Red giants in open clusters

Name: Work Video:
Duration: 3 min 30 s
Description: Context.The identification and characterisation of spectroscopic binaries with red-giant primaries in open clusters is important for a proper understanding of the colour-magnitude diagrams of the clusters. Moreover, the orbital eccentricities and axial rotations of these binaries are valuable probes into the inner structure and tidal interaction of the stars.
J. C. Mermilliod; J. Andersen; David W. Latham; M. Mayor
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