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arXiv · 2210.05322

Testing Gravity with Black Hole X-Ray Data

Cosimo Bambi
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Abstract

The analysis of the properties of the X-ray radiation emitted from geometrically thin accretion disks around black holes can be a powerful tool to test General Relativity in the strong field regime. This chapter reviews the state-of-the-art of gravity tests with black hole X-ray data. So far, most efforts have been devoted to test the Kerr hypothesis - namely that the spacetime around astrophysical black holes is described by the Kerr solution - and X-ray data can currently provide among the most stringent constraints on possible deviations from the Kerr geometry. As of now, all X-ray analyses are consistent with the predictions of General Relativity.

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Cosimo Bambi. 2022-10-11. Testing Gravity with Black Hole X-Ray Data. https://doi.org/10.1007/978-981-97-2871-8_5

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