Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998arep...42..446g&link_type=abstract
Astronomy Reports, Volume 42, Issue 4, July 1998, pp.446-452
Astronomy and Astrophysics
Astronomy
2
Scientific paper
The age distributions in the bar and disk of the Large Magellanic Cloud are studied using data for 262 clusters with known ages, of which 89 are located in the bar. The spatial distributions for clusters in different age groups are investigated. Epochs of active star formation are determined for the bar and disk of the LMC. The composition of the stellar population in the bar differs from that for the galaxy as a whole: in the bar, there is a deficit of intermediate-age clusters (5 x 10^8 - 6 x 10^9 years) and an excess of young clusters with ages 3 x 10^7 5 x 10^8 years. This indicates that the star formation history in the bar differs from that in regions outside the bar at the same distances from the center of the galaxy. Data on the composition of the old stellar populations in the bar and the disk of the LMC and the spatial distribution of intermediate-age clusters in the galaxy suggest that the LMC bar formed (2-6) x 10^9 years ago.
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