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

Autor: Cao Z; Center for Field Theory and Particle Physics and Department of Physics, Fudan University, 200433 Shanghai, China., Nampalliwar S; Center for Field Theory and Particle Physics and Department of Physics, Fudan University, 200433 Shanghai, China.; Theoretical Astrophysics, Eberhard-Karls Universität Tübingen, 72076 Tübingen, Germany., Bambi C; Center for Field Theory and Particle Physics and Department of Physics, Fudan University, 200433 Shanghai, China.; Theoretical Astrophysics, Eberhard-Karls Universität Tübingen, 72076 Tübingen, Germany., Dauser T; Remeis Observatory and ECAP, Universität Erlangen-Nürnberg, 96049 Bamberg, Germany., García JA; Remeis Observatory and ECAP, Universität Erlangen-Nürnberg, 96049 Bamberg, Germany.; Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, California 91125, USA.; Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA.
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2018 Feb 02; Vol. 120 (5), pp. 051101.
DOI: 10.1103/PhysRevLett.120.051101
Abstrakt: 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.
Databáze: MEDLINE