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relxill_nk: A Relativistic Reflection Model for Testing Einstein’s Gravity

Center for Field Theory and Particle Physics and Department of Physics, Fudan University, Shanghai 200438, China
Theoretical Astrophysics, Eberhard-Karls Universität Tübingen, 72076 Tübingen, Germany
MIT Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA 02139, USA
Author to whom correspondence should be addressed.
Universe 2018, 4(7), 79;
Received: 7 June 2018 / Revised: 4 July 2018 / Accepted: 9 July 2018 / Published: 11 July 2018
(This article belongs to the Special Issue Gravity, Black Holes and Cosmology XXI)
Einstein’s theory of general relativity was proposed over 100 years ago and has successfully passed a large number of observational tests in the weak field regime. However, the strong field regime is largely unexplored, and there are many modified and alternative theories that have the same predictions as Einstein’s gravity for weak fields and present deviations when gravity becomes strong. relxill_nk is the first relativistic reflection model for probing the spacetime metric in the vicinity of astrophysical black holes and testing Einstein’s gravity in the strong field regime. Here, we present our current constraints on possible deviations from Einstein’s gravity obtained from the black holes in 1H0707–495, Ark 564, GX 339–4, and GS 1354–645. View Full-Text
Keywords: general relativity; black boles; X-ray astronomy general relativity; black boles; X-ray astronomy
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MDPI and ACS Style

Bambi, C.; Abdikamalov, A.B.; Ayzenberg, D.; Cao, Z.; Liu, H.; Nampalliwar, S.; Tripathi, A.; Wang-Ji, J.; Xu, Y. relxill_nk: A Relativistic Reflection Model for Testing Einstein’s Gravity. Universe 2018, 4, 79.

AMA Style

Bambi C, Abdikamalov AB, Ayzenberg D, Cao Z, Liu H, Nampalliwar S, Tripathi A, Wang-Ji J, Xu Y. relxill_nk: A Relativistic Reflection Model for Testing Einstein’s Gravity. Universe. 2018; 4(7):79.

Chicago/Turabian Style

Bambi, Cosimo, Askar B. Abdikamalov, Dimitry Ayzenberg, Zheng Cao, Honghui Liu, Sourabh Nampalliwar, Ashutosh Tripathi, Jingyi Wang-Ji, and Yerong Xu. 2018. "relxill_nk: A Relativistic Reflection Model for Testing Einstein’s Gravity" Universe 4, no. 7: 79.

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