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The study of intermediate-mass black holes is a young and promising field of research.If they exist,they could explain the rapid growth of supermassive black holes by acting as seeds in the early stage of galaxy formation.Formed by runaway collisions of massive stars in young and dense stellar clusters,intermediate-mass black holes could still be present in the centers of globular clusters,today.Our group has set out to investigate the presence of intermediate-mass black holes in globular clusters and study their properties.For a sample of 10 galactic globular clusters we measured the inner kinematic profiles with integral-field spectroscopy and determined masses or upper limits of central black holes in each cluster.In combination with literature data we further studied the positions of our results on known black-hole scaling relations(such as M–σ)and found a similar but flatter correlation for intermediate-mass black holes.Applying cluster evolution codes,the change in the slope could easily be explained with the stellar mass loss occurring in clusters in a tidal field over its life time.