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arXiv · 0710.3381

An X-ray emitting black hole in a globular cluster

Thomas J. Maccarone·Gilles Bergond·Arunav Kundu·Katherine L. Rhode·John J. Salzer·I Chun Shih·Stephen E. Zepf
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Abstract

We present optical and X-ray data for the first object showing strong evidence for being a black hole in a globular cluster. We show the initial X-ray light curve and X-ray spectrum which led to the discovery that this is an extremely bright, highly variable source, and thus must be a black hole. We present the optical spectrum which unambiguously identifies the optical counterpart as a globular cluster, and which shows a strong, broad [O III] emission line, most likely coming from an outflow driven by the accreting source.

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Thomas J. Maccarone, Gilles Bergond, Arunav Kundu, Katherine L. Rhode, John J. Salzer, I Chun Shih, Stephen E. Zepf. 2007-10-17. An X-ray emitting black hole in a globular cluster. https://doi.org/10.1017/s1743921308015883

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