Friday, August 3, 2012

1208.0211 (Nicholas J. Wright et al.)

The Dynamics of an Expanding OB Association    [PDF]

Nicholas J. Wright, Herve Bouy, Jeremy J. Drake, Janet E. Drew, Mario Guarcello, David Barrado y Navacues
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.
View original: http://arxiv.org/abs/1208.0211

No comments:

Post a Comment