Strong deflection lensing by a Lee-Wick black hole

被引：47
|
作者：
Zhao, Shan-Shan [1 ,2 ]
Xie, Yi [1 ,2 ]
机构：
[1] Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Jiangsu, Peoples R China
[2] Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China
来源：
PHYSICS LETTERS B | 2017年 / 774卷
基金：
中国国家自然科学基金;
关键词：
FIELD; GRAVITY;
D O I：
10.1016/j.physletb.2017.09.090
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study strong deflection gravitational lensing by a Lee-Wick black hole, which is a non-singular black hole generated by a high derivative modification of Einstein-Hilbert action. The strong deflection lensing is expected to produce a set of relativistic images very closed to the event horizon of the black hole. We estimate its observables for the supermassive black hole in our Galactic center. It is found that the Lee-Wick black hole can be distinguished from the Schwarzschild black hole via such lensing effects when the UV scale is not very large, but the requiring resolution is much higher than current capability. (c) 2017 The Authors. Published by Elsevier B.V.
引用
收藏
页码：357 / 361
页数：5
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