从光速圆柱磁能的衰减研究毫秒脉冲双星的演化

Research on the Evolution of Binary Pulsar Systems from the Decay of Magnetic Energy at the Light Cylinder

本文用脉冲星光速圆柱附近磁能的衰减理论研究了毫秒脉冲星的演化。文中从理论上给出了脉冲星到达辐射截止线时的年龄和自转周期,及现在的辐射年龄和从现在辐射年龄到达辐射截止线所需的时间。并用此理论对7颗脉冲双星的演化作了数值计算。

The evolutionary history of binary pulsars based on the decay of magnetic energy at the light cylinder is studies in this paper.The formulae for the two radiative ages t0and tdfrom the minimum period,Pmin,in the accerative phase to the present peroid,p(t0),and the radio radiation cut-off line are given.The time,tf,when the pulsars arrive at the radiation cut-off line from the present radiative age and the peroid,Pf,at which the pulsars will arrive at the radio radiation cut-off line in tf are also given.In addition,the numerically calculated results for seven binary pulsars are listed in Table 1.