Triggering and delivery methods for AGN feedback

2016-08-24
No Thumbnail Available

View/Download File

Persistent link to this item

Statistics
View Statistics

Journal Title

Journal ISSN

Volume Title

Title

Triggering and delivery methods for AGN feedback

Published Date

2016-08-24

Publisher

Type

Presentation

Abstract

In this talk I present a comparison of several common sub-grid implementations of AGN feedback, focusing on the effects of different triggering mechanisms and the differences between thermal and kinetic feedback (although we also attempt to assess the importance of physical resolution and some AGN jet properties as well). Our main result is that pure thermal feedback that is centrally injected behaves differently from feedback with even a small kinetic component. We do not see large differences between implementations of different triggering mechanisms, as long as the spatial resolution is sufficiently high, probably because all of the implementations tested here trigger strong AGN feedback under similar conditions. Our simulations confirm that AGN can regulate the thermal state of cool-core galaxy clusters and maintain the core in a state that is marginally susceptible to thermal instability and precipitation.

Description

Related to

Replaces

License

Series/Report Number

Funding information

Isbn identifier

Doi identifier

Previously Published Citation

Suggested citation

O'Shea, Brian. (2016). Triggering and delivery methods for AGN feedback. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/182010.

Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.