Super star cluster

Super star clusters are huge star clusters of very young large stars. They are thought to be precursors of globular clusters.[1] Their short-lived huge blue stars emit lots of UV radiation which ionises the surrounding gas. Examples are Westerlund 1 and 2 in the Milky Way, and R136 in the Larger Magellanic Cloud. Nearby galaxy NGC 1569 has two SSCs.

References
  1. Gallagher & Grebel (2002). "Extragalactic star clusters: speculations on the future". Extragalactic Star Clusters, IAU Symposium. 207: 207. arXiv:astro-ph/0109052. Bibcode:2002IAUS..207..745G.


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