Oxygen and Carbon Abundances in Blue Straggler Stars

Oxygen abundance as a function of Carbon abundance (both with respect to Iron and in a logarithmic scale) for the Blue straggler stars observed in the globular cluster 47 Tuc. Normal Blue straggler stars are marked with empty circles, while the 6 Carbon and Oxygen-deplete Blue Straggler stars are marked with red squares. Their names are also indicated. The yellow region correspond to the location of other stars in 47 Tuc previously studied

Credit:

ESO

About the Image

Id:eso0637a
Type:Chart
Release date:2 October 2006
Related releases:eso0637
Size:2055 x 1172 px

About the Object

Name:47 Tucanae
Type:• Milky Way : Star : Grouping : Cluster : Globular
• X - Star Clusters
Distance:15000 light years

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