UPDATED ATOMIC DATA AND CALCULATIONS FOR X-RAY SPECTROSCOPY
UPDATED ATOMIC DATA AND CALCULATIONS FOR X-RAY SPECTROSCOPY
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DOI：
10.1088/0004-637x/756/2/128
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发表时间：
2012-07
期刊：
影响因子：
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通讯作者：
A. Foster;L. Ji;Randall K. Smith;N. Brickhouse
中科院分区：
文献类型：
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作者：
A. Foster;L. Ji;Randall K. Smith;N. Brickhouse
我们将介绍AtomDB的最新版本2.0.2，这是一个原子数据数据库和一个专注于x射线天文学的等离子体建模代码。该版本包括对AtomDB中基本原子结构和过程数据的几个主要更新，包括新的电离平衡数据，状态选择重组数据，以及更新的许多离子的碰撞激发数据，包括铁l壳离子从Fe+16到Fe+23以及所有的氢和氦序列。我们还描述了这些变化对计算的发射和诊断线比的一些影响，例如由类氦g比所隐含的温度变化高达两倍。
We describe the latest release of AtomDB, version 2.0.2, a database of atomic data and a plasma modeling code with a focus on X-ray astronomy. This release includes several major updates to the fundamental atomic structure and process data held within AtomDB, incorporating new ionization balance data, state-selective recombination data, and updated collisional excitation data for many ions, including the iron L-shell ions from Fe+16 to Fe+23 and all of the hydrogen- and helium-like sequences. We also describe some of the effects that these changes have on calculated emission and diagnostic line ratios, such as changes in the temperature implied by the He-like G-ratios of up to a factor of two.