Effelsberg HI Survey of Compact High-Velocity Clouds

  • Tobias Westmeier, Christian Brüns, Jürgen Kerp
  • Published 2003


We studied 11 compact high-velocity clouds (CHVCs) in the 21-cm line emission of neutral hydrogen with the 100-m telescope in Effelsberg. We find that most of our CHVCs are not spherically-symmetric as we would expect in case of a non-interacting, intergalactic population. Instead, many CHVCs reveal a complex morphology suggesting that they are disturbed by ram-pressure interaction with an ambient medium. Thus, CHVCs are presumably located in the neighborhood of the Milky Way instead of being spread across the entire Local Group.

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Cite this paper

@inproceedings{Westmeier2003EffelsbergHS, title={Effelsberg HI Survey of Compact High-Velocity Clouds}, author={Tobias Westmeier and Christian Br{\"{u}ns and J{\"{u}rgen Kerp}, year={2003} }