CfA Colloquium Schedule Spring 2014
 27 March 2014

27 March 2014

Speaker: Jessica Lu (IfA Hawaii)

Title: Star Formation in Extreme Environments

Abstract: I will present work on understanding how the star formation process changes in extreme environments such as the Galactic center and massive young clusters. We measure the outcome of the star formation process - the initial mass function (IMF) - using high spatial resolution photometry and precise astrometry to kinematically seperate star cluster members and contaminating field stars. We find a top-heavy IMF in Galactic center clusters and compare this with the IMF in Milky Way disk clusters, including Orion and Westerlund 1. I will also discuss how astrometry can be used on nearby clusters, such as Orion, in order to test theories of star formation that predict different internal kinematics and ejection rates in clusters.


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