https://doi.org/10.1140/epjc/s10052-019-7537-2
Regular Article - Theoretical Physics
Weak and strong deflection gravitational lensing by a renormalization group improved Schwarzschild black hole
1
School of Astronomy and Space Science, Nanjing University, Nanjing, 210023, China
2
Key Laboratory of Modern Astronomy and Astrophysics, Ministry of Education, Nanjing University, Nanjing, 210023, China
* e-mail: yixie@nju.edu.cn
Received:
29
July
2019
Accepted:
6
December
2019
Published online:
17
December
2019
Weak and strong deflection gravitational lensing by a renormalization group improved Schwarzschild black hole is investigated and its observables are found. By taking the supermassive black holes Sgr A* and M87* respectively in the Galactic Center and at the center of M87 as lenses, we estimate these observables and analyse possibility of detecting this quantum improvement. It is not feasible to distinguish such a black hole by most observables in the near future except for the apparent size of the shadow. We also note that directly using measured shadow of M87* to constrain this quantum effect requires great care.
© The Author(s), 2019
