K-fluorescence lines in spectra of X-ray binaries
K-fluorescence lines in spectra of X-ray binaries
复制标题
X 射线双星光谱中的 K 荧光线
DOI：
10.1086/156260
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发表时间：
1978
期刊：
影响因子：
--
通讯作者：
M. Basko
中科院分区：
文献类型：
--
作者：
M. Basko
计算了重元素K谱线在冷表面的X射线反射。严格处理辐射传递，用各向同性散射的H函数表示K线上的反照率。这种方法也被用来评估由单个散射的K光子形成的谱线的低能翼的光谱形状。详细讨论了X射线双星K发射的主要特征。狭窄的K..帽阿尔法的观测前景。分析了X射线双星中的谱线，并特别注意从这种观测中可以获得的新信息。在铁K..帽阿尔法的情况下，人们可以预期的最小等效宽度。LINE对一些著名的X射线双星进行了评估。
The reflection of the X-rays in K lines of heavy elements from a cold surface is calculated. The radiative transfer is treated rigorously, with the albedo in K lines expressed in terms of the H-function for isotropic scattering. This approach is also applied to evaluate the spectral shape of the low-energy wing of the line, formed by the singly scattered K photons. A detailed discussion is given of the main characteristics of K-emission from the X-ray binaries. The prospects of observations of the narrow K..cap alpha.. lines in X-ray binaries are analyzed, with special attention paid to the new information that can be obtained from such observations. The minimum equivalent width which one could expect in the case of the iron K..cap alpha.. line is evaluated for a number of well-known X-ray binaries.