Astronomy Letters ( IF 0.9 ) Pub Date : 2024-03-22 , DOI: 10.1134/s1063773723120071 M. A. Timirkeeva , I. F. Malov
Abstract
We have performed a comparative analysis of the angles \(\beta\) between the rotation axis and the magnetic moment in three groups of radio pulsars: sources in which only radio emission is observed, pulsars with detected X-ray emission, and radio-loud gamma-ray pulsars. For this purpose, we have calculated the values of the angle \(\beta\) separately for objects from each group by two different methods. It has turned out that in pulsars with hard emission the mean values of this angle (28.2\({}^{\circ}\) and 28.8\({}^{\circ}\)) are higher than those for quiet radio pulsars (12.9\({}^{\circ}\)). However, using the Kolmogorov–Smirnov test, we have shown that the revealed difference is insignificant with a high probability. Consequently, the structures of the magnetospheres in the three groups of pulsars considered do not differ significantly, while their difference is attributable to the values of the magnetic field on the light cylinder that switches on the hard non-thermal emission mechanism in pulsars with detected X-ray and/or gamma-ray emission but is not enough for this in radio pulsars without hard emission.
中文翻译:
硬发射射电脉冲星中磁矩与旋转轴之间的角度
摘要
我们对三组射电脉冲星的旋转轴和磁矩之间的角度\(\beta\)进行了比较分析:仅观察到射电发射的源、检测到X射线发射的脉冲星和射电脉冲星。响亮的伽马射线脉冲星。为此,我们通过两种不同的方法分别计算了每组物体的角度\(\beta\)值。事实证明,在硬发射脉冲星中,该角度的平均值(28.2 \({}^{\circ}\)和 28.8 \({}^{\circ}\) )高于安静射电的平均值脉冲星 (12.9 \({}^{\circ}\) )。然而,使用柯尔莫哥洛夫-斯米尔诺夫检验,我们表明所揭示的差异很可能是微不足道的。因此,所考虑的三组脉冲星中的磁层结构没有显着差异,而它们的差异可归因于光圆柱上的磁场值,该磁场值在检测到X的脉冲星中开启了硬非热发射机制射线和/或伽马射线发射,但在没有硬发射的射电脉冲星中这还不够。