Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...346..778b&link_type=abstract
Astronomy and Astrophysics, v.346, p.778-784 (1999)
Astronomy and Astrophysics
Astrophysics
11
Stars: Formation, Stars: Variables: Cepheids, Galaxies: Magellanic Clouds, Galaxies: Star Clusters
Scientific paper
A new simple method for the comparison of two-dimensional distributions is elaborated and applied to the observed spatial distributions of Cepheids and open clusters in the LMC. This method is particularly suited to pick out the clusterings within non-uniform fields. The comparative study of the spatial distributions for objects with known ages provides useful hints on the dominant mode of large scale star formation. We found that only one clump, out of four evident groups of open clusters coeval with the observed Cepheids (i.e. logt ~ 7.5/8.5) coincides with a local density enhancement of Cepheids. A relation between the age range inside a clump and its size is found; this is consistent with the theory of star formation in a turbulent medium.
Battinelli Paolo
Efremov Yuri N.
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