Musket Ball Cluster | |
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Observation data (Epoch J2000.0[1]) | |
Constellation(s) | Cancer |
Right ascension | 09h 16m 10.9s[1] |
Declination | +29° 48′ 44″[1] |
Redshift | 0.53[2] |
Other designations | |
Musket Ball Cluster,[3] DLSCL J0916.2+2951,[2] SHELS J0916.2+2949[1] |
The Musket Ball Cluster (DLSCL J0916.2+2951) is a galaxy cluster that exhibits separation between its baryonic matter and dark matter components. The cluster is a recent merger of two galaxy clusters. It is named after the Bullet Cluster, as it is a slower collision, and older than the Bullet Cluster. This cluster is further along the process of merger than the Bullet Cluster,[3] being some 500 million years older, at 700 million years old.[4] The cluster was discovered in 2011 by the Deep Lens Survey.[2] As of 2012, it is one of the few galaxy clusters to show separation between its dark matter and baryonic matter components.[5]