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Detection of the Stellar Intracluster Medium in Perseus (Abell 426)

19 May 2017, 16:00 UTC
Detection of the Stellar Intracluster Medium in Perseus (Abell 426)
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William E. Harris and Courtney J. Mulholland 2017 ApJ 839 102
HST photometry has revealed a population of intragalactic globular clusters (GCs) extending out to at least 500 kpc from the center of the Perseus Cluster; there may be 50,000 or more of these GCs.

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