论文标题

MRK双重AGN中的康普顿厚核266

A Compton-thick nucleus in the dual AGN of Mrk 266

论文作者

Iwasawa, K., Ricci, C., Privon, G. C., Torres-Albà, N., Inami, H., Charmandaris, V., Evans, A. S., Mazzarella, J. M., Díaz-Santos, T.

论文摘要

我们介绍了我们对发光红外星系MRK 266的Nustar数据分析的结果,该数据包含两个核,SW和NE,在先前的Chandra成像中解决。结合Chandra数据,我们在Chandra频段中非常微弱的Compton-Thick-thick-Agn急剧上升的通量导致了从Nustar观察结果获得的硬X射线频谱,这证实了先前的Mazzarella et al ef。 (2012年)。这种硬X射线成分以反射为主,其内在的2-10 KEV光度可能为〜1E43 ERG/s。尽管在软X射线中亮,但只有适度吸收的NE核的2-10 KEV光度为4E41 ERG/s,将其放在低亮度AGN类中。这些结果对理解严重遮盖的合并中双重AGN发射的可检测性和占空比。

We present results of our analysis of NuSTAR data of the luminous infrared galaxy Mrk 266, which contains two nuclei, SW and NE, resolved in previous Chandra imaging. Combining with the Chandra data, we intepret the hard X-ray spectrum obtained from a NuSTAR observation as resulting from steeply rising flux from a Compton-thick AGN in the SW nucleus which is very faint in the Chandra band, confirming the previous claim of Mazzarella et al. (2012). This hard X-ray component is dominated by reflection, and its intrinsic 2-10 keV luminosity is likely to be ~1e43 erg/s. Although it is bright in soft X-ray, only moderately absorbed NE nucleus has a 2-10 keV luminosity of 4e41 erg/s, placing it in the low-luminosity AGN class. These results have implications for understanding the detectability and duty cycles of emission from dual AGN in heavily obscured mergers.

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