Braneworld Black Hole Gravitational Lensing  

作　　者：梁钧 

机构地区：[1]College of Arts and Sciences,Shannxi University of Science and Technology,Xi'an 710021,China

出　　处：《Communications in Theoretical Physics》2017年第4期407-414,共8页理论物理通讯（英文版）

基　　金：Supported by Natural Science Foundation of Education Department of Shannxi Provincial Government under Grant No.15JK1077;Doctorial Scientific Research Starting Fund of Shannxi University of Science and Technology under Grant No.BJ12-02

摘　　要：A class of braneworld black holes, which I called as Bronnikov–Melnikov–Dehen(BMD) black holes,are studied as gravitational lenses. I obtain the deflection angle in the strong deflection limit, and further calculate the angular positions and magnifications of relativistic images as well as the time delay between different relativistic images. I also compare the results with those obtained for Schwarzschild and two braneworld black holes, i.e., the tidal Reissner-Nordstr¨om(R-N) and the Casadio–Fabbri–Mazzacurati(CFM) black holes.A class of braneworld black holes, which I called as Bronnikov–Melnikov–Dehen（BMD） black holes,are studied as gravitational lenses. I obtain the deflection angle in the strong deflection limit, and further calculate the angular positions and magnifications of relativistic images as well as the time delay between different relativistic images. I also compare the results with those obtained for Schwarzschild and two braneworld black holes, i.e., the tidal Reissner-Nordstr¨om（R-N） and the Casadio–Fabbri–Mazzacurati（CFM） black holes.

关 键 词：braneworld black hole gravitational lensing strong deflection limit 

分 类 号：P145.8[天文地球—天体物理]