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Intermediate mass black hole in the centre of M31’s largest globular cluster

Very cool research on the detection of an intermediate-mass (approx. 100,000 times the mass of the Sun) black hole in the most massive Globular Cluster of Andromeda. This means that this cluster is a tidally stripped nucleus of a larger galaxy. This technique can be used to estimate the number of galaxies that have merged into a larger galaxy

More here https://arxiv.org/abs/2111.08720

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