CAJ | 학술논문

研究了中子星双星系统吸积过程中的中子星自旋加速,得到其周期随着吸积质量的变化关系。并且通过对中子星磁场与周期演化分析,对比脉冲星的观测,获得了理论与观测类似的结果。在此基础上,研究了引力辐射作用对中子星自旋加速过程的影响,并且推导了吸积过程中中子星自旋周期变化率,探讨了吸积与引力辐射影响相当的临界角速度?cr,评估了中子星的自旋在引力辐射下的影响。
연구료중자성쌍성계통흡적과정중적중자성자선가속,득도기주기수착흡적질량적변화관계。병차통과대중자성자장여주기연화분석,대비맥충성적관측,획득료이론여관측유사적결과。재차기출상,연구료인력복사작용대중자성자선가속과정적영향,병차추도료흡적과정중중자성자선주기변화솔,탐토료흡적여인력복사영향상당적림계각속도?cr,평고료중자성적자선재인력복사하적영향。
In this paper we study the neutron star’s spin acceleration in binary systems, and the relation how the spin period changes with the accreted mass. We analyze the evolution of magnetic fields and the spin periods of neutron stars, and compare the modeled results with the observational data of pulsars, to show that they are consistent with each other. Considering the effect of gravitational radiation on the spin-up process of neutron stars, we derive the changing rate of the neutron star’s spin periods in the accretion process. We estimate the critical angular velocity?cr, at which the accretion torque is balanced by that of gravitational radiation, and discuss the influence of gravitational radiation on neutron star’s spin evolution.