Gravitational weak lensing by black hole in Horndeski gravity in presence of plasma

被引：34

作者：

Atamurotov, Farruh ^{[1
,2
,3
]}

Sarikulov, Furkat ^{[3
]}

Abdujabbarov, Ahmadjon ^{[3
,4
,5
,6
,7
]}

Ahmedov, Bobomurat ^{[3
,5
,6
]}

机构：

[1] Inha Univ Tashkent, Ziyolilar 9, Tashkent 100170, Uzbekistan

[2] Akfa Univ, Milliy Bog St 264, Tashkent 111221, Uzbekistan

[3] Natl Univ Uzbekistan, Tashkent 100174, Uzbekistan

[4] Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China

[5] Ulugh Beg Astron Inst, Astronomy St 33, Tashkent 100052, Uzbekistan

[6] Natl Res Univ TIIAME, Inst Fundamental & Appl Res, Kori Niyoziy 39, Tashkent 100000, Uzbekistan

[7] Inst Nucl Phys, Tashkent 100214, Uzbekistan

来源：

EUROPEAN PHYSICAL JOURNAL PLUS | 2022年 / 137卷 / 03期

关键词：

SHADOW;

D O I：

10.1140/epjp/s13360-022-02548-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the effect of both (i) uniformly and (ii) non-uniformly distributed plasma on gravitational lensing around static black hole in Horndeski gravity. It is observed that the influence of the Horndeski gravity's parameter q on the deflection angle of the light plays an important role and it increases the deflection angle in comparison with that in the standard Schwarzschild black hole environment. We simultaneously took into account the action of the surrounding plasma and compared the deflection angle for two types of plasma distribution at fixed value of parameter q. It is shown that for the gravitation lensing phenomena in environment of static black hole in Horndeski gravity, influence of uniform plasma medium is more efficient than that of non-uniform plasma as it was expected. Additionally, we have studied magnification of images in vicinity of Horndeski black hole by plasma medium.

引用

页数：12

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