CDG-2, a clump of four globular clusters in the Perseus cluster, is validated as an almost dark galaxy: faint diffuse emission appears in both HST and Euclid imaging, with globular clusters contributing at least 16.6% of its light.
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Candidate Dark Galaxy-2: Validation and Analysis of an Almost Dark Galaxy in the Perseus Cluster
CDG-2, a clump of four globular clusters in the Perseus cluster, is validated as an almost dark galaxy: faint diffuse emission appears in both HST and Euclid imaging, with globular clusters contributing at least 16.6% of its light.