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

Cao, Zheng; Bambi, Cosimo; Nampalliwar, Sourabh +2 more

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 parametrize…