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arXiv · 1208.0211

The Dynamics of an Expanding OB Association

Nicholas J. Wright·Herve Bouy·Jeremy J. Drake·Janet E. Drew·Mario Guarcello·David Barrado y Navacues
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Abstract

We present 3-dimensional kinematical observations of the massive OB association Cygnus OB2 to identify the mechanisms responsible for disrupting young star clusters. The picture revealed by these observations is of a highly-substructured, dynamically unmixed OB association that does not exhibit the position-velocity correlations predicted by the theories of infant mortality or tidal stripping. These observations would appear to support a picture of hierarchical star formation.

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Nicholas J. Wright, Herve Bouy, Jeremy J. Drake, Janet E. Drew, Mario Guarcello, David Barrado y Navacues. 2012-08-01. The Dynamics of an Expanding OB Association. https://arxiv.org/abs/1208.0211

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