Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 77, Issue 5, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-017-4850-5
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Funding
- National Natural Science Foundation of China [11573015]
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A modified Hayward black hole is a nonsingular black hole. It is proposed that it would form when the pressure generated by quantum gravity can stop matter's collapse as the matter reaches the Planck density. Strong deflection gravitational lensing occurring nearby its event horizon might provide some clues of these quantum effects in its central core. We investigate observables of the strong deflection lensing, including angular separations, brightness differences and time delays between its relativistic images, and we estimate their values for the supermassive black hole in the Galactic center. We find that it is possible to distinguish the modified Hayward black hole from a Schwarzschild one, but it demands a very high resolution, beyond current stage.
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