期刊
ASTROPHYSICAL JOURNAL
卷 878, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.3847/1538-4357/ab1f89
关键词
accretion, accretion disks; black hole physics; gravitation
资金
- Innovation Program of the Shanghai Municipal Education Commission [2019-01-07-00-07-E00035]
- National Natural Science Foundation of China (NSFC) [U1531117]
- Fudan University [IDH1512060]
- Shanghai Government Scholarship (SGS)
- Alexander von Humboldt Foundation
- Excellence Initiative at Eberhard-Karls Universitat Tubingen
We present the public release version of RELXILL_NK, an X-ray reflection model for testing the Kerr hypothesis and general relativity. This model extends the RELXILL model that assumes the black hole (BH) spacetime is described by the Kerr metric. We also present RELXILLLP_NK, the first non-Kerr X-ray reflection model with a lamppost corona configuration, as well as all other models available in the full RELXILL_NK package. In all models the relevant relativistic effects are calculated through a general relativistic ray-tracing code that can be applied to any well-behaved, stationary, axisymmetric, and asymptotically flat BH spacetime. We show that the numerical error introduced by using a ray-tracing code is not significant compared with the observational error present in current X-ray reflection spectrum observations. In addition, we present the reflection spectrum for the Johannsen metric as calculated by RELXILL_NK.
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