Ionized outflows from active galactic nuclei as the essential elements of feedback

被引：136

作者：

Laha, Sibasish ^{[1
,2
]}

Reynolds, Christopher S. ^{[3
]}

Reeves, James ^{[4
,5
]}

Kriss, Gerard ^{[6
]}

Guainazzi, Matteo ^{[7
]}

Smith, Randall ^{[8
]}

Veilleux, Sylvain ^{[9
,10
]}

Proga, Daniel ^{[11
]}

机构：

[1] NASA, Astroparticle Phys Lab, Goddard Spaceflight Ctr, Greenbelt, MD 20771 USA

[2] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21228 USA

[3] Univ Cambridge, Inst Astron, Cambridge, England

[4] Catholic Univ Amer, Dept Phys, Inst Astrophys & Computat Sci, Washington, DC 20064 USA

[5] Osserv Astron Brera, INAF, Merate, Lecco, Italy

[6] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

[7] ESTEC ESA, Keplerlaan 1, Noordwijk, Netherlands

[8] Harvard & Smithsonian, Ctr Astrophys, High Energy Astrophys, Cambridge, MA USA

[9] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[10] Univ Maryland, Joint Space Sci Inst, College Pk, MD 20742 USA

[11] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA

来源：

NATURE ASTRONOMY | 2021年 / 5卷 / 01期

关键词：

BROAD-ABSORPTION-LINE; ACCRETION DISK WINDS; SUPERMASSIVE BLACK-HOLE; UV LUMINOSITY FUNCTION; X-RAY ABSORBERS; WARM ABSORBERS; SEYFERT-GALAXIES; ULTRAFAST OUTFLOWS; RADIATION PRESSURE; MOLECULAR OUTFLOW;

D O I：

10.1038/s41550-020-01255-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This Review Article summarizes our current understanding of ionized outflows in active galactic nuclei, observed in absorption in the ultraviolet and X-ray wavelengths, including the most relevant observations as well as their origin and acceleration mechanisms. Outflows from active galactic nuclei (AGNs) are one of the fundamental mechanisms by which the central supermassive black hole interacts with its host galaxy. Detected in >= 50% of nearby AGNs, these outflows have been found to carry kinetic energy that is a large fraction of the AGN power, and thereby give 'negative' feedback to their host galaxies. To understand the physical processes that regulate them, it is important to have a robust estimate of their physical and dynamical parameters. In this Review Article, we summarize our current understanding of the physics of the ionized outflows detected via absorption in the ultraviolet and X-ray wavelength bands. We discuss the most relevant observations and our current knowledge and uncertainties in the measurements of the outflow parameters, as well as their origin and acceleration mechanisms. The commissioning and concept studies of large telescope missions with high-resolution spectrographs in ultraviolet/optical and X-rays along with rapid advancements in simulations offer great promise for discoveries in this field over the next decade.

引用

页码：13 / 24

页数：12

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