Testing General Relativity with Supermassive Black Holes Using X-Ray Reflection Spectroscopy
Askar B. AbdikamalovCenter for Field Theory and Particle Physics and Department of Physics, Fudan University, Shanghai 200438, ChinaDimitry AyzenbergCenter for Field Theory and Particle Physics and Department of Physics, Fudan University, Shanghai 200438, ChinaCosimo BambiCenter for Field Theory and Particle Physics and Department of Physics, Fudan University, Shanghai 200438, ChinaSourabh NampalliwarTheoretical Astrophysics, Eberhard-Karls Universität Tübingen, 72076 Tübingen, GermanyAshutosh TripathiCenter for Field Theory and Particle Physics and Department of Physics, Fudan University, Shanghai 200438, ChinaJelen WongCenter for Field Theory and Particle Physics and Department of Physics, Fudan University, Shanghai 200438, ChinaYerong XuCenter for Field Theory and Particle Physics and Department of Physics, Fudan University, Shanghai 200438, ChinaJinli YanCenter for Field Theory and Particle Physics and Department of Physics, Fudan University, Shanghai 200438, ChinaYunfeng YanCenter for Field Theory and Particle Physics and Department of Physics, Fudan University, Shanghai 200438, ChinaYuchan YangCenter for Field Theory and Particle Physics and Department of Physics, Fudan University, Shanghai 200438, China
2019en
ABI
Аннотация
In this paper, we review our current efforts to test General Relativity in the strong field regime by studying the reflection spectrum of supermassive black holes. So far we have analyzed 11 sources with observations of NuSTAR, Suzaku, Swift, and XMM-Newton. Our results are consistent with General Relativity, according to which the spacetime metric around astrophysical black holes should be well approximated by the Kerr solution. We discuss the systematic uncertainties in our model and we present a preliminary study on the impact of some of them on the measurement of the spacetime metric.
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