Binary-driven stellar rotation evolution at the main-sequence turn-off in star clusters
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The impact of stellar rotation on the morphology of star cluster
colour-magnitude diagrams is widely acknowledged. However, the physics driving
the distribution of the equatorial rotation velocities of main-sequence
turn-off (MSTO) stars is as yet poorly understood. Using Gaia Data Release 2
photometry and new Southern African Large Telescope medium-resolution
spectroscopy, we analyse the intermediate-age (
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Fields of Research::51 - Physical sciences::5101 - Astronomical sciences::510109 - Stellar astronomy and planetary systems
Fields of Research::51 - Physical sciences::5101 - Astronomical sciences::510104 - Galactic astronomy
Fields of Research::51 - Physical sciences::5101 - Astronomical sciences::510102 - Astronomical instrumentation