磁轫致辐射辅助函数的特性和数值计算  

Properties and Numerical Evaluation of the Magnetic Bremsstrahlung Function

作　　者：安树元[1] 

机构地区：[1]首都师范大学物理学系

出　　处：《内蒙古大学学报（自然科学版）》1997年第3期340-345,共6页Journal of Inner Mongolia University：Natural Science Edition

基　　金：内蒙古自然科学基金

摘　　要：磁轫致辐射函数在小宗量和大宗量区域中的展开特性．提出了一种渐近和多项式展开与数值积分相结合计算磁轫致辐射辅助函数的方法．以该算法编制的磁轫致辐射辅助函数子程序可以有效地应用于天体磁轫致辐射谱分布特性的数值计算．The expansion properties of the magnetic bremsstrahlung function for small arguments and large arguments are presented.A method for the numerical evaluation of the magnetic bremsstrahlung function is described,in which the asymptotic and polynomial expansions of the function and numerical integration techniques are used for specified argument subranges respectively.The presented algorithm can be easily included as a subroutine in any computer program for numerical evaluation of magnetic bremsstrahlung spectrum emitted from asters,which has proved to be efficient.

关 键 词：磁轫致辐射 辅助函数 数值计算 同步辐射 

分 类 号：P142.81[天文地球—天体物理]