A Numerical Code to Study the Variability of Blazar Emission (Poster)

  title={A Numerical Code to Study the Variability of Blazar Emission (Poster)},
  author={Andrea Tramacere and Gino Tosti Physics Department University of Perugia and Via A. Pascoli and Perugia and Italy. and Infn and Section of Perugia and Via A. Pascoli},
We present a numerical code, written in C, which can be used to simulate or to analyze the emission of Blazars over the entire electromagnetic spectrum. Our code can reproduce: Synchrotron emission, Inverse Compton emission (IC) (Thomson & Klein-Nishina regime), External Compton emission (EC), accretion disk variability using a Cellular Automata (CA) algorithm, temporal evolution of the emitting plasma energy distribution, flaring phenomena, light curves in the rest and in the observer frame… 

Figures from this paper

Spectral Modeling of the High-Energy Emission of the Magnetar 4U 0142+614
We present an empirical spectral modeling of the high-energy emission of the anomalous X-ray pulsar 4U 0142+614 based on simultaneous Swift and INTEGRAL observations from X- to γ-ray energies. We
Theγ-ray emitting region in low synchrotron peak blazars
Aims.From the early days inγ-ray astronomy, locating the origin of GeV emission within the core of an active galactic nucleus (AGN) persisted as an open question; the problem is to discern between
Log-parabolic spectra and particle acceleration in blazars. III. SSC emission in the TeV band from Mkn 501
Curved broad-band spectral distributions of non-thermal sources like blazars are described well by a log-parabolic law where the second degree term measures the curvature. Log-parabolic energy
We have conducted a detailed investigation of the broadband spectral properties of the gamma-ray selected blazars of the Fermi LAT Bright AGN Sample (LBAS). By combining our accurately estimated
PKS 1502+106: A New and Distant Gamma-ray Blazar in Outburst Discovered by the Fermi Large Area Telescope
The Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope discovered a rapid (about 5 days duration), high-energy (E >100 MeV) gamma-ray outburst from a source identified with the
FERMI Large Area Telescope and multi-wavelength observations of the flaring activity of PKS 1510-089 between 2008 september and 2009 june
We report on the multi-wavelength observations of PKS 1510-089 (a flat spectrum radio quasar (FSRQ) at z = 0.361) during its high activity period between 2008 September and 2009 June. During this 11


Rapid variability in the synchrotron self Compton model for blazars
ABSTRA C T Blazars are characterized by large amplitude and rapid variability, indicating that the electron distribution is changing rapidly, often on time-scales shorter than the light-crossing
Variability Pattern and the Spectral Evolution of the BL Lacertae Object PKS 2155–304
The TeV blazar PKS 2155(304 was monitored with the X-ray satellite ASCA in 1994 May as part of a multiwavelength campaign from the radio to X-ray bands. At the beginning of the two-day continuous
X-Ray Fluctuations from Advection-dominated Accretion Disks with a Critical Behavior
A new hydrodynamic model for aperiodic X-ray fluctuations from black hole objects is presented. X-ray fluctuation is thought to originate from instabilities of the accretion disk around a black hole.
Transformation Properties of External Radiation Fields, Energy-Loss Rates and Scattered Spectra, and a Model for Blazar Variability
We treat transformation properties of external radiation fields in the proper frame of a plasma moving with constant speed. The specific spectral energy densities of external isotropic and accretion
Central black hole masses in eight active galactic nuclei (AGNs) are evaluated by a method based on the X-ray flux variability of these AGNs and Cyg X-1 observed with Ginga. We introduce a new
A practical difference scheme for Fokker-Planck equations☆
A practical finite difference scheme for initial value problems of Fokker-Planck equations has been studied. In addition to satisfying the conditions of convergence and unconditional stability, this
Radiative processes in astrophysics
Chapter 1 Fundamentals of Radiative Transfer 1.1 The Electromagnetic Spectrum Elementary Properties of Radiation 1.2 Radiative Flux Macroscopic Description of the Propagation of Radiation Flux from
Electron Acceleration and Gamma-Ray Emission from Blazars