Dr. Eng. Genevieve Parmentier

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Local-Density Driven Clustered Star Formation: builds on Parmentier & Pfalzner 2013.

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Predictions of an analytical model which builds on a constant star formation
efficiency per free fall time. As a result of the cluster-parent clump volume
density profile, stars are formed more efficiently in the cluster centre than in
the cluster outskirts.
 

Decrease with time of the gas volume density profile

 

Increase with time of the stellar component volume density profile

 


Time evolution of the stellar-component and gas volume density profiles




 


Evolution with time of the gas volume density profile (left panel; log-log plot) and evolution with time of the star formation efficiency profile (left panel; linear plot)




 


Evolution with time of the stellar-component surface density profile (left panel; log-log plot; blue diamond: limit of the cluster observed above background level) and evolution with time of the cluster mean volume density vs. cluster size (left panel; red = whole stellar-component; blue: stellar-component region surfacing above stellar foreground+background)