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Nature of intranight optical variability of BL Lacertae
(Oxford University Press, 2015)
We present the results of extensive multiband intranight optical monitoring of BL Lacertae during 2010–2012. BL Lacertae was very active in this period and showed intense variability in almost all wavelengths. We extensively ...
Time dependent hadronic modeling of flat spectrum radio quasars
(American Astronomical Society, 2015)
We introduce a new time-dependent lepto-hadronic model for blazar emission that takes into account the radiation
emitted by secondary particles, such as pions and muons, from photo hadronic interactions. Starting from ...
The violent hard X-ray variability of Mrk 421 observed by NuSTAR in 2013 April
(American Astronomical Society, 2015)
The well-studied blazar Markarian 421 (Mrk 421, z = 0.031) was the subject of an intensive multi-wavelength campaign when it flared in 2013 April. The recorded X-ray and very high-energy (E > 100 GeV) γ-ray fluxes are the ...
A self-consistent and time-dependent hybrid blazar emission model
(EDP Sciences, 2015)
Aims. A time-dependent emission model for blazar jets, taking acceleration due to Fermi-I and Fermi-II processes for electrons and
protons as well as all relevant radiative processes self-consistently into account, is ...
Particle diffusion and localized acceleration in inhomogeneous AGN jets. I. Steady-state spectra
(Oxford University Press, 2015)
We study the acceleration, transport, and emission of particles in relativistic jets. Localized stochastic particle acceleration, spatial diffusion, and synchrotron as well as synchrotron self-Compton (SSC) emission are ...
Hadronic models of blazars require a change of the accretion paradigm
(Oxford University Press, 2015)
We study hadronic models of broad-band emission of jets in radio-loud active galactic nuclei, and their implications for the accretion in those sources. We show that the models that account for broad-band spectra of blazars ...
Polarization swings reveal magnetic energy dissipation in blazars
(American Astronomical Society, 2015)
The polarization signatures of blazar emissions are known to be highly variable. In addition to small fluctuations of the polarization angle around a mean value, large (gsim180°) polarization angle swings are sometimes ...