Ionized outflows from active galactic nuclei as the essential elements of feedback
| Autor: | Sylvain Veilleux, S. Laha, J. N. Reeves, Randall K. Smith, Matteo Guainazzi, Gerard A. Kriss, Christopher S. Reynolds, Daniel Proga |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Active galactic nucleus
010504 meteorology & atmospheric sciences Field (physics) Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Kinetic energy 01 natural sciences law.invention Telescope law 0103 physical sciences 010303 astronomy & astrophysics Instrumentation and Methods for Astrophysics (astro-ph.IM) Astrophysics::Galaxy Astrophysics 0105 earth and related environmental sciences Physics High Energy Astrophysical Phenomena (astro-ph.HE) Supermassive black hole Astronomy and Astrophysics Astrophysics - Astrophysics of Galaxies Galaxy Wavelength Astrophysics of Galaxies (astro-ph.GA) Outflow Astrophysics - High Energy Astrophysical Phenomena Astrophysics - Instrumentation and Methods for Astrophysics |
| Zdroj: | Nature Astronomy |
| Popis: | Outflows from active galactic nuclei (AGN) are one of the fundamental mechanisms by which the central supermassive black hole interacts with its host galaxy. Detected in $\ge 50\%$ of nearby AGN, these outflows have been found to carry kinetic energy that is a significant fraction of 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 we summarize our current understanding on the physics of the ionized outflows detected in absorption in the UV and X-ray wavelength bands. We discuss the most relevant observations and our current knowledge and uncertainties in the measurements of the outflow parameters. We also discuss their origin and acceleration mechanisms. The commissioning and concept studies of large telescope missions with high resolution spectrographs in UV/optical and X-rays along with rapid advancements in simulations offer great promise for discoveries in this field over the next decade. An invited Review Article published in Nature Astronomy: https://www.nature.com/articles/s41550-020-01255-2 |
| Databáze: | OpenAIRE |
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