Shadows and strong gravitational lensing: a brief review

被引:441
作者
Cunha, Pedro V. P. [1 ,2 ,3 ]
Herdeiro, Carlos A. R. [1 ,2 ]
机构
[1] Univ Aveiro, Dept Fis, Campus Santiago, P-3810183 Aveiro, Portugal
[2] CIDMA, Campus Santiago, P-3810183 Aveiro, Portugal
[3] Univ Lisbon, Inst Super Tecn, Dept Fis, Ctr Astrofis & Gravitacao CENTRA, Av Rovisco Pais 1, P-1049001 Lisbon, Portugal
基金
欧盟地平线“2020”;
关键词
Strong gravitational lensing; Black hole shadow; DILATONIC BLACK-HOLES; COLLAPSE; GRAVITY; ENERGY; STAR; MASS;
D O I
10.1007/s10714-018-2361-9
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
For ultra compact objects, light rings and fundamental photon orbits (FPOs) play a pivotal role in the theoretical analysis of strong gravitational lensing effects, and of BH shadows in particular. In this short review, specific models are considered to illustrate how FPOs can be useful in order to understand some non-trivial gravitational lensing effects. This paper aims at briefly overviewing the theoretical foundations of these effects, touching also some of the related phenomenology, both in general relativity and alternative theories of gravity, hopefully providing some intuition and new insights for the underlying physics, which might be critical when testing the Kerr black hole hypothesis.
引用
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页数:27
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