Chilean researchers investigate chemical composition of globular cluster NGC 6553
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Chilean researchers investigate chemical composition of globular cluster NGC 6553

by Tomasz Nowakowski , Phys.org

Spatial distribution of the observed stars in NGC 6553. Member stars are represented by red circles, while rejected stars are represented by black circles. The yellow line is the tidal radius of ∼ 8 arcmin. Credit: Montecinos et al., 2021.

Using the Very Large Telescope (VLT), astronomers from Chile have performed a chemical analysis of a sample of stars in the globular cluster NGC 6553. Results of this study, available in a paper published March 12 on the arXiv pre-print server, shed more light on the chemical composition of this cluster.