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arXiv 1111.0908astro-ph.HE
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朱雀射电强活动星系核中吸积盘-风联系的新认识

New insights on the accretion disk-winds connection in radio-loud AGNs from Suzaku

F. Tombesi, R. M. Sambruna, J. N. Reeves, V. Braito, M. Cappi, C. S. Reynolds, R. F. Mushotzky

摘要:

通过对5个射电大活动星系核的长时间朱雀观测的频谱分析,我们发现其中3个活动星系核(3C 111、3C 120和3C 390.3)存在速度约为0.1c的超快外流。它们与吸积盘风/外流相一致。我们还进行了后续的3C 111监测其流出约7天的时间尺度,并检测到一个可能的相对论性发射线的反相关变化相对于蓝移的铁钾功能,以下流量增加。这为活动星系核中的吸积盘与风的联系提供了第一个直接证据。这些外流的质量流出率可以与吸积率相媲美,它们的机械功率可以对应于显着比例的热光度,并与它们典型的喷流功率相媲美。因此,它们可能在活动星系核的反馈中起重要作用,并为我们进一步研究吸积盘与风/喷流形成之间的关系提供线索。

英文摘要:

From the spectral analysis of long Suzaku observations of five radio-loud AGNs we have been able to discover the presence of ultra-fast outflows with velocities ~0.1c in three of them, namely 3C 111, 3C 120 and 3C 390.3. They are consistent with being accretion disk winds/outflows. We also performed a follow-up on 3C 111 to monitor its outflow on ~7days time-scales and detected an anti-correlated variability of a possible relativistic emission line with respect to blue-shifted Fe K features, following a flux increase. This provides the first direct evidence for an accretion disk-wind connection in an AGN. The mass outflow rate of these outflows can be comparable to the accretion rate and their mechanical power can correspond to a significant fraction of the bolometric luminosity and is comparable to their typical jet power. Therefore, they can possibly play a significant role in the expected feedback from AGNs and can give us further clues on the relation between the accretion disk and the formation of winds/jets.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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