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A single polluting supermassive star could well be the cause of the curious variety of stars in old globular clusters. This is the conclusion of both observations and simulations performed by an international team of astronomers, among whom Henny Lamers, emeritus professor of the University of Amsterdam. They published their results in Monthly Notices of the Royal Astronomical Society.

Publication details


Concurrent formation of supermassive stars and globular clusters: implications for early self-enrichment. By: Mark Gieles (1), Corinne Charbonnel (2, 3), Martin G.H. Krause (4), Vincent Hénault-Brunet (5,6), Oscar Agertz (7), Henny J.G.L.M. Lamers (8), Nathan Bastian (9), Alessia Gualandris (1), Alice Zocchi (10,11), James A. Petts (1). 1. University of Surrey, United Kingdom. 2. University of Geneva, Switserland. 3. IRAP, UMR 5277, CNRS and Université de Toulouse, France. 4. University of Hertfordshire, United Kingdom. 5. National Research Council, Herzberg Astronomy & Astrophysics, Canada. 6. Radboud Universiteit, Netherlands 7. Lund University, Sweden. 8. Universiteit van Amsterdam, Netherlands. 9. Liverpool John Moores University, United Kingdom. 10. Università degli Studi di Bologna, Italy. 11 ESTEC, Netherlands. In MNRAS, 2018

Article on Phys.org explaining the results

Link to the article