https://doi.org/10.1140/epjc/s10052-018-5875-0
Regular Article - Theoretical Physics
Iron line spectroscopy of black holes in asymptotically safe gravity
1
Center for Field Theory and Particle Physics, Department of Physics, Fudan University, Shanghai, 200438, China
2
Theoretical Astrophysics, Eberhard-Karls Universität Tübingen, 72076, Tübingen, Germany
* e-mail: bambi@fudan.edu.cn
Received:
23
April
2018
Accepted:
4
May
2018
Published online:
12
May
2018
We study the iron line shape expected in the reflection spectrum of accretion disks around black holes in asymptotically safe gravity. We compare the results of our simulations with the iron line shapes expected in the reflection spectrum of accretion disks around Kerr black holes to see if the technique of iron line spectroscopy can be used as a tool to test asymptotically safe gravity. Our analysis shows that current X-ray facilities are surely unable to distinguish black holes in asymptotically safe gravity from black holes in Einstein’s gravity. In the case of the next generation of X-ray missions, which promise to provide unprecedented high quality data, the question remains open because it cannot be addressed within our simplified model.
© The Author(s), 2018
