Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...279..567h&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 279, April 15, 1984, p. 567-577. Research supported by the Natural Sciences
Astronomy and Astrophysics
Astrophysics
25
Astronomical Photography, Magellanic Clouds, Star Distribution, Stellar Color, Stellar Magnitude, Diagrams, Giant Stars, Interstellar Extinction, Main Sequence Stars, Photographic Plates, Stellar Evolution
Scientific paper
Deep and rich color-magnitude diagrams are presented for four field areas in the Wing of the Small Magellanic Cloud (SMC) near the clusters NGC 376, NGC 416, and NGC 419. The interpretation of the diagrams in terms of preponderant epochs of star formation is shown to depend critically on the distance and reddening scales adopted for SMC. Under the scales used here, the presence of a well-populated subgiant branch indicates the existence of an underlying intermediate-age population which is older than 3 Gyr and which may be proportionally more important in the SMC field than in the field of the Large Magellanic Cloud. It would seem that although stars of all ages are probably present in both Clouds, the median age of star formation is older in the SMC field.
Durand Daniel
Hardy Eduardo
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