共 15 条
New insights on the accretion disk-winds connection in radio-loud AGNs from Suzaku
被引:0
|作者:
Tombesi, F.
[1
,2
]
Sambruna, R. M.
[3
]
Reeves, J. N.
Braito, V.
[4
,5
]
Cappi, M.
[6
]
Reynolds, C. S.
[7
]
Mushotzky, R. F.
[7
]
机构:
[1] NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD 20771 USA
[2] Univ Maryland, College Pk, MD 20742 USA
[3] George Mason Univ, Fairfax, VA 22030 USA
[4] Keele Univ, Keele ST5 5BG, Staffs, England
[5] Univ Leicester, Leicester LE1 7RH, Leics, England
[6] INAF IASF Bologna, I-40129 Bologna, Italy
[7] Univ Maryland, Dept Astron, College Pk, MD 20742 USA
来源:
SUZAKU 2011: EXPLORING THE X-RAY UNIVERSE: SUZAKU AND BEYOND
|
2012年
/
1427卷
关键词:
galaxies: active;
X-rays: galaxies;
accretion;
accretion disks;
plasmas;
ULTRA-FAST OUTFLOWS;
ABSORPTION-LINES;
JET;
EMISSION;
QUASAR;
D O I:
10.1063/1.3696173
中图分类号:
O59 [应用物理学];
学科分类号:
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 similar to 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 similar to 7 days 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 disc-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.
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