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Modelling the Steady State Spectral Energy Distribution of the Bl-lac Object Pks 2155-30.4 Using a Selfconsistent Ssc Model : Volume 6, Issue 1 (13/01/2010)

By Weidinger, M.

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Book Id: WPLBN0003992430
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Reproduction Date: 2015

Title: Modelling the Steady State Spectral Energy Distribution of the Bl-lac Object Pks 2155-30.4 Using a Selfconsistent Ssc Model : Volume 6, Issue 1 (13/01/2010)  
Author: Weidinger, M.
Volume: Vol. 6, Issue 1
Language: English
Subject: Science, Astrophysics, Space
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Rüger, M., Spanier, F., & Weidinger, M. (2010). Modelling the Steady State Spectral Energy Distribution of the Bl-lac Object Pks 2155-30.4 Using a Selfconsistent Ssc Model : Volume 6, Issue 1 (13/01/2010). Retrieved from

Description: Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany. In this paper we present a fully selfconsistent SSC model with particle acceleration due to shock and stochastic acceleration (Fermi-I and Fermi-II-Processes respectively) to model the quiescent spectral energy distribution (SED) observed from PKS 2155. The simultaneous August/September 2008 multiwavelength data of H.E.S.S., Fermi, RXTE/SWIFT and ATOM give new constraints to the high-energy peak in the SED concerning its curvature. We find that, in our model, a monoenergetic injection of electrons at Γ0=910 into the model region, which are accelerated by Fermi-I- and Fermi-II-processes while suffering synchrotron and inverse Compton losses, finally leads to the observed SED of PKS 2155-30.4 shown in H.E.S.S. and Fermi-LAT collaborations (2009). In contrast to other SSC models our parameters arise from the jet's microphysics and the spectrum is evolving selfconsistently from diffusion and acceleration. The Γ0-factor can be interpreted as two counterstreaming plasmas due to the motion of the blob at a bulk factor of Γ=58 and opposed moving upstream electrons at moderate Lorentz factors with an average of Γu≈8.

Modelling the steady state spectral energy distribution of the BL-Lac Object PKS 2155-30.4 using a selfconsistent SSC model

Kardashev, N. S.: Nonstationariness of spectra of young sources of nonthermal radio emission, Soviet Astronomy - AJ, 39, 393–409, 1962.; Aharonian et al.: Multi-wavelength observations of PKS 2155-304 with HESS, 442, 895–907, doi:10.1051/0004-6361:20053353, 2005.; Bednarz, J. and Ostrowski, M.: The acceleration time-scale for first-order Fermi acceleration in relativistic shock waves, 283, 447–456, 1996.; Blumenthal, G. R. and Gould, R. J.: Bremsstrahlung, Synchrotron Radiation, and Compton Scattering of High-Energy Electrons Traversing Dilute Gases, Reviews of Modern Physics, 42, 237–271, doi:10.1103/RevModPhys.42.237, 1970.; B{öttcher}, M. and Chiang, J.: X-Ray Spectral Variability Signatures of Flares in BL Lacertae Objects, Astrophys. J., 581, 127–142, doi:10.1086/344155, 2002.; Chiang, J. and B{ö}ttcher, M.: Synchrotron and Synchrotron Self-Compton Spectral Signatures and Blazar Emission Models, Astrophys. J., 564, 92–96, doi:10.1086/324294, 2002.; Ellison, D. C., Reynolds, S. P., and Jones, F. C.: First-order Fermi particle acceleration by relativistic shocks, Astrophys. J., 360, 702–714, doi:10.1086/169156, 1990.%\vadjust; Felten, J. E. and Morrison, P.: Omnidirectional Inverse Compton and Synchrotron Radiation from Cosmic Distributions of Fast Electrons and Thermal Photons, Astrophys. J., 146, 686–708, 1966.; Ginzburg, V. L. and Syrovatskii, S. I.: Developments in the Theory of Synchrotron Radiation and its Reabsorption, Ann. Rev. Astron. Astrophys., 7, 375–+, doi:10.1146/annurev.aa.07.090169.002111, 1969.; H. E. S. S. and Fermi-LAT collaborations}: {Simultaneous observations of PKS 2155-304 with H.E.S.S., Fermi, RXTE and ATOM: spectral energy distributions and variability in a low state, ArXiv e-prints, 2009.; Jauch, J. M. and Rohrlich, F.: The theory of photons and electrons. The relativistic quantum field theory of charged particles with spin one-half, Texts and Monographs in Physics, New York: Springer, 1976, 2nd ed., 1976.; Jones, F. C.: Calculated Spectrum of Inverse-Compton-Scattered Photons, Physical Review, 167, 1159–1169, doi:10.1103/PhysRev.167.1159, 1968.; Kataoka, J., Takahashi, T., Makino, F., Inoue, S., Madejski, G. M., Tashiro, M., Urry, C. M., and Kubo, H.: Variability Pattern and the Spectral Evolution of the BL Lacertae Object PKS 2155-304, Astrophys. J., 528, 243–253, doi:10.1086/308154, 2000.; Katarzy{ński}, K., Ghisellini, G., Mastichiadis, A., Tavecchio, F., and Maraschi, L.: Stochastic particle acceleration and synchrotron self-Compton radiation in TeV blazars, 453, 47–56, doi:10.1051/0004-6361:20054176, 2006.; Kirk, J. G., Rieger, F. M., and Mastichiadis, A.: Particle acceleration and synchrotron emission in blazar jets, 333, 452–458, 1998.; Mannheim, K.: The proton blazar, 269, 67–76, 1993.; Pohl, M.: Einfuehrung in die Hochenergieastrophysik, Shaker Verlag, Aachen, 2002.; Press, W. H.: Numerical recipes in C++ : the art of scientific computing, Numerical recipes in C++ : the art of scientific computing by William H. Press. xxviii, 1,002 p. : ill. ; 26 cm.  Includes bibliographical references and index. ISBN : 0521750334, 2002.; Primack, J. R., Bullock, J. S., and Somerville, R.&nbs


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