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High-energy astrophysics

A new spin on black-hole masses

The extreme environment surrounding a black hole provides an ideal test bed for the predictions of general relativity. New observations of a spinning black hole push current theories to their limits.

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Figure 1: Artist's impression of superluminal jets emanating from a 'microquasar'.

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Correspondence to Charles Bailyn.

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Bailyn, C. A new spin on black-hole masses. Nature 414, 499–501 (2001). https://doi.org/10.1038/35107183

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