论文标题
SS 433的伽马射线回声
Gamma-ray echoes from SS 433
论文作者
论文摘要
最近报道了两种伽玛射线对微QuaSar SS 433的检测。第一个来源可以与SS 433的Eastern Jet Lobe关联,而第二个来源是可变的,并且显示与二进制系统的进动期兼容的显着周期性约为160天。该变量组件的位置与SS 433喷气机的位置不兼容。为了解释观察到的现象学,已经提出了一种基于在积聚磁盘包膜界面加速的相对论质子对密集气云照明的情况。但是,充满活力的论点强烈限制了这种情况,因为它需要一种能够定期将大量SS 433的动能引导到距离中央二进制系统36 Parsec的发射极的机制。
The detection of two sources of gamma rays towards the microquasar SS 433 has been recently reported. The first source can be associated with SS 433's eastern jet lobe, whereas the second source is variable and displays significant periodicity compatible with the precession period of the binary system, of about 160 days. The location of this variable component is not compatible with the location of SS 433 jets. To explain the observed phenomenology, a scenario based on the illumination of dense gas clouds by relativistic protons accelerated at the interface of the accretion disk envelope has been proposed. Energetic arguments strongly constrain this scenario, however, as it requires an unknown mechanism capable to periodically channel a large fraction of SS 433's kinetic energy towards an emitter located 36 parsec away from the central binary system.