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Black Holes in Globular Clusters
April 10, 201711:30 am – 12:30 pm (CDT)

Black Holes in Globular Clusters


Jay Strader (Michigan State University)



Mitchell Institute for Fundamental Physics & Astronomy

College Station, Texas 77843

Event Details

Hundreds of stellar-mass black holes form in the early lifetime of a typical globular star cluster. But, unlike the case for neutron stars, no bright X-ray binaries containing black holes have been observed in globular clusters, which led to theoretical predictions that most or all of the black holes should be efficiently ejected through dynamical interactions. I will highlight results from our ongoing survey using deep radio continuum and X-ray data to search for accreting black holes in Milky Way globular clusters, presenting evidence that black holes may indeed be common in globular clusters. I will discuss implications for the dynamical formation of binary black holes observable as LIGO gravitational wave sources.

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