THE STRUCTURE AND DYNAMICAL STATE OF ORIONAND OTHER YOUNG STELLAR CLUSTERS
Michael A. Kuhn1, Eric D. Feigelson1, Konstantin V. Getman1, Adrian Baddeley2, Leisa K. Townsley1, Patrick S. Broos1, Matthew S. Povich3, Kevin L. Luhman1, Heather A. Busk1, Tim Naylor4, Robert R. King4, Gordon P. Garmire1
1Pennsylvania State University, USA, 2University of Western Australia, Australia 3California State Polytechnic University, USA, 4University of Exeter, UK
MYStIX = Massive Young Star Forming Complex Study in Infrared and X-ray
More MYStIX: Talk by Eric Feigelson, Poster by Konstantin Getman
Data available on astro-ph and at www.astro.psu.edu/mystix
Finding clusters of young stars using “finite mixture models”
Layered structure to the Orion Nebula
X-ray SelectedIRE Selected
Typical Subcluster Properties
Embedded Subclusters tend to be smaller
Typical cluster cores have r=0.18 pc.
Strong relation between core radius and central density.
Similar to results interpreted by Pfalzner et al. (2009) as cluster expansion.
Dynamical properties of subclusters.
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