Extended Main-sequence Turnoff as a Common Feature of Milky Way Open Clusters
We present photometric analysis of 12 Galactic open clusters and show that the same multiple-population phenomenon observed in Magellanic Clouds (MCs) is present in nearby open clusters. Nearly all the clusters younger than ∼2.5 Gyr of both MCs exhibit extended main-sequence turnoffs (eMSTOs) and all the cluster younger than ∼700 Myr show broadened/split main sequences (MSs). High-resolution spectroscopy has revealed that these clusters host stars with a large spread in the observed projected...[Show more]
|Collections||ANU Research Publications|
|Source:||The Astrophysical Journal|
|Access Rights:||Open Access|
|01_Cordoni_Extended_Main-sequence_Turnoff_2018.pdf||20.63 MB||Adobe PDF|
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