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Friday 29 May 2015Seminar: Black Holes in Globular Clusters

Prof Craig Heinke - University of Alberta

Physics, 4th floor 14:00-15:00

I'll review searches for black holes (both stellar and intermediate-mass - the latter meaning 100s-1000s of Msun) in globular clusters. Searches for intermediate-mass black holes in globular clusters have not found convincing evidence, despite tantalizing hints. Bright X-ray binaries in extragalactic globular clusters do provide evidence favouring the existence of black holes in globular clusters. Recently, new discoveries of radio-bright X-ray sources in Galactic globular clusters are providing evidence for a population of low-accretion-rate black hole systems with surprising properties.

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