Discovery of Extended Main Sequence Turnoffs in Galactic Open Clusters
The color-magnitude diagrams (CMDs) of Galactic open clusters are widely considered to be the prototypes of single stellar populations. By using photometry in ultraviolet and optical bands we discovered that the nearby young cluster NGC 6705 (M11) exhibits an extended main-sequence turnoff (eMSTO) and a broadened main sequence (MS). This is the first evidence of multiple stellar populations in a Galactic open cluster. By using high-resolution Very Large Telescope (VLT) spectra we provide direct...[Show more]
|Collections||ANU Research Publications|
|Source:||Astrophysical Journal Letters|
|Access Rights:||Open Access|
|01_Marino_Discovery_of_Extended_Main_2018.pdf||738.56 kB||Adobe PDF|
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