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Hierarchical clustering in the Local Group dwarf galaxy NGC 6822

Published online by Cambridge University Press:  18 January 2010

S. Schmeja ,
D. A. Gouliermis ,
R. S. Klessen ,
W. J. G. de Blok  and
F. Walter
S. Schmeja
Affiliation:
Zentrum für Astronomie der Universität Heidelberg, Heidelberg, Germany
D. A. Gouliermis
Affiliation:
Max-Planck-Institut für Astronomie, Heidelberg, Heidelberg, Germany
R. S. Klessen
Affiliation:
Zentrum für Astronomie der Universität Heidelberg, Heidelberg, Germany
W. J. G. de Blok
Affiliation:
Department of Astronomy, University of Cape Town, Cape Town, South Africa
F. Walter
Affiliation:
Max-Planck-Institut für Astronomie, Heidelberg, Heidelberg, Germany
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Abstract

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Star formation appears to be clumped into a hierarchy of structures, from giant molecular clouds down to individual cores and clusters, which are often hierarchical themselves, showing significant substructure. This has been demonstrated for our Galaxy through the application of sophisticated statistical methods, in particular the nearest-neighbour density and the minimum spanning tree (MST), to different star-forming regions. Here we present our analysis of clustered star formation as demonstrated through the detection of structures of young stellar populations in the dwarf star-forming galaxy NGC 6822.

Keywords

galaxies: Local Groupgalaxies: star clustersgalaxies: stellar contentgalaxies: structure
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S266: Star clusters: basic galactic building blocks throughout time and space , August 2009 , pp. 538
Copyright
Copyright © International Astronomical Union 2010