Title

Dissolution of Young Super Star Clusters in NGC 1569

Presenter Information

JohnPaul Crawford
J. Graham
W. Vacca

Presentation Type

Poster

Abstract

The galaxy NGC 1569 contains two young (~10 Million years) massive (~1 Million Solar Masses) star clusters (YMCs) formed during a recent burst of star formation. Theory suggests that YMCs are disrupted by numerous dynamical processes and are dissolved into the stellar population of their host galaxy. We explore the boundaries of the YMCs by examining the relation between the young cluster stars and the ambient field population in high resolution adaptive optics images from the Keck Observatory. Preliminary results indicate the presence of evolved high mass stars with the age of the clusters out to distances much larger than the radii of long-lived clusters in our own galaxy. This implies the clusters are observed actively dissolving into the galactic population, providing observational constraint on models of cluster dissipation.

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Apr 13th, 3:00 PM Apr 13th, 4:00 PM

Dissolution of Young Super Star Clusters in NGC 1569

UC Ballroom

The galaxy NGC 1569 contains two young (~10 Million years) massive (~1 Million Solar Masses) star clusters (YMCs) formed during a recent burst of star formation. Theory suggests that YMCs are disrupted by numerous dynamical processes and are dissolved into the stellar population of their host galaxy. We explore the boundaries of the YMCs by examining the relation between the young cluster stars and the ambient field population in high resolution adaptive optics images from the Keck Observatory. Preliminary results indicate the presence of evolved high mass stars with the age of the clusters out to distances much larger than the radii of long-lived clusters in our own galaxy. This implies the clusters are observed actively dissolving into the galactic population, providing observational constraint on models of cluster dissipation.