Abstract
Einstein’s theory of General Relativity was proposed over 100 years ago and has successfully passed a large number of observational tests in weak gravitational fields. On the contrary, the strong field regime is still largely unexplored. Astrophysical black holes are ideal laboratories for testing gravity in the strong field regime. Here I will briefly review the current efforts of my group to test the strong gravitational field around black holes using X-ray data from NuSTAR, RXTE, Suzaku, and XMM-Newton.
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A public version is available at http://www.physics.fudan.edu.cn/tps/people/bambi/Site/RELXILL_NK.html.
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Funding
This work was supported by the Innovation Program of the Shanghai Municipal Education Commission, Grant no. 2019-01-07-00-07-E00035, the National Natural Science Foundation of China (NSFC), Grant no. 11973019, and Fudan University, Grant no. JIH1512604.
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Paper presented at the Fourth Zeldovich meeting, an international conference in honor of Ya.B. Zeldovich held in Minsk, Belarus, on September 7–11, 2020. Published by the recommendation of the special editors: S.Ya. Kilin, R. Ruffini, and G.V. Vereshchagin.
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Cosimo Bambi Testing General Relativity with Black Hole X-Ray Data. Astron. Rep. 65, 902–905 (2021). https://doi.org/10.1134/S1063772921100024
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DOI: https://doi.org/10.1134/S1063772921100024