They find among the clumps also very red - evolved - objects consistent with quenched, old stellar systems. No evidence for [OIII] emission from these red sources, suggesting that these are evolved globular clusters that formed at z~7-11. If confirmed with additional spectroscopy, these red, compact sparkles represent the first evolved globular clusters found at high redshift.
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Mowla+22 - The Sparkler: Evolved High-redshift Globular Cluster Candidates Captured by JWST
They find among the clumps also very red - evolved - objects consistent with quenched, old stellar systems. No evidence for [OIII] emission from these red sources, suggesting that these are evolved globular clusters that formed at z~7-11. If confirmed with additional spectroscopy, these red, compact sparkles represent the first evolved globular clusters found at high redshift.
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