论文标题
关于软伽玛中继器(SGR)中γ辐射机理的观察性检查
About the observational check of the mechanism of gamma radiation in Soft Gamma Repeaters (SGR)
论文作者
论文摘要
软伽马中继器(SGR)被确定为带有零星瞬态伽马辐射的星系内或附近星系中的单个中子星(NS)。发现的SGR的总数,包括相对异常的X射线脉冲星(AXP),几十个对象。其中许多显示与NS旋转相关的周期辐射,周期为2-12 s。缓慢的旋转伴随着旋转能的损失较小,这比观察到的零星伽马射线光度小得多,并且在4 SGR中观察到的巨型爆发过程中的光度较小。因此,能源通常与非常强的NS磁场的歼灭有关。另一个模型是基于释放在NS非平衡层中存储的核能。我们建议在这里进行观察测试可以区分这两个模型。
Soft gamma repeaters (SGR) are identified as single neutron stars (NS) inside the Galaxy, or nearby galaxies, with sporadic transient gamma radiation. A total number of discovered SGR, including relative Anomalous X-ray pulsars (AXP), is few tens of objects. Many of them show periodic radiation, connected with NS rotation, with periods 2-12 s. The slow rotation is accompanied by small rate of loss of rotational energy, which is considerably smaller than the observed sporadic gamma ray luminosity, and is many orders less that the luminosity during giant bursts, observed in 4 SGR. Therefore the energy source is usually connected with annihilation of very strong NS magnetic field. Another model is based on release of a nuclear energy stored in the NS nonequilibrium layer. We suggest here an observational test with could distinguish between these two models.