Measuring helium abundance difference in giants of NGC 2808
Context. Multiple populations have been detected in several globular clusters (GC) that do not display a spread in metallicity. Unusual features of their observed colour.magnitude diagrams (CMD) can be interpreted in terms of differences in the helium content of the stars belonging to the sub-popula...
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| Autores principales: | , , , |
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| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00046361_v531_n_p_Pasquini |
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