|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'504'928
Articles rated: 2609
25 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Unravelling the complex structure of AGN-driven outflows: II. Photoionization and energetics | | Marios Karouzos
; Jong-Hak Woo
; Hyun-Jin Bae
; | | Date: |
14 Sep 2016 | | Abstract: | Outflows have been shown to be prevalent in galaxies hosting luminous active
galactic nuclei (AGNs) and present a physically plausible way to couple the AGN
energy output with the interstellar medium of their hosts. Despite their
prevalence, accurate characterization of these outflows has been challenging.
In the second of a series of papers, we use Gemini Multi-Object Spectrograph
IFU data of 6 local (z<0.1) and moderate-luminosity Type 2 AGNs to study the
ionization properties and energetics of AGN-driven outflows. We find strong
evidence that connect the extreme kinematics of the ionized gas with the AGN
photoionization. The kinematic component related to the AGN-driven outflow is
clearly separated from other kinematic components, such as virial motions or
rotation, on the velocity and velocity dispersion diagram. Our spatially
resolved kinematic analysis reveals that from 30% up to 90% of the total mass
and kinetic energy of the outflow is contained within the central kpc of the
galaxy. The spatially integrated mass and kinetic energy of the gas entrained
in the outflow correlates well with the AGN bolometric luminosity and results
in energy conversion efficiencies between 0.01% and 1%. Intriguingly, we detect
ubiquitous signs of ongoing circumnuclear star formation. Their small size, the
centrally contained mass and energy, and the universally detected circumnuclear
star formation cast doubts on the potency of these AGN-driven outflows as
agents of galaxy-scale negative feedback. | | Source: | arXiv, 1609.4076 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER