A new strong lensing model of SPT-CL J0356-5337, built from HST and MUSE data, finds two dark matter subclusters of comparable mass (ratio about 1.35) consistent with a major merger.
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The z=1.03 Merging Cluster SPT-CL J0356-5337: New Strong Lensing Analysis with HST and MUSE
A new strong lensing model of SPT-CL J0356-5337, built from HST and MUSE data, finds two dark matter subclusters of comparable mass (ratio about 1.35) consistent with a major merger.