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首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >The Suzaku observation of NGC 3516: Complex absorption and the broad and narrow FeK lines
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The Suzaku observation of NGC 3516: Complex absorption and the broad and narrow FeK lines

机译：朱雀观察NGC 3516：复合吸收和宽窄的FeK谱线

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摘要

We present results from a 150 ks Suzaku observation of the Seyfert 1.5 NGC 3516 in 2005 October. The source was in a relatively highly absorbed state. Our best-fit model is consistent with the presence of a low-ionization absorber having a column density near 5 X 1022 cm(-2) and covering most of the X-ray continuum source (covering fraction 96-100%). A high-ionization absorbing component, which yields a narrow absorption feature consistent with Fe xxvi K, is confirmed. A relativistically broadened Fe K alpha line was required in all fits, even after the complex absorption was taken into account; an additional partial-covering component is an inadequate substitute for the continuum curvature associated with the broad Fe line. A narrow Fe Ka emission line has a velocity width consistent with the Broad Line Region. The low-ionization absorber may be responsible for producing the narrow Fe Ka line, though a contribution from additional material out of the line of sight is possible. We include in our model soft band emission lines from He- and H-like ions of N, O, Ne, and Mg, consistent with photo-ionization, though a small contribution from collisionally-ionized emission is possible.
机译：我们目前提供的结果来自2005年10月对Seyfert 1.5 NGC 3516进行的150 ks Suzaku观测。源处于相对较高的吸收状态。我们的最佳拟合模型与低电离吸收剂的存在一致，该吸收剂的柱密度接近5 X 1022 cm（-2），并且覆盖了大多数X射线连续谱源（覆盖率96-100％）。证实了高电离吸收组分，其产生与Fe xxvi K一致的窄吸收特征。即使考虑了复杂的吸收，在所有情况下都需要相对论宽的Fe Kα谱线。额外的部分覆盖成分不足以替代与宽铁线相关的连续曲率。一条窄的Fe Ka发射线的速度宽度与宽线区域一致。低电离吸收剂可能是产生狭窄的Fe Ka线的原因，尽管视线之外的其他材料也可能产生贡献。我们在模型中包括了N，O，Ne和Mg的类似He和H的离子的软带发射线，这与光电离一致，尽管碰撞电离的发射可能会产生很小的影响。

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