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High-velocity Clouds

Published online by Cambridge University Press:  03 August 2017

B.P. Wakker
B.P. Wakker*
Affiliation:
University of Illinois, Department of Astronomy, Urbana USA

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This contribution describes high-velocity clouds (HVCs), neutral hydrogen moving with velocities inexplicable by differential galactic rotation. They have been invoked as evidence for infall of gas to the Galaxy, as manifestations of a galactic fountain, as energy source for the formation of supershells, etc. It is becoming clear that a single model will not suffice to explain all HVCs. A better understanding is mainly hampered by the fact that the distance remains unknown. Many aspects to the study of HVCs will be discussed here.

Type
I. The Disk-Halo Interface in Our Galaxy
Information
Symposium - International Astronomical Union , Volume 144: The Interstellar Disk-Halo Connection in Galaxies , 1991 , pp. 27 - 40
Copyright
Copyright © Kluwer 1991 

References

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