一个模拟TeV blazar高能光变的多区模型
A multi-zone model for simulating the high energy variability of TeV blazars
摘要：
本文提出了一个模拟同步自康普顿（SSC）源的时间相关多区程序。该代码采用了多区管的几何形状的发射区，适合模拟发射从一个站立或传播的冲击在准直射流。相对论性电子在入口处的注入变化沿辐射冷却管道的长度传播。我们的代码第一次考虑到非本地的，时间延迟的性质的同步自康普顿（SSC）的损失，被认为是占主导地位的TeV耀变体。所观察到的同步辐射和SSC的排放遵循自洽考虑到光的传播时间延迟。在任何给定的时间，管的发射部分取决于频率和随后的变化的性质。我们的模拟只采用了一个额外的物理参数相对于一个区域的模型，即管道的长度和计算非常有效，使用简化的表达式的SSC过程。该代码将是有用的观测建模GLAST，TeV和SSC耀变体的X射线观测。
英文摘要：
We present a time-dependent multi-zone code for simulating the variability of Synchrotron-Self Compton (SSC) sources. The code adopts a multi-zone 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 non-local, time-retarded nature of synchrotron self-Compton (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 GLAST, TeV, and X-ray observations of SSC blazars.
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