English

Influence of Quantum Correction on the Black Hole Shadows, Photon Rings and Lensing Rings

General Relativity and Quantum Cosmology 2021-09-01 v1

Abstract

We calculate the photon sphere rphr_{ph} and critical curve bcb_c for the quantum corrected Schwarzschild black hole, finding that they violate an universal inequalities proved for asymptotically flat black holes which satisfy null energy condition in the framework of Einstein gravity. This violation seem to be a common phenomenon when considering quantum modification of Einstein gravity. Furthermore, we study the shadows, lensing rings and photon rings in the quantum corrected Schwarzschild black hole. The violation leads to a larger bright lensing ring in the observational appearance of thin disk emission near the black hole compared with the classical Schwarzschild black hole. Our analysis may provide a observational evidence for quantum effect of general relativity.

Keywords

Cite

@article{arxiv.2008.00657,
  title  = {Influence of Quantum Correction on the Black Hole Shadows, Photon Rings and Lensing Rings},
  author = {Jun Peng and Minyong Guo and Xing-Hui Feng},
  journal= {arXiv preprint arXiv:2008.00657},
  year   = {2021}
}

Comments

LaTex, 13 pages, 3 figures, 1 table