Four stellar populations and extreme helium variation in the massive outer-halo globular cluster NGC 2419 Zennaro, M., Milone A. P., Marino A. F., Cordoni G., Lagioia E. P., Tailo M. Last updated on Apr 20, 2020 PDF Cite Code Project DOI Source Themes Related A two orbits proposal to solve the age spread dilemma in young Magellanic Clouds clusters Is helium the key parameter in the extended colour spread of the first generation stars in M3? Extended Main-sequence Turnoffs in the Double Cluster h and χ Persei: The Complex Role of Stellar Rotation The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. XIX. A Chemical Tagging of the Multiple Stellar Populations Over the Chromosome Maps Mass Loss of Different Stellar Populations in Globular Clusters: The Case of M4