Testing General Relativity with the Reflection Spectrum of the Supermassive Black Hole in 1H0707-495

Recently, we have extended the x-ray reflection model relxill to test the spacetime metric in the strong gravitational field of astrophysical black holes. In the present Letter, we employ this extended model to analyze XMM-Newton, NuSTAR, and Swift data of the supermassive black hole in 1H0707-495 a...

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Published in:Physical review letters 2018-02, Vol.120 (5), p.051101-051101, Article 051101
Main Authors: Cao, Zheng, Nampalliwar, Sourabh, Bambi, Cosimo, Dauser, Thomas, García, Javier A
Format: Article
Language:English
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Summary:Recently, we have extended the x-ray reflection model relxill to test the spacetime metric in the strong gravitational field of astrophysical black holes. In the present Letter, we employ this extended model to analyze XMM-Newton, NuSTAR, and Swift data of the supermassive black hole in 1H0707-495 and test deviations from a Kerr metric parametrized by the Johannsen deformation parameter α_{13}. Our results are consistent with the hypothesis that the spacetime metric around the black hole in 1H0707-495 is described by the Kerr solution.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.120.051101