NRAO/Socorro Colloquium Series
Bruce G. Elmegreen
IBM T.J. Watson
Formation of Star Clusters
Star clusters form in the densest part
of a hierarchy of structures in the interstellar medium. Unbound stars
continue the hierarchy to larger scales in OB associations and star complexes,
while the clusters themselves contain smaller sub-clusters when they are
very young, before the bound stars mix up. The conditions for cluster formation
are present in the gas even before the stars form, including the high mass
fraction of dense cores that is necessary for cluster boundedness when
the less-dense gas eventually leaves. The initial stellar mass function
and the cluster mass function seem to have similar origins, both coming
from cloud structure. This talk will review the processes of star
formation, cluster formation, and the IMF that are observed to operate
over a wide range of scales.
March 2, 2012
11:00 am
Array Operations Center Auditorium
All NRAO employees are invited to attend via
video, available in Charlottesville Room 230, Green Bank Room 137 and
Tucson N525.
Local Host: Stuartt Corder