar intensity in 2013 December and 2014 April. In this work, we present a detailed multi-wavelength analysis of the 2013 December flaring event. Multi-frequency observations ...
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 ...