Hot stars in young globular clusters of the Magellanic Clouds

Details Hot stars in young globular clusters of the Magellanic Clouds Hot stars in young globular clusters of the Magellanic Clouds

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987qjras..28..239k&link_type=abstract

Royal Astronomical Society, Quarterly Journal (ISSN 0035-8738), vol. 28, Sept. 1987, p. 239-241. Research supported by the Greek

Astronomy and Astrophysics

Astronomy

1

Early Stars, Globular Clusters, Hot Stars, Late Stars, Magellanic Clouds, Stellar Evolution, Abundance, Mass Flow Rate, Spectrum Analysis, Supergiant Stars

Scientific paper

The ratio R of early- to late-type luminous stars in young populous globular clusters in the Magellanic Clouds has been obtained via spectral classification. It was found that there are very young globular clusters (age 10 to the 7th - 5 x 10 to the 7th yr) with a high percentage of hot stars. This kind of stellar system is not observed in the Galaxy. The observed ratios R for the LMC clusters exhibit values larger than those found for the SMC, indicating that the hot stars in the SMC clusters are fewer. This has been attributed to the longer lifetimes of the late type supergiants because of lower heavy element abundances or lower mass loss rates.

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