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Ages, age differences, masses of stars in young open clusters
Published online by Cambridge University Press: 04 August 2017
Abstract
An extensive amount of accurate uvby Hβ data has been obtained for stars in young open clusters. Age spread earlier found within the clusters has been confirmed. Many unevolved stars have been observed. The data for these stars are positioned below ZAMS curves in HR diagrams defined by the Strömgren indices. These unevolved stars form a confined lower envelope for all the stars a little below the “normal” ZAMS curves.
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- II. EVOLUTION OF MASSIVE STARS EVOLUTION AND MODELS
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- Copyright © Reidel 1984
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