二分量平流解在XSPEC中的实现
Implementation of Two Component Advective Flow Solution in XSPEC
摘要：
利用双分量平流（TCAF）的Chakrabarti-Titarchuk解可以很好地解释候选黑洞的光谱和时间性质。这个模型需要两个吸积率，即开普勒盘吸积率和晕吸积率，后者由亚开普勒，低角动量流，可能会或可能不会发展的冲击。在这个解决方案中，相关的参数是相对重要性的晕（创建康普顿云区）率相对于开普勒磁盘率（软光子源）。虽然这个模型已经被用来手动拟合数据的几个黑洞候选人相当令人满意，第一次，我们使它用户友好的GSFC/NASA的XSPEC软件实现。这使得任何用户都可以提取吸积流的物理参数，例如任何黑洞候选者的两个吸积率、激波位置、激波强度等。我们提供了一些使用此模型拟合一些情况的例子。最重要的是，与任何其他模型，我们表明，TCAF是能够预测的时间属性的频谱拟合，因为在TCAF，冲击是负责决定频谱斜率以及QPO频率。
英文摘要：
Spectral and Temporal properties of black hole candidates can be explained reasonably well using Chakrabarti-Titarchuk solution of two component advective flow (TCAF). This model requires two accretion rates, namely, the Keplerian disk accretion rate and the halo accretion rate, the latter being composed of a sub-Keplerian, low angular momentum flow which may or may not develop a shock. In this solution, the relevant parameter is the relative importance of the halo (which creates the Compton cloud region) rate with respect to the Keplerian disk rate (soft photon source). Though this model has been used earlier to manually fit data of several black hole candidates quite satisfactorily, for the first time, we made it user friendly by implementing it into XSPEC software of GSFC/NASA. This enables any user to extract physical parameters of the accretion flows, such as two accretion rates, the shock location, the shock strength etc. for any black hole candidate. We provide some examples of fitting a few cases using this model. Most importantly, unlike any other model, we show that TCAF is capable of predicting timing properties from the spectral fits, since in TCAF, a shock is responsible for deciding spectral slopes as well as QPO frequencies.
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