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Unveiling the complexities of massive star clusters
报告题目:Unveiling the complexities of massive star clusters
报 告  人:Richard de Grijs (Macquarie University, Sydney, Australia & International Space Science Institute--Beijing, China)
报告时间:2024-04-18 16:00:00
报告地点:Hall 212, Astronomy Building

Abstract: Around the turn of the last century, star clusters of all kinds were considered ‘simple’ stellar populations. Over the past decades, this situation has changed dramatically. At the same time, star clusters are among the brightest stellar population components and, as such, they are visible out to much greater distances than individual stars, even the brightest, so that understanding the intricacies of star cluster composition and their evolution is imperative for understanding stellar populations and the evolution of galaxies as a whole. In this brief review of where the field has moved to in recent years, we place particular emphasis on the properties and importance of the effects of rapid stellar rotation, and the presence of multiplicity among the red-giant-branch populations in Magellanic Cloud star clusters with ages up to a few billion years.


Biography:
Richard de Grijs obtained his PhD from the University of Groningen (Netherlands) and held two postdoctoral positions, at the University of Virginia (USA) and the University of Cambridge (UK). Following his first tenured appointment at the University iof Sheffield (UK), he spent 8.5 years as professor at the Kavli Institute for Astronomy and Astrophysics at Peking University. He is currently professor and formner Associate Dean (International) at Macquarie University in Sydney (Australia). Richard commenced a role as Executive Director of the International Space Science Institute–Beijing in June 2023. In addition, he is President of the International Astronomical Union's (IAU) Division C (Education, Outreach and Heritage) and an Associate Editor of the Journal of Astronomical History and Heritage. Richard's research focuses on (i) star clusters/stellar populations; (ii) stellar variability/the astronomical distance scale; and (iii) the history of maritime navigation (the 'longitude problem'). Richard is the founding director of the IAU's East Asian Regional Office of Astronomy for Development (2012-2016). In 2012 he was awarded the Selby Award for excellence in science by the Australian Academy of Science, a 2013 Visiting Academy Professorship at Leiden University by the Royal Netherlands Academy of Arts and Sciences, and a 2017 Erskine award by the University of Canterbury (New Zealand). He won the 2022 Blacktown Mayoral History Prize, following the Hektoen International/Ella Mannheimer Award in the same year.