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My research concentrates on star clusters as tracers of the stellar populations within their parent galaxies. In most galaxies beyond the Local Group, individual stars are too faint to be resolved and studied in detail. Star clusters, on the other hand, can be detected out to large distances, and their ages and metallicities can be measured. We currently know very little about the detailed chemical evolution of stellar populations outside the Local Group, a situation I am working hard to improve by means of high quality spectroscopy of massive clusters in a variety of external galaxies.
I am also interested in the problem of multiple stellar populations in globular clusters. From spectroscopic and photometric observations, it is known that a large fraction of the stars within globular clusters have abundances of the light elements in combinations that are seen nowhere else. Why that is so remains a mystery, and while several scenarios have been proposed, none provides a satisfactory explanation. My work is mainly concerned with providing constraints on the various theories, in particular using observations of globular clusters in dwarf galaxies.
Research Interests
Papers共 194 篇Author StatisticsCo-AuthorSimilar Experts
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Astronomy & Astrophysics (2024)
arxiv(2024)
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arxiv(2024)
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ASTRONOMY & ASTROPHYSICS (2024)
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETYno. 2 (2023): 3164-3182
ASTROPHYSICAL JOURNALno. 1 (2023): 20
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETYno. 1 (2022): 1505-1521
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Author Statistics
#Papers: 194
#Citation: 7071
H-Index: 47
G-Index: 74
Sociability: 7
Diversity: 2
Activity: 42
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