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Not-So-Simple Stellar Populations in the Intermediate-age Large Magellanic Cloud Star Clusters NGC 1831 and NGC 1868
Chengyuan Li, Richard de Grijs, Licai Deng
Using a combination of high-resolution Hubble Space Telescope/WFPC2 observations, we explore the physical properties of the stellar populations in two intermediate-age star cluster…
Consequences of Dynamical Disruption and Mass Segregation for the Binary Frequencies of Star Clusters
Aaron M. Geller, Richard de Grijs, Chengyuan Li +1
The massive (13,000-26,000 Msolar), young (15-30 Myr) Large Magellanic Cloud star cluster NGC 1818 reveals an unexpected increasing binary frequency with radius for F-type stars (1…
The binary fractions in the massive young Large Magellanic Cloud star clusters NGC 1805 and NGC 1818
Chengyuan Li, Richard de Grijs, Licai Deng
Using high-resolution data sets obtained with the Hubble Space Telescope, we investigate the radial distributions of the F-type main-sequence binary fractions in the massive young…
Blue straggler evolution caught in the act in the Large Magellanic Cloud globular cluster Hodge 11
Chengyuan Li, Richard de Grijs, Licai Deng +1
High-resolution {\sl Hubble Space Telescope} imaging observations show that the radial distribution of the field-decontaminated sample of 162 'blue straggler' stars (BSs) in the $1…
Gravitational conundrum? Dynamical mass segregation versus disruption of binary stars in dense stellar systems
Richard de Grijs, Chengyuan Li, Yong Zheng +4
Upon their formation, dynamically cool (collapsing) star clusters will, within only a few million years, achieve stellar mass segregation for stars down to a few solar masses, simp…