We present wavelength measurements of K-shell resonance lines of O Ⅴ and O Ⅵ using the University of California Lawrence Livermore National Laboratory EBIT-Ⅰ electron beam ion trap. The wavelength accuracy of better than 140 parts per million is sufficient to determine gas outflow velocities of warm absorbers associated with active galactic nuclei to within 40 km s~(-1) and better. Our measurements confirm that the outflow velocities associated with NGC 5548 and derived from the O Ⅴ and O ? lines are similar to those derived from the O Ⅶ lines. These kinematic measurements make for further evidence that the X-ray and UV absorbers in these systems are truly two manifestations of the same physical outflow.
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机译:我们使用加州大学劳伦斯·利弗莫尔国家实验室EBIT-Ⅰ电子束离子阱对OⅤ和OⅥ的K壳共振线进行波长测量。优于百万分之140的波长精度足以确定与活动银河核相关的热吸收体的气体流出速度,在40 km s〜(-1)或更高。我们的测量结果证实了与NGC 5548相关并由OⅤ和O导出的流出速度。线类似于从OⅦ线得出的线。这些运动学测量结果提供了进一步的证据,证明这些系统中的X射线吸收剂和UV吸收剂确实是同一物理流出量的两个体现。
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