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arXiv 0903.4347astro-ph.COastro-ph.HE
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1H 0419-577中硬过剩的朱雀观测:康普顿厚部分覆盖吸收体的探测

Suzaku Observation of a Hard Excess in 1H 0419-577: Detection of a Compton-Thick Partial-Covering Absorber

T. J. Turner, L. Miller, S. B. Kraemer, J. N. Reeves, K. A. Pounds

摘要:

我们目前的结果从2007年7月期间采取的1H 0419-577 200 KS朱雀观测。该源显示出一个强大的过剩的计数超过10千电子伏相比,外推模型的基础上以前的数据在0.5-10千电子伏波段。1H 0419-577中的“硬过剩”可以解释为存在一个康普顿厚度的部分覆盖吸收体,覆盖了约70%的源。康普顿厚度的气体可能来自光学BLR内部的半径,并可能形成一部分的cloudspeaker盘风。朱雀号观测到的Fe Ka荧光光度与赤道盘风的观测结果一致。

英文摘要:

We present results from a 200 ks Suzaku observation of 1H 0419-577 taken during 2007 July. The source shows a strong excess of counts above 10 keV compared to the extrapolation of models based on previous data in the 0.5-10 keV band. The 'hard excess' in 1H 0419-577 can be explained by the presence of a Compton-thick partial-covering absorber that covers ~ 70% of the source. The Compton-thick gas likely originates from a radius inside of the optical BLR and may form part of a clumpy disk wind. The fluorescent Fe Ka luminosity measured by Suzaku is consistent with that expected from an equatorial disk wind.

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