Continuous star cluster formation in the spiral NGC 45
Marcelo Mora, Soeren S. Larsen, Markus Kissler-Patig
Abstract
We determined ages for 52 star clusters with masses < 106 solar masses in the low surface brightness spiral galaxy NGC 45. Four of these candidates are old globular clusters located in the bulge. The remaining ones span a large age range. The cluster ages suggest a continuous star/cluster formation history without evidence for bursts, consistent with the galaxy being located in a relatively unperturbed environment in the outskirts of the Sculptor group.
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