A MULTIZONE MODEL FOR SIMULATING THE HIGH-ENERGY VARIABILITY OF TeV BLAZARS
Loading...
Links to Files
Permanent Link
Author/Creator ORCID
Date
2008-08-12
Type of Work
Department
Program
Citation of Original Publication
Philip B. Graff, Markos Georganopoulos, Eric S. Perlman, Demosthenes Kazanas, A MULTIZONE MODEL FOR SIMULATING THE HIGH-ENERGY VARIABILITY OF TeV BLAZARS, The Astrophysical Journal, 689:68Y78, 2008 , http://iopscience.iop.org/article/10.1086/592427/pdf
Rights
This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
©2008. The American Astronomical Society. All rights reserved.
©2008. The American Astronomical Society. All rights reserved.
Abstract
We present a time-dependent multizone code for simulating the variability of synchrotron self-Compton (SSC) sources. The code adopts a multizone pipe geometry for the emission region, appropriate for simulating emission from a standing or propagating shock in a collimated jet. Variations in the injection of relativistic electrons in the inlet propagate along the length of the pipe, cooling radiatively. Our code for the first time takes into account the nonlocal, time-retarded nature of SSC losses that are thought to be dominant in TeV blazars. The observed synchrotron and SSC emission is followed self-consistently, taking into account light-travel time delays. At any given time, the emitting portion of the pipe depends on the frequency and the nature of the variation followed. Our simulation employs only one additional physical parameter relative to one-zone models, that of the pipe length, and is computationally very efficient, using simplified expressions for the SSC processes. The code will be useful for observers
modeling Fermi, TeV, and X-ray observations of SSC blazars.