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

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Om bilden

ID:eso0637a
Typ:Diagram
Publiceringsdatum:2 oktober 2006
Relaterade pressmeddelanden:eso0637
Storlek:2055 x 1172 px

Om objektet

Namn:47 Tucanae
Typ:Milky Way : Star : Grouping : Cluster : Globular
Avstånd:15000 ljusår
Kategori:Star Clusters

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