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HVCs, infall and the Galactic Fountain

Published online by Cambridge University Press:  05 March 2015

Bart P. Wakker
Bart P. Wakker*
Affiliation:
supported by NASA/NSF; affiliated with Department of AstronomyUniversity of Wisconsin-Madison475 N Charter St, Madison, WI 53705, USA email: wakker@astro.wisc.edu
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Abstract

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High-velocity clouds (HVCs) consist of gas that does not take part in normal Galactic rotation, having velocities deviating by up to 400 km s−1 from those expected from rotation. Over the past five decades, studies have shown they these clouds trace a number of different processes, including the Galactic Fountain, tidal streams, and infall. Here, I summarize some recent results concerning measurements of cloud metallicities and distances and how these are used to understand individual clouds and derive the conclusion above.

Keywords

ISM: generalISM: HVCsGalaxy: corona

Information

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Highlights H16: Highlights of Astronomy , August 2012 , pp. 598 - 599
Copyright
Copyright © International Astronomical Union 2015 

References

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