Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...139..104f&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 139, no. 1, Oct. 1984, p. 104-114.
Astronomy and Astrophysics
Astrophysics
35
B Stars, Hydrogen Clouds, Magellanic Clouds, O Stars, Star Distribution, Cluster Analysis, Confidence Limits, Pattern Recognition, Statistical Correlation
Scientific paper
Methods used in pattern recognition and cluster analysis are applied to investigate the spatial distribution of OB associations and emission regions in the LMC. The LMC is an irregular system with some suspected spiral structure. Until now this classification has been done by visual inspection. An attempt is made to quantify this and to give objective criteria for orderness and clustering. At a high confidence level (greater than 95 percent) associations and emission regions are not distributed at random. Several methods of cluster analytic partitions of the system reveal intermediate scale structures of 700-1500 pc being identical with the spiral arm filaments responsible for the flocculent appearance of spiral galaxies.
Braunsfurth E.
Feitzinger Johannes Viktor
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