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          Institute: MPI für Kernphysik     Collection: Theoretical Astrophysics     Display Documents



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ID: 43755.0, MPI für Kernphysik / Theoretical Astrophysics
Modelling the IR de-absorbed gamma-ray spectra of TeV BL Lacs
Authors:Mastichiadis, A.; Konopelko, A.; Kirk, J. G.; deJager, O. C.; Stecker, F. W.
Language:English
Date of Publication (YYYY-MM-DD):2003
Title of Proceedings:The 28th International Cosmic Ray Conference, Tsukuba, Japan
Start Page:2611
End Page:2614
Name of Conference/Meeting:The 28th International Cosmic Ray Conference
Place of Conference/Meeting:Tsukuba, Japan
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
2003-07-31
End Date of Conference/Meeting 
 (YYYY-MM-DD):
2003-08-07
Review Status:not specified
Audience:Experts Only
Abstract / Description:A sample of the BL Lac objects detected so far in TeV γ-rays consists of four well established sources, in particular Mkn 501, Mkn 421, 1ES 1426+428, and 1ES 1959+650. The energy spectra of these objects at TeV energies show the steepening in the spectral slope, which can be attributed to the γ-ray absorption onto extra-galactic infra-red (IR) background light. Based on the empirically based model of the IR spectral energy distribution (SED) we have unfolded the
intrinsic spectra of two BL Lac objects: Mkn 501 and Mkn 421 and modeled the TeV γ-ray emission in the synchrotron-self Compton (SSC) scenario.
External Publication Status:published
Document Type:Conference-Paper
Affiliations:MPI für Kernphysik/Group H. J. Völk/Theoretical Astrophysics (F. Aharonian, J. Kirk)
External Affiliations:(2) Department of Physics, University of Athens, Panepistimiopolis, GR 15783,
Zografos, Greece, Unit for Space Physics, Potchefstroom University, 2520, South Africa
Laboratory of High Energy Astrophysics, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
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