摘要
脉冲星表面的电磁辐射不仅受到引力的影响会发生红移,而且会受到磁气圈中等离子体介质的影响。在Gordon有效度规理论框架下讨论了等离子体介质对星体表面辐射的引力红移的修正。其中分析了等离子体的非均匀性对红移修正量的影响。结果表明,当电磁辐射向外传播时,红移修正量是位置的函数,正比于等离子体的平均数密度,因此需要考虑等离子体的分布情况和等离子体层的厚度。
The electromagnetic radiation on the surface of the pulsar is affected by gravity and the plasma medium in the magnetosphere. In this paper, the correction of the gravitational redshift by the plasma is discussed using the theory of Gordon effective metric. And the effect of the nonuniformity of plasma on the redshift correction is discussed. The results show that when the electromagnetic radiation is propagating outward, the redshift correction is the function of position, and proportional to the average density of the plasma, so it is necessary to consider the distribution of plasmas and the thickness of the plasma.
出处
《贵州师范学院学报》
2017年第12期5-8,共4页
Journal of Guizhou Education University
基金
贵州师范学院学生科研项目(2016DXS104)
国家自然科学基金地区科学基金项目(11665009)
贵州省科技计划项目(黔科合基础[2017]1132)
