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Astrophys. Space Sci. Trans., 6, 1-7, 2010
www.astrophys-space-sci-trans.net/6/1/2010/ doi:10.5194/astra-6-1-2010 © Author(s) 2010. This work is distributed under the Creative Commons Attribution 3.0 License. |
13 Jan 2010
Modelling the steady state spectral energy distribution of the BL-Lac Object PKS 2155-30.4 using a selfconsistent SSC model
M. Weidinger, M. Rüger, and F. Spanier
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Cited articles
- 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.
- Kardashev, N. S.: Nonstationariness of spectra of young sources of nonthermal radio emission, Soviet Astronomy - AJ, 39, 393–409, 1962.
- 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. S.: Observational Gamma-ray Cosmology, in: High Energy Gamma-Ray Astronomy, edited by F. A. Aharonian, H. J. V{ö}lk, and D. Horns, vol. 745 of \em American Institute of Physics Conference Series\/, 23–33, doi:10.1063/1.1878394, 2005.
- Schlickeiser, R.: An explanation of abrupt cutoffs in the optical-infrared spectra of non-thermal sources. A new pile-up mechanism for relativistic electron spectra, 136, 227–236, 1984.
- Schlickeiser, R.: Cosmic ray astrophysics, Astronomy and Astrophysics Library; Physics and Astronomy Online Library. Berlin: Springer. ISBN 3-540-66465-3, 2002, XV + 519 pp., 2002.
- Sokolov, A., Marscher, A. P., and McHardy, I. M.: Synchrotron Self-Compton Model for Rapid Nonthermal Flares in Blazars with Frequency-dependent Time Lags, Astrophys. J., 613, 725–746, doi:10.1086/423165, 2004.
- More Articles (17)