Abstract

Assuming that the first adiabatic invariant for radiating particles in relativistic jets is conserved, we investigate the change in brightness temperature along the jet axis. We show that in this case the observed break in the dependence of the brightness temperature on the distance to the ‘‘central engine’’ can be explained.

中文翻译：

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第一绝热不变量和相对论性喷流的亮度温度

摘要

假设相对论射流中辐射粒子的第一个绝热不变量守恒，我们研究沿射流轴的亮温变化。我们表明，在这种情况下，观察到的亮度温度与到“中央引擎”距离的依赖性的中断是可以解释的。