AcDc - A new code for the NLTE spectral analysis of accretion discs: application to the helium CV AM CVn
AcDc - A new code for the NLTE spectral analysis of accretion discs: application to the helium CV AM CVn
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AcDc - 吸积盘 NLTE 光谱分析的新代码：应用于氦 CV AM CVn
DOI：
10.1051/0004-6361:20041522
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发表时间：
2004
影响因子：
6.5
通讯作者：
Bamberg
中科院分区：
文献类型：
--
作者：
T. Nagel;S. Dreizler;T. Rauch;K. W. I. F. Astrophysik;U. Tuebingen;Tuebingen;H Germany;U. Goettingen;Goettingen;Dr.Remeis;Bamberg
本文介绍了一个新开发的NLTE程序，用于详细计算激变瓦里和致密X射线双星的吸积盘谱。假设一个标准的α-圆盘的径向结构，圆盘被分成同心环。对于每个盘环的辐射传输方程和结构方程的解决方案，包括流体静力学和辐射平衡，原子能级的人口以及电荷和粒子守恒，是自洽的。金属线覆盖和辐射的中心对象被考虑在内。作为第一个应用程序，我们显示了不同的光盘参数的影响，光盘光谱的氦激变变量AM CVn。
We present a recently developed code for detailed NLTE calculations of accretion disc spectra of cataclysmic vari- ables and compact X-ray binaries. Assuming a radial structure of a standard α-disc, the disc is divided into concentric rings. For each disc ring the solution of the radiation transfer equation and the structure equations, comprising the hydrostatic and radiative equilibrium, the population of the atomic levels as well as charge and particle conservation, is done self-consistently. Metal-line blanketing and irradiation by the central object are taken into account. As a first application, we show the influence of different disc parameters on the disc spectrum for the helium cataclysmic variable AM CVn.