Morphology of galactic open clusters

Details Morphology of galactic open clusters Morphology of galactic open clusters

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13q.381c&link_type=abstract

In: Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 J

Astronomy and Astrophysics

Astronomy

Dense Stellar Systems

Scientific paper

Thirty six open clusters were selected from the 2MASS database on the basis of the latest open cluster catalogue (Dias et al 2002). The morphological parameters such as eccentricity orientation were obtained via isodensity elliptic fitting. Most star clusters are elongated and the eccentricity is correlated with z as an indication of the influence of the Galactic disk. The morphology shows clear evidence of competing internal dynamics and external Galactic disturbances when a cluster becomes 10 Myr old.

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