Shattering cold gas into tiny cloudlets

2016-08-24
Loading...
Thumbnail Image

View/Download File

Persistent link to this item

Statistics
View Statistics

Journal Title

Journal ISSN

Volume Title

Title

Shattering cold gas into tiny cloudlets

Published Date

2016-08-24

Publisher

Type

Presentation

Abstract

Absorption studies of galaxies and galaxy clusters at high-redshift have unexpectedly found that their halos are also full of cold gas, in addition to the theoretically-predicted virialized plasma. These observations typically indicate a relatively modest total fraction of cold gas (~10^{-4}% by volume), yet find it in essentially every sightline through the galaxy. I will show that cold gas clouds are prone to “shattering” into tiny fragments, and that the resulting small clouds naturally reproduce the large area-covering fractions and small volume-filling fractions inferred from observations. This same effect enhances the drag force coupling the dynamics of cold and hot gasses; I will also discuss potential applications to entrainment of cold gas in galaxy winds, and the possibility of using cold gas to constrain the kinematics of the hot ICM.

Description

Related to

Replaces

License

Series/Report Number

Funding information

Isbn identifier

Doi identifier

Previously Published Citation

Suggested citation

McCourt, Mike. (2016). Shattering cold gas into tiny cloudlets. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/182030.

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.